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WO2023092050A1 - Combinaisons bénéfiques contenant des cellules de bacillus recombinées exprimant une sérine protéase - Google Patents

Combinaisons bénéfiques contenant des cellules de bacillus recombinées exprimant une sérine protéase Download PDF

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Publication number
WO2023092050A1
WO2023092050A1 PCT/US2022/080101 US2022080101W WO2023092050A1 WO 2023092050 A1 WO2023092050 A1 WO 2023092050A1 US 2022080101 W US2022080101 W US 2022080101W WO 2023092050 A1 WO2023092050 A1 WO 2023092050A1
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Prior art keywords
spp
exosporium
seq
plant
identity
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PCT/US2022/080101
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English (en)
Inventor
Kevin Bugg
Bill Hendrix
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Bayer Cropscience Lp
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Publication of WO2023092050A1 publication Critical patent/WO2023092050A1/fr

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
    • A01N63/20—Bacteria; Substances produced thereby or obtained therefrom
    • A01N63/22—Bacillus
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N63/00—Biocides, pest repellants or attractants, or plant growth regulators containing microorganisms, viruses, microbial fungi, animals or substances produced by, or obtained from, microorganisms, viruses, microbial fungi or animals, e.g. enzymes or fermentates
    • A01N63/20—Bacteria; Substances produced thereby or obtained therefrom
    • A01N63/22—Bacillus
    • A01N63/23—B. thuringiensis
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P21/00—Plant growth regulators
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P5/00—Nematocides
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01P—BIOCIDAL, PEST REPELLANT, PEST ATTRACTANT OR PLANT GROWTH REGULATORY ACTIVITY OF CHEMICAL COMPOUNDS OR PREPARATIONS
    • A01P7/00—Arthropodicides

Definitions

  • fertilizers are employed worldwide, based on both inorganic and organic substances.
  • a fertilizer may be a single substance or a composition, and is used to provide nutrients to plants.
  • a major breakthrough in the application of fertilizers was the development of nitrogen-based fertilizer by Justus von Liebig around 1840. Fertilizers, however, can lead to soil acidification and destabilization of nutrient balance in soil, including depletion of minerals and enrichment of salt and heavy metals.
  • excessive fertilizer use can lead to alteration of soil fauna as well as contaminate surface water and ground water. Further, unhealthful substances such as nitrate may become enriched in plants and fruits.
  • insecticides and fungicides are employed worldwide to control pests. Synthetic insecticides or fungicides often are non-specific and therefore can act on organisms other than the target organisms, including other naturally occurring beneficial organisms. Because of their chemical nature, they may also be toxic and non-biodegradable. Consumers worldwide are increasingly conscious of the potential environmental and health problems associated with the residuals of chemicals, particularly in food products. This has resulted in growing consumer pressure to reduce the use or at least the quantity of chemical (i.e., synthetic) pesticides. Thus, there is a need to manage food chain requirements while still allowing effective pest control.
  • a further problem arising with the use of synthetic insecticides or fungicides is that the repeated and exclusive application of an insecticide or fungicide often leads to selection of resistant animal pests or microorganisms. Normally, such strains are also crossresistant against other active ingredients having the same mode of action. An effective control of the pathogens with said active compounds is then not possible any longer. However, active ingredients having new mechanisms of action are difficult and expensive to develop.
  • BCAs biological control agents
  • insecticides and/or plant health-enhancing and/or plant protection agents act as insecticides and/or plant health-enhancing and/or plant protection agents
  • the effectiveness of BCAs is not at the same level as for conventional insecticides and fungicides, especially in case of severe infection pressure. Consequently, in some circumstances, biological control agents, their mutants and metabolites produced by them are, in particular, in low application rates, not entirely satisfactory.
  • biological control agents including biological control agents used in conjunction with synthetic fungicides and insecticides, to strive to fulfill the above-mentioned requirements.
  • sequence listing is submitted electronically via EFS- Web as an XML-formatted sequence listing with a file named “BCS219008 WO.xml” created on November 16, 2022, and having a size of 19 kilobytes, and is filed concurrently with the specification.
  • the sequence listing contained in this XML-formatted document is part of the specification and is herein incorporated by reference in its entirety.
  • compositions which have an enhanced ability to improve plant growth and/or to enhance plant health or which exhibit enhanced activity against insects, mites, and/or nematodes.
  • compositions according to the invention as defined in the following.
  • a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) at least one enzyme having serine protease activity; and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells or exosporium fragments derived from such recombinant exosporium-producing Bacillus cells; and b) at least one particular insecticide disclosed herein, one is able to enhance preferably in a superadditive manner (i) plant growth, plant yield and/or plant health and/or (ii) the activity against insects, mites, nematodes and/or phytopathogens.
  • references herein to targeting sequences, exosporium proteins, exosporium protein fragments, fusion proteins, and recombinant exosporium producing Bacillus cells that express such fusion proteins should not be considered to be stand-alone embodiments. Instead, throughout the present application, references to the targeting sequences, exosporium proteins, exosporium protein fragments, fusion proteins, and recombinant exosporium producing Bacillus cells that express such fusion proteins should be considered to be disclosed and claimed only in combination (and preferably in a synergistic combination) with one or more of the particular insecticides described herein. Furthermore, references to the “particular insecticide disclosed herein” are intended to encompass insecticides described below under the heading “Insecticides.”
  • the present invention is directed to a composition
  • a composition comprising in synergistically effective amounts: a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) a Bacillus firmus serine protease; and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells or exosporium fragments derived from such recombinant exosporium-producing Bacillus cells; and b) at least one insecticide selected from the group consisting of acetamiprid, aldicarb, amitraz, beta- cyfluthrin, carbaryl, clothianidin, cyfluthrin, cypermethrin, deltamethrin, endosulfan, ethion, ethiprole, ethoprophos, fenamiphos, fenobucarb, fenthion, fipronil, flubendi
  • the targeting sequence comprises: an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%; a targeting sequence comprising amino acids 1-35 of SEQ ID NO: 1; a targeting sequence comprising amino acids 20-35 of SEQ ID NO: 1; a targeting sequence comprising amino acids 22-31 of SEQ ID NO: 1; a targeting sequence comprising amino acids 22-33 of SEQ ID NO: 1; a targeting sequence comprising amino acids 20-31 of SEQ ID NO: 1; a targeting sequence comprising SEQ ID NO: 1; a targeting sequence comprising SEQ ID NO: 2; or an exosporium protein comprising an amino acid sequence having at least 85% identity with SEQ ID NO: 3.
  • the exosporium-producing Bacillus cells are cells of a Bacillus cereus family member.
  • the recombinant exosporium-producing Bacillus cells may be any one of Bacillus anthracis, Bacillus cereus, Bacillus thuringiensis , Bacillus mycoides, Bacillus pseudomycoides, Bacillus samanii, Bacillus gaemokensis, Bacillus weihenstephensis, Bacillus toyoiensis, and combinations thereof.
  • the recombinant Bacillus cells are cells of Bacillus thuringiensis BT013A.
  • the fusion protein comprises a serine protease enzyme from Bacillus firmus.
  • the insecticide is selected from the group consisting of acetamiprid, aldicarb, amitraz, beta-cyfluthrin, carbaryl, clothianidin, cyfluthrin, cypermethrin, deltamethrin, endosulfan, ethion, ethiprole, ethoprophos, fenamiphos, fenobucarb, fenthion, fipronil, flubendiamide, flupyradifurone, fluopyram, formetanate, heptanophos, imidacloprid, methamidophos, methiocarb, methomyl, niclosamide, oxydemeton-methyl, phosalone, silafluofen, spirodiclofen, spiromesifen, spirotetramat, thiacloprid, thiodicarb, tralomethrin, triazophos
  • the insecticide is selected from the group consisting of clothianidin, cypermethrin, ethiprole, fipronil, fluopyram, flupyradifurone, imidacloprid, methiocarb, and thiodicarb.
  • the composition of the present invention comprises a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) an enzyme having serine protease activity comprising an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-6 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6; and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells; and b) at least one insecticide selected from the group consisting of clothianidin, cypermethrin, ethiprole, fipronil, fluopyram, flupyradifurone, imidacloprid, methiocarb, and thiodicarb in a synergistically effective amount.
  • the at least one insecticide is clothianidin;
  • the targeting sequence comprises an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%;
  • the enzyme having serine protease activity comprises an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6;
  • the recombinant Bacillus cereus family member cells comprise cells of Bacillus thuringiensis or Bacillus mycoides.
  • the recombinant Bacillus cereus family member cells are cells of Bacillus thuringiensis BT013A.
  • the at least one insecticide is fluopyram;
  • the targeting sequence comprises an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%;
  • an enzyme having serine protease activity comprising an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6;
  • the recombinant Bacillus cereus family member cells comprise cells of Bacillus thuringiensis or Bacillus mycoides.
  • the recombinant Bacillus cereus family member cells are cells of Bacillus thuringiensis BT013A.
  • the at least one insecticide is clothianidin;
  • the targeting sequence comprises an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%;
  • the enzyme having serine protease activity comprises an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6;
  • the recombinant Bacillus cereus family member cells comprise cells of Bacillus thuringiensis or Bacillus mycoides.
  • the recombinant Bacillus cereus family member cells are cells of Bacillus thuringiensis BT013A.
  • the at least one insecticide is fipronil;
  • the targeting sequence comprises an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%;
  • the enzyme having serine protease activity comprises an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6;
  • the recombinant Bacillus cereus family member cells comprise cells of Bacillus thuringiensis or Bacillus mycoides.
  • the recombinant Bacillus cereus family member cells are cells of Bacillus thuringiensis BT013A.
  • the at least one insecticide is flupyradifurone;
  • the targeting sequence comprises an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%;
  • the enzyme having serine protease activity comprises an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6;
  • the recombinant Bacillus cereus family member cells comprise cells of Bacillus thuringiensis or Bacillus mycoides.
  • the recombinant Bacillus cereus family member cells are cells of Bacillus thuringiensis BT013A.
  • the at least one insecticide is imidacloprid;
  • the targeting sequence comprises an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%;
  • the enzyme having serine protease activity comprises an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6;
  • the recombinant Bacillus cereus family member cells comprise cells of Bacillus thuringiensis or Bacillus mycoides.
  • the recombinant Bacillus cereus family member cells are cells of Bacillus thuringiensis BT013A.
  • the at least one insecticide is methiocarb;
  • the targeting sequence comprises an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%;
  • the enzyme having serine protease activity comprises an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6; and
  • the recombinant Bacillus cereus family member cells comprise cells of Bacillus thuringiensis or Bacillus mycoides.
  • the recombinant Bacillus cereus family member cells are cells of Bacillus thuringiensis BT013A.
  • the at least one insecticide is thiodicarb;
  • the targeting sequence comprises an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%;
  • the enzyme having serine protease activity comprises an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6;
  • the recombinant Bacillus cereus family member cells comprise cells of Bacillus thuringiensis or Bacillus mycoides.
  • the recombinant Bacillus cereus family member cells are cells of Bacillus thuringiensis BT013A.
  • the composition further comprises at least one fungicide.
  • the at least one fungicide may be synthetic.
  • the composition further comprises at least one auxiliary selected from the group consisting of extenders, solvents, spontaneity promoters, carriers, emulsifiers, dispersants, frost protectants, thickeners and adjuvants.
  • the invention is directed to a seed treated with any of the compositions disclosed herein.
  • the present invention relates to use of the disclosed compositions as an insecticide and/or biostimulant.
  • the disclosed compositions are used for reducing overall damage of plants and plant parts as well as losses in harvested fruits or vegetables caused by insects, mites, nematodes and/or phytopathogens.
  • the disclosed compositions are used for enhancing plant growth and/or promoting plant health.
  • the present invention is directed to a method of treating a plant, a plant part, such as a seed, root, rhizome, corm, bulb, or tuber, and/or a locus on which or near which the plant or the plant parts grow, such as soil, to enhance plant growth and/or promote plant health
  • a plant loci a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) an enzyme having serine protease activity, preferably comprising an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6; and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells or exosporium fragments derived from such recombinant exosporium-producing Bacillus cells; and
  • the present invention is a method for reducing overall damage of plants and plant parts as well as losses in harvested fruits or vegetables caused by insects, mites, nematodes and/or phytopathogens comprising the step of simultaneously or sequentially applying to a plant, a plant part, such as a seed, root, rhizome, corm, bulb, or tuber, and/or a locus on which or near which the plant or the plant parts grow, such as soil: a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) an enzyme having serine protease activity, preferably comprising an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5 or an amino acid sequence having at least 95% identity to SEQ ID NO: 6; and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells or exosporium fragments derived from such recombinant exo
  • Bacillus cercus family member refers to any Bacillus species that is capable of producing an exosporium.
  • Bacillus cercus family of bacteria includes the species Bacillus anthracis, Bacillus cercus, Bacillus thuringiensis , Bacillus mycoides, Bacillus pseudomycoides, Bacillus samanii, Bacillus gaemokensis, Bacillus weihenstephensis, and Bacillus toyoiensis.
  • Bacillus cercus family members are also referred to in the art as “Bacillus cercus sensu lato.”
  • foliar used herein with respect to the application of enzymes or recombinant microorganisms to plants means that the enzyme or recombinant microorganism is applied to one or more aerial portions of the plant, including stems, leaves, fruits, flowers, or other exposed aerial portions of the plant.
  • fusion protein refers to a protein having a polypeptide sequence that comprises sequences derived from two or more separate proteins.
  • a fusion protein can be generated by joining together a nucleic acid molecule that encodes all or part of a first polypeptide with a nucleic acid molecule that encodes all or part of a second polypeptide to create a nucleic acid sequence which, when expressed, yields a single polypeptide having functional properties derived from each of the original proteins.
  • a fusion protein may include a polypeptide comprising a combination of polypeptide sequences that would not naturally occur together without human intervention.
  • a fusion protein may include a polypeptide that deviates from polypeptide sequences that exist in nature, a polypeptide that comprises a synthetic polypeptide sequence or a polypeptide expressed by a recombinant DNA sequence that has been incorporated into a host cell by genetic transformation or gene editing.
  • references in this application to an “isolated polypeptide”, “isolated fusion protein”, or an equivalent term or phrase, is intended to mean that the polypeptide or the fusion protein is one that is present alone or in combination with other compositions, but not within its natural environment.
  • a DNA molecule encoding a serine protease or any naturally occurring serine protease variant would be an isolated DNA molecule so long as the nucleotide sequence was not within the DNA of the bacterium from which the sequence encoding the protein is naturally found.
  • a synthetic nucleotide sequence encoding the amino acid sequence of the naturally occurring serine protease would be considered to be isolated for the purposes of this disclosure.
  • any transgenic nucleotide sequence i.e., the nucleotide sequence of the DNA inserted into the genome of the cells of a plant or bacterium, or present in an extrachromosomal vector, would be considered to be an isolated nucleotide sequence whether it is present within the plasmid or similar structure used to transform the cells, within the genome of the plant or bacterium, or present in detectable amounts in tissues, progeny, biological samples or commodity products derived from the plant or bacterium.
  • the term “germination rate” as used herein refers to the number of seeds that germinate during a particular time period. For example, a germination rate of 85% indicates that 85 out of 100 seeds germinate during a given time period.
  • inactivate or “inactivation” as used herein in reference to the inactivation of spores of a recombinant Bacillus cereus family member means that the spores are unable to germinate, or that the spores can germinate, but are damaged such that germination does not result in a living bacterium.
  • partially inactivate or “partial inactivation” mean that a percentage of the spores are inactivated, but that some spores retain the ability to germinate and return to a live, replicating state.
  • genetic inactivation refers to inactivation of spores a recombinant Bacillus cereus family member by a mutation of the spore’s DNA that results in complete or partial inactivation of the spore.
  • physical inactivation and chemical inactivation refer to inactivation of spores using any physical or chemical means, e.g., by heat treatment, gamma irradiation, x-ray irradiation, UV-A irradiation, UV-B irradiation, or treatment with a solvent such as glutaraldehyde, formaldehyde, hydrogen peroxide, acetic acid, bleach, chloroform, phenol, or any combination thereof.
  • mutant sequence refers to an amino acid sequence as it exists in a naturally occurring protein.
  • a “plant growth medium” includes any material that is capable of supporting the growth of a plant.
  • promoting plant growth and “stimulating plant growth” are used interchangeably herein, and refer to the ability to enhance or increase at least one of the plant’s height, weight, leaf size, root size, fruit size, shoot size or stem size, and/or the ability to increase protein yield from the plant, and/or to increase crop yield, and/or to improve plant vigor. For example, this may relate to increased length and/or fresh and/or dry weights of roots and/or shoots of treated plants or crops compared to untreated plants or crops.
  • Increased yield of a plant in particular of an agricultural, silvicultural and/or ornamental plant, means that the yield of a product of the respective plant is increased by a measurable amount over the yield of the same product of the plant produced under the same conditions, but without the application of the compositions disclosed herein.
  • Improved plant vigor includes the following: (a) improved vitality of the plant, (b) improved quality of the plant and/or of the plant products, e.g., enhanced protein content, (c) improved visual appearance, (d) delay of senescence, (e) enhanced root growth and/or more developed root system (e.g., determined by the dry mass of the root), (f) enhanced nodulation, in particular rhizobial nodulation, (g) longer panicles, (h) bigger leaf blade, (i) less dead basal leaves, (j) increased chlorophyll content, (k) prolonged photosynthetically active period, (1) increased or improved plant stand density, (m) less plant verse (lodging), (n) increased plant weight, (o) increased plant height, (p) tillering increase, (q) stronger and/or more productive tillers, (r) less non-productive tillers, (s) enhanced photosynthetic activity and/or enhanced pigment content and thus greener leaf color, (t) earlier and/or improved ger
  • the term “recombinant” as used in reference to the bacteria described herein encompasses bacteria having any genetic modification as compared to wild-type bacteria of the same type, including bacteria that have been modified to delete of a gene or a portion of a gene (e.g., bacteria that have a “knock-out” of a gene), as well as bacteria that have been modified to express an exogenous peptide or protein.
  • Rhizosphere is used interchangeably with “root zone” to denote that segment of the soil that surrounds the roots of a plant and is influenced by them.
  • the term “synergistically effective amount” as used herein refers to an amount of a first substance (e.g., a first enzyme) that when used in combination with a second substance (e.g., a second enzyme) produces a biological effect that is greater than the sum of the biological effects of each of the respective first and second substances when used alone.
  • a first substance e.g., a first enzyme
  • a second substance e.g., a second enzyme
  • targeting sequence refers to a polypeptide sequence that, when present as part of a longer polypeptide or a protein, results in the localization of the longer polypeptide or the protein to a specific subcellular location.
  • the targeting sequences described herein result in localization of proteins to the exosporium of a Bacillus cereus family member.
  • ATCC is the abbreviation for the American Type Culture Collection, International Depository Authority for the Purposes of Depositing Biological Material for the Purposes of Patenting under the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure, having the address ATCC Patent Depository, 10801 University Boulevard, Manassas, Virginia 10110, U.S.A.
  • CBS is the abbreviation for the Centraalbureeau voor Schimmelcultures, an International Depository Authority for the Purposes of Depositing Biological Material for the Purposes of Patenting under the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure, having the address Uppsalalaan 8, Baam/Utrecht, The Netherlands.
  • CGMCC is the abbreviation for the China General Microbiological Culture Collection Cente, an International Depository Authority for the Purposes of Depositing Biological Material for the Purposes of Patenting under the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure, having the address of Institute of Microbiology, Chinese Academy of Sciences, No. 1 Beichen West Road, Chaoyang District, Beijing 100 101.
  • CNCM is the acronym for the Collection Nationale de Cultures de Microorganismes, Institut Pasteur, Paris, France.
  • DSM is the abbreviation for Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH, an International Depositary Authority for the Purposes of Depositing Biological Material for the Purposes of Patenting under the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure, having the address Leibniz Institute DSMZ-German Collection of Microorganisms and Cell Cultures, InhoffenstraBe 7B, 38124 Braunschweig, Germany.
  • IMI is the acronym for CABI Bioscience, Eggham, UK (formerly International Mycological Institute; also known as CMI and CABI).
  • NRRL is the abbreviation for the Agricultural Research Service Culture Collection, International Depository Authority for the Purposes of Deposing Biological Material for the Purposes of Patenting under the Budapest Treaty on the International Recognition of the Deposit of Microorganisms for the Purposes of Patent Procedure, having the address National Center for Agricultural Utilization Research, Agricultural Research Service, U.S. Department of Agriculture, 1815 North University Street, Peoria, Illinois 61604, U.S.A.
  • compositions of the present invention comprise a) recombinant exosporium- producing Bacillus cells that express a fusion protein comprising: (i) an enzyme having serine protease activity from Bacillus firmus; and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells or exosporium fragments derived from such recombinant exosporium-producing Bacillus cells; and b) at least one particular insecticide or biostimulant disclosed herein in a synergistically effective amount.
  • the fusion proteins of the present invention comprise a targeting sequence, exosporium protein, or exosporium protein fragment that targets the fusion protein to the exosporium of a recombinant Bacillus cereus family member.
  • the fusion proteins further comprise an enzyme having serine protease activity. When expressed in Bacillus cereus family member bacteria, these fusion proteins are targeted to the exosporium layer of the spore and are physically oriented such that the serine protease is displayed on the outside of the spore.
  • This Bacillus exosporium display (BEMD) system can be used to deliver the serine protease to plants (e.g., to plant foliage, fruits, flowers, stems, or roots) or to a plant growth medium such as soil. Enzymes and proteins delivered to the soil or another plant growth medium in this manner persist and exhibit activity in the soil for extended periods of time.
  • Introduction of recombinant Bacillus cercus family member bacteria expressing the fusion proteins described herein into soil or the rhizosphere of a plant leads to a beneficial enhancement of plant growth and/or to control pests, such as nematodes, in many different soil conditions.
  • the use of the BEMD to create these enzymes allows them to continue to exert their beneficial results to the plant and the rhizosphere over the first months of a plant’s life.
  • the BEMD system can be modified such that the exosporium of the recombinant Bacillus cercus family member can be removed from the spore, generating exosporium fragments containing the fusion proteins.
  • the exosporium fragments can also be used to deliver the serine proteases to plants in a cell-free preparation.
  • amino acid sequences for the targeting sequences, exosporium proteins, and exosporium protein fragments that can be used for targeting of enzymes or proteins (e.g., enzymes having serine protease activity) to the exosporium of a Bacillus cercus family members, are provided in Table 1 together with their SEQ ID NOs.
  • Bacillus is a genus of rod-shaped bacteria.
  • the Bacillus cercus family of bacteria includes any Bacillus species that is capable of producing an exosporium.
  • Bacillus cercus family of bacteria includes the species Bacillus anthracis, Bacillus cercus, Bacillus thuringiensis , Bacillus mycoides, Bacillus pseudomycoides, Bacillus samanii, Bacillus gaemokensis, Bacillus weihenstephensis, and Bacillus toyoiensis.
  • the outermost layer of the endospores is known as the exosporium and comprises a basal layer surrounded by an external nap of hair-like projections. Filaments on the hair-like nap are predominantly formed by the collagen-like glycoprotein BclA, while the basal layer is comprised of a number of different proteins.
  • Another collagen-related protein, BclB is also present in the exosporium and exposed on endospores of Bacillus cereus family members.
  • BclA the major constituent of the surface nap, has been shown to be attached to the exosporium with its amino-terminus (N-terminus) positioned at the basal layer and its carboxy-terminus (C-terminus) extending outward from the spore.
  • Spores of the B. cereus group are complex, multilayered structures.
  • the nucleoid containing core is enclosed within a peptidoglycan cortex, which is surrounded by the spore coat.
  • Spores of all the B. cereus group species are encircled by an additional loose-fitting layer called the exosporium, which is not present on other species such as Bacillus subtilis, for which the coat constitutes the outermost layer of the mature spore.
  • the exosporium is a balloonlike layer that acts as the outer permeability barrier of the spore and contributes to spore survival and virulence.
  • amino acids 20-35 of BclA from Bacillus anthracis Sterne strain have been found to be sufficient for targeting to the exosporium.
  • a sequence alignment of amino acids 1 ⁇ 41 of BclA (SEQ ID NO: 1) with the corresponding N-terminal regions of several other Bacillus cercus family exosporium proteins and Bacillus cereus family proteins having related sequences is shown in FIGS. 1A and IB of U.S. Patent Application Publication No. 2016/0108096. As can be seen from FIGS. 1A and IB, there is a region of high homology among all of the proteins in the region corresponding to amino acids 20-41 of BclA.
  • amino acids corresponding to amino acids 36 ⁇ 41 of BclA contain secondary structure and are not necessary for fusion protein localization to the exosporium.
  • the conserved targeting sequence region of BclA (amino acids 20-35 of SEQ ID NO: 1) is shown in bold in FIGS. 1A and IB.
  • a more highly conserved region spanning amino acids 25-35 of BclA within the targeting sequence is underlined in the sequences in FIGS. 1A and IB, and is the recognition sequence for ExsFA/BxpB/ExsFB and homologs, which direct and assemble the described proteins on the surface of the exosporium.
  • each of these sequences contains a conserved region corresponding to amino acids 20-35 of BclA (SEQ ID NO: 1; shown in bold), and a more highly conserved region corresponding to amino acids 25-35 of BclA (underlined).
  • BclA which includes amino acids 20-35 can be used as to target a fusion protein to the exosporium.
  • full-length exosporium proteins or exosporium protein fragments can be used for targeting the fusion proteins to the exosporium.
  • full-length BclA or a fragment of BclA that includes amino acids 20-35 can be used for targeting to the exosporium.
  • full length BclA (SEQ ID NO: 3) or a midsized fragment of BclA that lacks the carboxy-terminus such as amino acids 1-196 of BclA or amino acids 1-166 of BclA can be used to target the fusion proteins to the exosporium.
  • the targeting sequence can also comprise much shorter portions of BclA which include amino acids 20-35, such as SEQ ID NO: 1 (amino acids methionine residue linked to amino acids 20-35 of BclA. Even shorter fragments of BclA which include only some of amino acids 20-35 also exhibit the ability to target fusion proteins to the exosporium.
  • the targeting sequence can comprise amino acids 22-31 of SEQ ID NO: 1, amino acids 22-33 of SEQ ID NO: 1, or amino acids 20-31 of SEQ ID NO: 1.
  • any amino acid sequence comprising amino acids 20-35 of BclA can serve as the targeting sequence.
  • the targeting sequence can comprise amino acids 1-35 of SEQ ID NO: 1, amino acids 20-35 of SEQ ID NO: 1, SEQ ID NO: 1, SEQ ID NO: 2, amino acids 22-31 of SEQ ID NO: 1, amino acids 22-33 of SEQ ID NO: 1, or amino acids 20-31 of SEQ ID NO: 1.
  • the targeting sequence can consist of amino acids 1-35 of SEQ ID NO: 1, amino acids 20-35 of SEQ ID NO: 1, or SEQ ID NO: 1.
  • the targeting sequence can consist of amino acids 22-31 of SEQ ID NO: 1, amino acids 22-33 of SEQ ID NO: 1, or amino acids 20-31 of SEQ ID NO: 1.
  • the exosporium protein can comprise full length BclA (SEQ ID NO: 3), or the exosporium protein fragment can comprise a midsized fragment of BclA that lacks the carboxy-terminus, such as amino acids 1-196 of BclA.
  • the targeting sequence can comprise amino acids 2-35 of SEQ ID NO: 1; amino acids 5-35 of SEQ ID NO: 1; amino acids 8-35 of SEQ ID NO: 1; amino acids 10-35 of SEQ ID NO: 1; or amino acids 15-35 of SEQ ID NO: 1.
  • sequences shorter than amino acids 20-35 of BclA can be used to target a fusion protein to the exosporium of a recombinant Bacillus cereus family member.
  • amino acids 20-33 of BclA, amino acids 20-31 of BclA, amino acids 21-33 of BclA, or amino acids 23-31 of BclA can be used to target a fusion protein to the exosporium of a recombinant Bacillus cereus family member.
  • the targeting sequence can consist of amino acids 20-33 of SEQ ID NO: 1, amino acids 20-31 of SEQ ID NO: 1, amino acids 21-33 of SEQ ID NO: 1, or amino acids 23-31 of SEQ ID NO: 1.
  • additional amino acids can be added to the aminoterminus, the carboxy terminus, or both the amino- and carboxy termini to create a targeting sequence that will be effective for targeting a fusion protein to the exosporium of a recombinant Bacillus cereus family member.
  • FIG. 1 lists the percent identity of the corresponding amino acids of each sequence to amino acids 20-35 of BclA (“20-35% Identity”) and to amino acids 25-35 of BclA (“25-35 % Identity”). Sequences having a targeting sequence identity as low as 43.8% with amino acids 20-35 of BclA (SEQ ID NO: 1), wherein the identity with amino acids 25-35 of BclA is 54.5%, retain the ability to target fusion proteins to the exosporium. Data are provided in Table 58 in Example 59 of PCT Publication No. WO 2016/044661, which is incorporated herein by reference in its entirety.
  • Table 58 shows the enzyme levels of phosphatidylcholinespecific phospholipase C gene (PC-PLC) and lipase on Bacillus cereus family member spores expressing fusion proteins containing these enzymes and various targeting sequences with sequence identity to amino acids 20-35 of BclA ranging from 50.0% to 68.8% and with sequence identity to amino acids 25-35 ranging from 63.6% to 81.8%.
  • PC-PLC phosphatidylcholinespecific phospholipase C gene
  • targeting of a protein of interest e.g., an enzyme
  • targeting sequences having 50-68.8% identity to amino acids 20-35 of BclA SEQ ID NO: 1
  • identity to amino acids 25-35 of BclA is 63.6% to 81.8%.
  • Such motif is present in a targeting sequence, exosporium protein, or exosporium protein fragment that targets the fusion protein to the exosporium of the recombinant Bacillus bacterium and comprises the sequence X1-X2-X3-X4-X5-X6-X7-X8-X9-X10- X11-X12-X13-X14-X15-X16, wherein:
  • Xi is any amino acid or absent
  • X2 is phenylalanine (F), leucine (L), isoleucine (I), or methionine (M);
  • X3 is any amino acid
  • X4 is proline (P) or serine (S); X5 is any amino acid;
  • Xe is leucine (L), asparagine (N), serine (S), or isoleucine (I);
  • X7 is valine (V) or isoleucine (I);
  • Xs is glycine (G);
  • X9 is proline (P);
  • X10 is threonine (T) or proline (P);
  • Xn is leucine (L) or phenylalanine (F);
  • X12 is proline (P);
  • X13 is any amino acid
  • X14 is any amino acid
  • X15 is proline (P), glutamine (Q), or threonine (T);
  • Xi6 is proline (P), threonine (T), or serine (S).
  • any of the targeting sequences, exosporuim proteins, or exosporium protein fragments can be used to target any protein or peptide of interest, including the proteins having serine protease activity described herein, to the exosporium of a recombinant Bacillus cereus family member.
  • FIGS. 1A and IB of U.S. Patent Application Publication No. 2016/0108096 list the percent identity of each of the corresponding amino acids of each sequence to amino acids 20-35 of BclA (“20-35% Identity”) and to amino acids 25-35 of BclA (“25-35% Identity”).
  • the corresponding amino acids of BetA/BAS3290 are about 81.3% identical
  • the corresponding amino acids of BAS4623 are about 50.0% identical
  • the corresponding amino acids of BclB are about 43.8% identical
  • the corresponding amino acids of BAS1882 are about 62.5% identical
  • the corresponding amino acids of the KBAB4 2280 gene product are about 81.3% identical
  • the corresponding amino acids of the KBAB4 3572 gene product are about 81.3% identical.
  • the sequence identities over this region for the remaining sequences are listed in FIGS. 1A and IB.
  • the targeting sequence can comprise an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%.
  • the targeting sequence consists of an amino acid sequence consisting of 16 amino acids and having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%.
  • the targeting sequence can also comprise an amino acid sequence having at least about 50% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 63%.
  • the targeting sequence consists of an amino acid sequence consisting of 16 amino acids and having at least about 50% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 63%.
  • the targeting sequence can also comprise an amino acid sequence having at least about 50% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence consists of an amino acid sequence consisting of 16 amino acids and having at least about 50% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence can also comprise an amino acid sequence having at least about 56% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 63%.
  • the targeting sequence consists of an amino acid sequence consisting of 16 amino acids and having at least about 56% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 63%.
  • the targeting sequence can comprise an amino sequence having at least about 62% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence can consist of an amino acid sequence consisting of 16 amino acids and having at least about 62% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 of SEQ ID NO: 1 is at least about 72%.
  • the targeting sequence can comprise an amino acid sequence having at least 68% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence consists of an amino acid sequence consisting of 16 amino acids and having at least 68% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence can also comprises an amino sequence having at least about 75% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence consists of an amino acid sequence consisting of 16 amino acids and having at least about 75% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 of SEQ ID NO: 1 is at least about 72%.
  • the targeting sequence can also comprise an amino sequence having at least about 75% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence consists of an amino acid sequence consisting of 16 amino acids and having at least about 75% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 of SEQ ID NO: 1 is at least about 81%.
  • the targeting sequence can also comprise an amino acid sequence having at least about 81% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence consists of an amino acid sequence consisting of 16 amino acids and having at least about 81% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence can comprise an amino acid sequence having at least about 81% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 90%.
  • the targeting sequence consists of an amino acid sequence consisting of 16 amino acids and having at least about 81% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 90%.
  • targeting sequences can also be used as targeting sequences, so long as the targeting sequence comprises amino acids 20-35 of BclA, the corresponding amino acids of BetA/BAS3290, BAS4263, BclB, BAS 1882, the KBAB4 2280 gene product, or the KBAB 3572 gene product, or a sequence comprising any of the above noted sequence identities to amino acids 20-35 and 25-35 of BclA is present.
  • exosporium proteins having a high degree of sequence identity with any of the full-length exosporium proteins or the exosporium protein fragments described above can also be used to target a peptide or protein to the exosporium of a Bacillus cereus family member.
  • the fusion protein can comprise an exosporium protein or exosporium protein fragment comprising an amino acid sequence having at least 85% identity with SEQ ID NO: 3.
  • the fusion protein can comprise an exosporium protein having at least 90% identity with SEQ ID NO: 3.
  • the fusion protein can comprise an exosporium protein having at least 95% identity with SEQ ID NO: 3.
  • the fusion protein can comprise an exosporium protein having at least 98% identity with SEQ ID NO: 3.
  • the fusion protein can comprise an exosporium protein having at least 99% identity with SEQ ID NO: 3.
  • the fusion protein can comprise an exosporium protein having 100% identity with SEQ ID NO: 3.
  • FIGS. 1A and IB show a sequence alignment of the amino-terminal region of BclA (SEQ ID NO: 1) with the corresponding amino-terminal regions of a number of other Bacillus cereus family member exosporium proteins.
  • BclA SEQ ID NO: 1
  • FIG. 1 shows a conserved motif at amino acids 20-35 of BclA (shown in bold in FIG. 1), with a more highly conserved motif at amino acids 25-35 of BclA (shown in bold and underlined in FIG. 1).
  • This more highly conserved region is the recognition sequence for ExsFA/BxpB/ExsFB and homologs, which direct and assemble the described exosporium proteins on the surface of the exosporium.
  • the targeting motif, exosporium protein, or exosporium protein fragment is recognized by the spore exosporium assembly machinery and directed to the exosporium, resulting in display of the protein or peptide of interest portion of the fusion protein (e.g., the enzyme having serine protease activity) on the outside of the spore.
  • the protein or peptide of interest portion of the fusion protein e.g., the enzyme having serine protease activity
  • the use of different targeting sequences allows for control of the expression level of the fusion protein on the surface of the Bacillus cereus family member spore.
  • Use of certain of the targeting sequences described herein will result in a higher level of expression of the fusion protein, whereas use of others of the targeting sequences will result in lower levels of expression of the fusion protein on the surface of the spore.
  • the targeting sequence, exosporium protein, or exosporium protein fragment can comprise the amino acid sequence GXT at its carboxy terminus, wherein X is any amino acid.
  • the targeting sequence, exosporium protein, or exosporium protein fragment can comprise an alanine residue at the position of the targeting sequence that corresponds to amino acid 20 of SEQ ID NO: 1.
  • the targeting sequence, exosporium protein, or exosporium protein fragment can further comprise a methionine, serine, or threonine residue at the amino acid position immediately preceding the first amino acid of the targeting sequence, exosporium protein, or exosporium protein fragment or at the position of the targeting sequence that corresponds to amino acid 20 of SEQ ID NO: 1.
  • Fusion proteins comprising a targeting sequence, exosporium protein, or exosporium protein fragment that targets the fusion protein to the exosporium of a recombinant Bacillus cereus family member are provided.
  • the fusion proteins further comprise an enzyme having serine protease activity.
  • the fusion protein can comprise: (1) a targeting sequence comprising an amino acid sequence having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%; (2) a targeting sequence comprising amino acids 1-35 of SEQ ID NO: 1; (3) a targeting sequence comprising amino acids 20-35 of SEQ ID NO: 1; (4) a targeting sequence comprising SEQ ID NO: 1; (5) an exosporium protein comprising an amino acid sequence having at least 85% identity with SEQ ID NO: 3; (6) a targeting sequence comprising amino acids 2-35 of SEQ ID NO: 1; (7) a targeting sequence comprising amino acids 5-35 of SEQ ID NO: 1; (8) a targeting sequence comprising amino acids 8-35 of SEQ ID NO: 1; (9) a targeting sequence comprising amino acids 10-35 of SEQ ID NO: 1; (10) a targeting sequence comprising amino acids 15-35 of SEQ ID NO: 1; (1
  • the targeting sequence can comprise an amino acid sequence having at least about 50% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 63%.
  • the targeting sequence can consist of an amino acid sequence having at least about 50% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 63%.
  • the targeting sequence can comprise an amino acid sequence having at least about 50% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence can consist of an amino acid sequence having at least about 50% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence can comprise an amino acid sequence having at least about 56% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 63%.
  • the targeting sequence can consist of an amino acid sequence having at least about 56% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 63%.
  • the targeting sequence can comprise an amino sequence having at least about 62% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence can consist of an amino sequence having at least about 62% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence can comprise an amino acid sequence having at least about 68% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence can consist of an amino acid sequence having at least about 68% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence can comprise an amino sequence having at least about 75% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence can consist of an amino sequence having at least about 75% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 72%.
  • the targeting sequence can comprise an amino sequence having at least about 75% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence can consist of an amino sequence having at least about 75% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence can comprise an amino acid sequence having at least about 81% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence can consist of an amino acid sequence having at least about 81% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 81%.
  • the targeting sequence can comprise an amino acid sequence having at least about 81% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 90%.
  • the targeting sequence can consist of an amino acid sequence having at least about 81% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 90%.
  • the targeting sequence can consist of: (a) an amino acid sequence consisting of 16 amino acids and having at least about 43% identity with amino acids 20-35 of SEQ ID NO: 1, wherein the identity with amino acids 25-35 is at least about 54%; (b) amino acids 1-35 of SEQ ID NO: 1; (c) amino acids 20-35 of SEQ ID NO: 1; (d) SEQ ID NO: 1; (e) SEQ ID NO: 2.
  • the fusion protein can comprise an exosporium protein or an exosporium protein fragment comprising an amino acid sequence having at least 90% identity with SEQ ID NO: 3.
  • the fusion protein can comprise an exosporium protein or an exosporium protein fragment comprising an amino acid sequence having at least 95% identity with SEQ ID NO: 3.
  • the fusion protein can comprise an exosporium protein or an exosporium protein fragment comprising an amino acid sequence having at least 98% identity with SEQ ID NO: 3.
  • the fusion protein can comprise an exosporium protein or an exosporium protein fragment comprising an amino acid sequence having at least 99% identity with SEQ ID NO: 3.
  • the fusion protein can comprise an exosporium protein or an exosporium protein fragment comprising an amino acid sequence having 100% identity with SEQ ID NO: 3.
  • the fusion protein can comprise a targeting sequence, exosporium protein, or exosporium protein fragment that targets the fusion protein to the exosporium of the recombinant Bacillus bacterium, wherein the targeting sequence, exosporium protein, or exosporium protein fragment comprises the sequence X1-X2-X3-X4-X5-X6-X7-X8-X9-X10-X11- X12-X13-X14-X15-X16, wherein:
  • Xi is any amino acid or absent
  • X2 is phenylalanine (F), leucine (L), isoleucine (I), or methionine (M);
  • X3 is any amino acid
  • X4 is proline (P) or serine (S);
  • X5 is any amino acid
  • Xe is leucine (L), asparagine (N), serine (S), or isoleucine (I);
  • X7 is valine (V) or isoleucine (I);
  • Xs is glycine (G);
  • X9 is proline (P);
  • X10 is threonine (T) or proline (P);
  • Xn is leucine (L) or phenylalanine (F);
  • X12 is proline (P);
  • X13 is any amino acid
  • X14 is any amino acid
  • X15 is proline (P), glutamine (Q), or threonine (T);
  • Xi6 is proline (P), threonine (T), or serine (S)
  • the targeting sequence, exosporium protein, or exosporium protein fragment can comprise the amino acid sequence GXT at its carboxy terminus, wherein X is any amino acid.
  • the targeting sequence, exosporium protein, or exosporium protein fragment can comprise an alanine residue at the position of the targeting sequence that corresponds to amino acid 20 of SEQ ID NO: 1.
  • the targeting sequence, exosporium protein, or exosporium protein fragment can further comprise a methionine, serine, or threonine residue at the amino acid position immediately preceding the first amino acid of the targeting sequence, exosporium protein, or exosporium protein fragment or at the position of the targeting sequence that corresponds to amino acid 20 of SEQ ID NO: 1.
  • Fusion proteins comprising a targeting sequence, exosporium protein, or exosporium protein fragment that targets the fusion protein to the exosporium of a recombinant Bacillus cereus family member and an enzyme having serine protease activity are provided.
  • the fusion proteins can comprise an enzyme having serine protease activity.
  • Serine proteases are one of the largest and mostly widely distributed class of proteases. Serine proteases cleave peptide bonds at serine residues within a specific recognition site in a protein. These proteases are frequently used by bacteria for nutrient scavenging in the environment. Serine proteases have also been show to exhibit nematicidal activity through digestion of intestinal tissue in nematodes. Studies of Bacillus firmus strain DS-1, which shows nematicidal activity against Meloidogyne incognita and soybean cyst nematode, revealed that the serine protease produced by that strain has serine protease activity and degraded the intestinal tissues of nematodes.
  • SEQ ID NOs: 4-6 are amino acid sequences for wild-type enzymes and a variant enzyme that exhibit or are predicted to exhibit serine protease activity.
  • SEQ ID NOs: 4 and 5 provide the amino acid sequence for wild-type serine protease enzymes from two different Bacillus firmus strains and have 98% sequence similarity.
  • SEQ ID NO: 6 provides the amino acid sequence for the same enzyme as in SEQ ID NO: 4, except for a deletion of amino acids 181-240 of SEQ ID NO: 4, such that SEQ ID NOs: 4 and 6 have 81% sequence similarity.
  • the catalytic residues referenced in Geng, et al., 2016, above, are maintained in the variant serine protease amino acid sequence of SEQ ID NO: 6.
  • Table 2. Amino Acid Sequences for Serine Protease and Variant
  • the enzyme having serine protease activity can comprise a serine protease from Bacillus firmus, also referred to as a Bacillus firmus serine protease enzyme.
  • the serine protease from Bacillus firmus can be Sepl from a Bacillus firmus strain.
  • the serine protease can be Sepl from Bacillus firmus DS-1, which is SEQ ID NO: 4. See Geng, et al., 2016, above.
  • the serine protease can be Sepl from another Bacillus firmus strain, such as SEQ ID NO: 5.
  • sequence identity or “percent sequence identity” or “% sequence identity” is determined by aligning the entire length of the sequences in such a way as to obtain optimal matching so that the minimal number of edit operations (e.g., inserts, deletions and substitutions) are needed in order to transform the one sequence into an exact copy of the other sequence being aligned.
  • edit operations e.g., inserts, deletions and substitutions
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 80% identity to any one of SEQ ID NOs: 4-5.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 85% identity to any one of SEQ ID NOs: 4-5.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 90% identity to any one of SEQ ID NOs: 4-5.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 95% identity to any one of SEQ ID NOs: 4-5.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 98% identity to any one of SEQ ID NOs: 4-5.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 99% identity to any one of SEQ ID NOs: 4-5.
  • the enzyme having serine protease activity can comprise an amino acid sequence having 100% identity to any one of SEQ ID NOs: 4-5.
  • the enzyme can comprise SEQ ID NOs: 4-5.
  • the enzyme can consist of SEQ ID NOs: 4-5.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least one amino acid deletion relative to the sequence of a wild-type serine protease enzyme from a Bacillus firmus bacterium, wherein the amino acid deletion retains the catalytic residues of the wild-type enzyme and results in the same or increased serine protease activity as compared to the serine protease activity of the wild-type serine protease enzyme under the same conditions.
  • the wild-type serine protease enzyme is Sepl from Bacillus firmus DS-1. See Geng, et al., 2016, above.
  • the enzyme has increased serine protease activity as compared to the serine protease activity of the wild-type serine protease enzyme under the same conditions.
  • amino acid sequence of the enzyme can comprise SEQ ID NO: 6.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 80% identity to SEQ ID NO: 6.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 85% identity to SEQ ID NO: 6.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 90% identity to SEQ ID NO: 6.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 95% identity to SEQ ID NO: 6.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 98% identity to SEQ ID NO: 6.
  • the enzyme having serine protease activity can comprise an amino acid sequence having at least 99% identity to SEQ ID NO: 6.
  • the enzyme having serine protease activity can comprise an amino acid sequence having 100% identity to SEQ ID NO: 6.
  • the enzyme can consist of SEQ ID NO: 6.
  • the enzyme having serine protease activity and having 70%, 75%, 80%, 85%, 90%, 95%, 98%, or 99% sequence identity to SEQ ID NO: 6 maintains the deletion in SEQ ID NO: 6 (of amino acid 181-240 of SEQ ID NO: 5).
  • a fusion protein comprises an enzyme whose native sequence includes a signal peptide
  • the enzyme can be used without the signal peptide.
  • the native signal peptide or another signal peptide
  • the native signal peptide can optionally be included at the amino terminus of the enzyme, immediately preceding the first amino acid of the enzyme sequence.
  • a signal peptide can optionally be included at the amino terminus of the enzymes whose native sequences do not include a signal peptide.
  • the enzyme having serine protease activity can further comprise a signal peptide.
  • the signal peptide is present, it is preferably present at the amino terminus of the enzyme having serine protease activity.
  • the signal peptide preferably immediately precedes the first amino acid of the enzyme having serine protease activity.
  • the fusion protein comprises a signal peptide
  • the signal peptide can be present at the amino terminus of the enzyme having serine protease activity.
  • any of the fusion proteins described herein can be made using standard cloning and molecular biology methods known in the art.
  • a gene encoding a protein or peptide of interest e.g., an enzyme having serine protease activity
  • PCR polymerase chain reaction
  • DNA molecule that encodes the fusion protein can be cloned into any suitable vector, for example a plasmid vector.
  • the vector suitably comprises a multiple cloning site into which the DNA molecule encoding the fusion protein can be easily inserted.
  • the vector also suitably contains a selectable marker, such as an antibiotic resistance gene, such that bacteria transformed, transfected, or mated with the vector can be readily identified and isolated.
  • the vector is a plasmid
  • the plasmid suitably also comprises an origin of replication.
  • DNA coding for the fusion protein can be integrated into the chromosomal DNA of the B. cereus family member or spore- forming bacterium host.
  • any of the fusion proteins described herein can also comprise additional polypeptide sequences that are not part of the targeting sequence, exosporium protein, exosporium protein fragment, or the enzyme having serine protease activity.
  • the fusion protein can include tags or markers to facilitate purification or visualization of the fusion protein (e.g., a polyhistidine tag or a fluorescent protein such as GFP or YFP) or visualization of recombinant Bacillus cereus family member spores expressing the fusion protein.
  • Fusion proteins on the exosporium of a Bacillus cereus family member using the targeting sequences, exosporium proteins, and exosporium protein fragments described herein is enhanced due to a lack of secondary structure in the amino-termini of these sequences, which allows for native folding of the fused proteins and retention of activity. Proper folding can be further enhanced by the inclusion of a short amino acid linker between the targeting sequence, exosporium protein, exosporium protein fragment, spore coat protein, and the enzyme having serine protease activity.
  • any of the fusion proteins described herein can comprise an amino acid linker between the targeting sequence, the exosporium protein, or the exosporium protein fragment and the enzyme having serine protease activity.
  • the linker can comprise a polyalanine linker or a poly glycine linker.
  • a linker comprising a mixture of both alanine and glycine residues can also be used.
  • a fusion protein in a fusion protein where the targeting sequence comprises SEQ ID NO: 1, can have one of the following structures:
  • Glycine Linker SEQ ID NO: 1 -G n -POI
  • a n , G n , and (A/G) n are any number of alanines, any number of glycines, or any number of a mixture of alanines and glycines, respectively.
  • n can be 1 to 25, and is preferably 5 to 10.
  • the linker comprises a mixture of alanine and glycine residues, any combination of glycine and alanine residues can be used.
  • “POI” stands for “protein of interest” and represents the enzyme having serine protease activity.
  • the linker can comprise a protease recognition site. Inclusion of a protease recognition site allows for targeted removal, upon exposure to a protease that recognizes the protease recognition site, of the fusion protein containing the enzyme having serine protease activity.
  • the linker would typically be amino-terminal to the signal peptide.
  • the fusion protein comprises SEQ ID NO: 2, a polyalanine linker, a signal sequence, and the serine protease of SEQ ID NO: 4, these elements would typically be arranged in the following order within the fusion protein, going from the amino-terminus of the fusion protein to the carboxyterminus: SEQ ID NO: 2 - A n -signal sequence-SEQ ID NO: 4.
  • the invention further relates to recombinant Bacillus cereus family members that express a fusion protein.
  • the fusion protein can be any of the fusion proteins described above.
  • the recombinant Bacillus cereus family member can comprise any Bacillus species that is capable of producing an exosporium.
  • the recombinant Bacillus cereus family member can comprise Bacillus anthracis, Bacillus cereus, Bacillus thuringiensis, Bacillus mycoides, Bacillus pseudomycoides, Bacillus samanii, Bacillus gaemokensis, Bacillus weihenstephensis, Bacillus toyoiensis, or a combination of any thereof.
  • the recombinant Bacillus cereus family member suitably comprises Bacillus thuringiensis or Bacillus mycoides.
  • any Bacillus cereus family member can be conjugated, transduced, or transformed with a vector encoding the fusion protein using standard methods known in the art (e.g., by electroporation).
  • the bacteria can then be screened to identify transformants by any method known in the art.
  • the vector includes an antibiotic resistance gene
  • the bacteria can be screened for antibiotic resistance.
  • DNA encoding the fusion protein can be integrated into the chromosomal DNA of a B. cereus family member host.
  • the recombinant Bacillus cereus family member can then exposed to conditions which will induce sporulation. Suitable conditions for inducing sporulation are known in the art.
  • the recombinant Bacillus cereus family member can be plated onto agar plates, and incubated at a temperature of about 30°C for several days (e.g., 3 days).
  • the recombinant Bacillus cereus family member can be in the form of a spore.
  • Inactivated strains non-toxic strains, or genetically manipulated strains of any of the above species can also suitably be used.
  • a Bacillus thuringiensis that lacks the Cry toxin can be used.
  • the recombinant B. cereus family member spores expressing the fusion protein have been generated, they can be inactivated to prevent further germination once in use. Any method for inactivating bacterial spores that is known in the art can be used.
  • Suitable methods include, without limitation, heat treatment, gamma irradiation, x-ray irradiation, UV-A irradiation, UV-B irradiation, chemical treatment (e.g., treatment with glutaraldehyde, formaldehyde, hydrogen peroxide, acetic acid, bleach, or any combination thereof), or a combination thereof.
  • chemical treatment e.g., treatment with glutaraldehyde, formaldehyde, hydrogen peroxide, acetic acid, bleach, or any combination thereof
  • spores derived from nontoxigenic strains, or genetically or physically inactivated strains can be used.
  • the recombinant Bacillus cereus family member can be in the form of a spore, wherein the spore is inactivated.
  • the recombinant Bacillus cereus family member can coexpress two or more of any of the fusion proteins described herein.
  • the recombinant Bacillus cereus family member can coexpress at least one fusion protein that comprises SEQ ID NO: 4 together with a fusion protein that comprises SEQ ID NO: 6.
  • Bacillus cereus family member strains have inherent beneficial attributes. For example, some strains have plant-growth promoting effects. Other strains are endophytic. Some strains are both endophytic and have plant-growth promoting effects.
  • any of the recombinant Bacillus cereus family members described herein can comprise a plant-growth promoting strain of bacteria, an endophytic strain of bacteria, or a strain of bacteria that is both plant-growth promoting and endophytic.
  • the plant-growth promoting strain of bacteria can comprise a strain of bacteria that produces an insecticidal toxin (e.g., a Cry toxin), produces a fungicidal compound (e.g., a P-l,3-glucanase, a chitosanase, a lyticase, or a combination of any thereof), produces a nematocidal compound (e.g., a Cry toxin), produces a bacteriocidal compound, is resistant to one or more antibiotics, comprises one or more freely replicating plasmids, binds to plant roots, colonizes plant roots, forms biofilms, solubilizes nutrients, secretes organic acids, or any combination thereof.
  • an insecticidal toxin e.g., a Cry toxin
  • produces a fungicidal compound e.g., a P-l,3-glucanase, a chitosanase,
  • the recombinant Bacillus cereus family member can comprises an endophytic strain of bacteria.
  • the recombinant Bacillus cereus family member can comprise an inactivating mutation in its BclA gene, its CotE gene, or its CotO gene (e.g., a knock-out of the BclA gene, CotE gene, or CotO gene).
  • the recombinant Bacillus cereus family member can comprise an inactivating mutation in its BclA gene (e.g., a knock-out of the BclA gene). It has been found that expression of fusion proteins in a recombinant Bacillus cereus family member having such a mutation results in increased expression levels of the fusion protein.
  • Compositions of the present invention include cultures, such as whole broth cultures, of the strains described herein.
  • culture refers to a population of cells growing in the absence of other species in a predetermined culture media under controlled laboratory or manufacturing conditions.
  • Biologically pure cultures of the recombinant Bacillus cereus family members of the present invention may be obtained according to methods well known in the art.
  • Conventional large-scale microbial culture processes include submerged fermentation, solid state fermentation, or liquid surface culture. During the fermentation, as nutrients are depleted, cells begin the transition from growth phase to sporulation phase, such that the final product of fermentation is largely spores, metabolites and residual fermentation medium. Sporulation is part of the natural life cycle of Bacillus cereus family members and is generally initiated by the cell in response to stressful environmental conditions, such as nutrient limitation. Fermentation is configured to obtain high levels of colony forming units and to promote sporulation.
  • the bacterial cells, spores and metabolites in culture media resulting from fermentation may be used directly or concentrated by conventional industrial methods, such as centrifugation or filtration such as tangential-flow filtration or depth filtration, and evaporation.
  • compositions of the present invention include the products of the microbial culture processes described herein.
  • the product is referred to as a “fermentation broth” or a “whole broth culture.”
  • Such broth may be concentrated, as described above.
  • the concentrated fermentation broth may be washed, for example, via a diafiltration process, to remove residual fermentation broth and metabolites.
  • broth concentrate refers to fermentation broth that has been concentrated by conventional industrial methods, as described above, but remains in liquid form.
  • fermentation product refers to fermentation broth or whole broth culture, broth concentrate and/or dried fermentation broth or broth concentrate.
  • the fermentation broth or broth concentrate can be dried with or without the addition of carriers using conventional drying processes or methods such as spray drying, freeze drying, tray drying, fluidized-bed drying, drum drying, or evaporation.
  • drying process or methods such as spray drying, freeze drying, tray drying, fluidized-bed drying, drum drying, or evaporation.
  • transfer product refers to fermentation broth or whole broth culture, broth concentrate and/or dried fermentation broth or broth concentrate.
  • the resulting dry products may be further processed, such as by milling or granulation, to achieve a specific particle size or physical format. Carriers, described below, may also be added post-drying.
  • Cell-free preparations of fermentation broth of the strains of the present invention can be obtained by any means known in the art, such as extraction, centrifugation and/or filtration of fermentation broth. Those of skill in the art will appreciate that so-called cell-free preparations may not be devoid of cells but rather are largely cell-free or essentially cell-free, depending on the technique used (e.g., speed of centrifugation) to remove the cells.
  • the resulting cell-free preparation may be dried and/or formulated with components that aid in its application to plants or to plant growth media. Concentration methods and drying techniques described above for fermentation broth are also applicable to cell-free preparations.
  • the recombinant Bacillus cereus family member can comprise a mutation or other modification that allows for collection of exosporium fragments comprising the fusion proteins from spores of the recombinant Bacillus cereus family member.
  • the DNA encoding the fusion proteins used in the recombinant Bacillus cereus family members, exosporium fragments, formulations, plant seeds, and methods, described herein is suitably under the control of a sporulation promoter which will cause expression of the fusion protein on the exosporium of a B. cereus family member endospore (e.g., a native bclA promoter from a B. cereus family member).
  • a sporulation promoter which will cause expression of the fusion protein on the exosporium of a B. cereus family member endospore (e.g., a native bclA promoter from a B. cereus family member).
  • any of the fusion proteins described above can be expressed in the recombinant Bacillus cereus family member under the control of a sporulation promoter that is native to the targeting sequence, exosporium protein, or exosporium protein fragment of the fusion protein, or a portion of such a promoter.
  • Any of the fusion proteins can be expressed under the control of a high- expression sporulation promoter.
  • the high-expression sporulation promoter can comprise a sigma-K sporulation- specific polymerase promoter sequence.
  • nucleotide sequences for promoters that can be used to express any of the fusion proteins in a recombinant Bacillus cereus family member are provided in Table 3 below, together with their SEQ ID NOs.
  • Table 3 also provides illustrative minimal promoter sequences for many of the promoters.
  • sigma-K sporulation- specific polymerase promoter sequences in the promoters are indicated by bold and underlined text.
  • the promoter sequences are immediately upstream of the start codon for each of the indicated genes.
  • the last nucleotide of the promoter sequence immediately precedes the first nucleotide of the start codon for the coding region of the gene encoding the indicated protein.
  • the sigma-K sporulation-specific polymerase promoter sequences in the promoter sequences shown in Table 3 result in high expression levels of the fusion protein during late sporulation.
  • the consensus sequence for the sigma-K sporulation-specific polymerase promoter sequence is CATANNNTN (SEQ ID NO: 14); however, this sequence can comprise up to two mutations and still be functional.
  • the sigma-K sporulation- specific polymerase promoter sequence is generally found upstream of the ribosome binding site (RBS).
  • Promoters having a high degree of sequence identity to any of the sequences shown above in Table 3 can also be used to express the fusion proteins.
  • fusion protein can be expressed under the control of a BclA promoter, a CotY promoter, an ExsY promoter, or a promoter having a high degree of sequence identity to any of these promoters.
  • the fusion protein can be expressed under the control of a promoter comprising a nucleic acid sequence having at least 80% identity with a nucleic acid sequence of any one of SEQ ID NOs: 7, 8, 9, 10, 11, 12, or 13.
  • the fusion protein can be expressed under the control of a promoter comprising a nucleic acid sequence having at least 85% identity with a nucleic acid sequence of any one of SEQ ID NOs: 7, 8, 9, 10, 11, 12, or 13.
  • the fusion protein can be expressed under the control of a promoter comprising a nucleic acid sequence having at least 90% identity with a nucleic acid sequence of any one of SEQ ID NOs: 7, 8, 9, 10, 11, 12, or 13.
  • the fusion protein can be expressed under the control of a promoter comprising a nucleic acid sequence having at least 95% identity with a nucleic acid sequence of any one of SEQ ID NOs: 7, 8, 9, 10, 11, 12, or 13.
  • the fusion protein can be expressed under the control of a promoter comprising a nucleic acid sequence having at least 98% identity with a nucleic acid sequence of any one of SEQ ID NOs: 7, 8, 9, 10, 11, 12, or 13.
  • the fusion protein can be expressed under the control of a promoter comprising a nucleic acid sequence having at least 99% identity with a nucleic acid sequence of any one of SEQ ID NOs: 7, 8, 9, 10, 11, 12, or 13.
  • the fusion protein can be expressed under the control of a promoter comprising a nucleic acid sequence having 100% identity with a nucleic acid sequence of any one of SEQ ID NOs: 7, 8, 9, 10, 11, 12, or 13.
  • the fusion protein can be expressed under the control of a promoter comprising a sigma-K sporulation specific polymerase promoter sequence, wherein the sigma-K sporulation- specific polymerase promoter sequence or sequences have 100% identity with the corresponding nucleotides of any of SEQ ID NOs: 7, 8, 9, 10, 11, 12, or 13.
  • the fusion proteins can be expressed under the control of a promoter that is native to the targeting sequence, exosporium protein, or exosporium protein fragment of the fusion protein.
  • a promoter that is native to the targeting sequence, exosporium protein, or exosporium protein fragment of the fusion protein.
  • the fusion protein can be expressed under the control of a native BclA promoter (e.g., SEQ ID NO: 11, or 12).
  • Table 3 also provides illustrative minimal promoter sequences.
  • the fusion proteins can be expressed under any of these minimal promoter sequences.
  • the fusion protein can be expressed under a portion of any of the promoters listed above in Table 3, so long as the portion of the promoter includes a sigma-K sporulation- specific polymerase promoter sequence.
  • the fusion protein can be expressed under a promoter region that comprises the first 25, 50, 100, 150, 200, 250, or 300 nucleotides upstream of the start codon, so long as that region comprises a sigma-K sporulationspecific polymerase promoter sequence.
  • the recombinant Bacillus cereus family members that express fusion proteins comprising a protein or peptide of interest (e.g., an enzyme having serine protease activity) and a targeting sequence, an exosporium protein, or an exosporium protein fragment that targets the fusion protein to the exosporium of the recombinant Bacillus cereus family member can be used for various purposes, including delivering the proteins or peptides of interest plants, seeds, a plant growth medium, or an area surrounding a seed or a plant (e.g., via soil drench, foliar application, or as a seed treatment).
  • the presence of the living microorganisms may not be desirable, and instead, it would be desirable to separate the living spore from the fusion proteins in the exosporium on the outside surface of the spore.
  • use of exosporium fragments that have been separated from the spores may be preferred over the use of living microorganisms having the enzyme on their exosporium.
  • Mutations or other genetic alterations can be introduced into the recombinant Bacillus cereus family members that allow free exosporium to be separated from spores of the recombinant Bacillus cereus family member. This separation process yields exosporium fragments that contain the fusion proteins but that are substantially free of the spores themselves.
  • substantially free of spores it is meant that once the free exosporium is separated from the spores, a preparation is obtained that contains less than 5% by volume of spores, preferably less than 3% by volume of spores, even more preferably less than 1% by volume of spores, and most preferably contains no spores or if spores are present, they are undetectable.
  • exosporium fragments can be used in place of the recombinant Bacillus cereus family members themselves in any of the formulations, plant seeds, and methods described herein.
  • Exosporium fragments derived from spores of a recombinant Bacillus cereus family member can be used in any of the formulations, plant seeds, and methods described herein.
  • the recombinant Bacillus cereus family member expresses any of the fusion proteins described herein.
  • the recombinant Bacillus cereus family member also comprises a mutation or expresses a protein, wherein the expression of the protein is increased as compared to the expression of the protein in a wild-type Bacillus cereus family member under the same conditions.
  • the mutation or the increased expression of the protein results in Bacillus cereus family member spores having an exosporium that is easier to remove from the spore as compared to the exosporium of a wild-type spore.
  • the recombinant Bacillus cereus family member can comprise a mutation in a CotE gene; (ii) can express an ExsY protein, wherein the expression of the ExsY protein is increased as compared to the expression of the ExsY protein in a wild-type Bacillus cereus family member under the same conditions, and wherein the ExsY protein comprises a carboxy-terminal tag comprising a globular protein; (iii) can express a BclB protein, wherein the expression of the BclB protein is increased as compared to the expression of the BclB protein in a wild- type Bacillus cereus family member under the same conditions; (iv) can express a YjcB protein, wherein the expression of the YjcB protein is increased as compared to the expression of the YjcB protein in a wild-type Bacillus cereus family member under the same conditions; (v) can comprise a mutation in an ExsY gene; (vi) can comprise a mutation in an ExsY
  • the recombinant Bacillus cereus family member can comprise a mutation in the CotE gene, such as a knock-out of the CotE gene or a dominant negative form of the CotE gene.
  • the mutation in the CotE gene can partially or completely inhibit the ability of CotE to attach the exosporium to the spore.
  • the recombinant Bacillus cereus family member can express an ExsY protein.
  • the ExsY protein comprises a carboxy-terminal tag comprising a globular protein (e.g., a green fluorescent protein (GFP) or a variant thereof), and the expression of the ExsY protein is increased as compared to the expression of the ExsY protein in a wild-type Bacillus cereus family member under the same conditions.
  • the globular protein can have a molecular weight of between 25 kDa and 100 kDa. Expression of the ExsY protein comprising the carboxy-terminal tag comprising a globular protein can inhibit binding of the ExsY protein to its targets in the exosporium.
  • the recombinant Bacillus cereus family member can express a BclB protein. Expression of the BclB protein can result in the formation of a fragile exosporium. The expression of the BclB protein can be increased as compared to the expression of the BclB protein in a wild-type Bacillus cereus family member under the same conditions.
  • the recombinant Bacillus cereus family member can express a YjcB protein. Expression of the YjcB protein can cause the exosporium to form in pieces rather than in a complete structure. The expression of the YjcB protein can be increased as compared to the expression of the YjcB protein in a wild-type Bacillus cereus family member under the same conditions.
  • the recombinant Bacillus cereus family member can comprise a mutation an ExsY gene, such as a knock-out of the ExsY gene.
  • the mutation in the ExsY gene can partially or completely inhibit the ability of ExsY to complete the formation of the exosporium or attach the exosporium to the spore.
  • the recombinant Bacillus cereus family member can comprise a mutation a CotY gene, such as a knock-out of the CotY gene.
  • the mutation in the CotY gene can result in the formation of a fragile exosporium.
  • the recombinant Bacillus cereus family member can comprise a mutation an ExsA gene, such as a knock-out of the ExsA gene.
  • the mutation in the ExsA gene can result in the formation of a fragile exosporium.
  • the recombinant Bacillus cereus family member can comprise a mutation a CotO gene, such as a knock-out of the CotO gene or a dominant negative form of the CotO gene.
  • the mutation in the CotO gene can cause the exosporium to form in strips.
  • Exosporium fragments can be prepared from any of these recombinant Bacillus cereus family members and used for various purposes as described further herein below. Where the recombinant Bacillus cereus family member expresses a fusion protein, the exosporium fragments will comprise the fusion proteins. Upon purification of the exosporium fragments that contain the fusion proteins from the spores, a cell-free protein preparation is obtained in which the fusion proteins are stabilized and supported through covalent bonds to the exosporium fragments.
  • a suspension or fermentation broth of the spores can be subjected to centrifugation or filtration to produce fragments of exosporium that are separated from the spores.
  • the exosporium fragments will comprise the fusion protein.
  • a suspension or fermentation broth comprising the spores can be subjected to centrifugation, followed by collection of the supernatant.
  • the supernatant comprises the fragments of the exosporium and is substantially free of spores.
  • a suspension or fermentation broth comprising the spores can be subjected to filtration, followed by collection of the filtrate.
  • the filtrate comprises the fragments of the exosporium and is substantially free of spores.
  • the suspension or fermentation broth of spores can be agitated or mechanically disrupted prior to centrifugation or filtration.
  • the exosporium fragments can also be separated from the spores by gradient centrifugation, affinity purification, or by allowing the spores to settle out of the suspension.
  • the fusion proteins Due to the strong covalent bonds between the fusion proteins and the exosporium fragments, the fusion proteins become resistant to heat. The heat resistance of the fusion proteins bound to the exosporium fragments allows them to be used for applications that require heat-resistant proteins or enzymes.
  • Exosporium fragments derived from a recombinant Bacillus cereus family member are provided.
  • exosporium fragments can be derived from any of the recombinant Bacillus cereus family members that comprise any of the mutations or other genetic alterations described herein that allow for collection of free exosporium.
  • exosporium fragments can comprise any of the fusion proteins described above.
  • composition according to the present invention comprises at least one particular insecticide disclosed herein.
  • Insecticides as well as the term “insecticidal” refers to the ability of a substance to increase mortality or inhibit growth rate of insects.
  • the term “insects” includes all organisms in the class “Insecta”.
  • pre-adult insects refers to any form of an organism prior to the adult stage, including, for example, eggs, larvae, and nymphs.
  • the terms “insecticide” and “insecticidal” also encompass “nematicide” and “nematicidal” and “acaricide” and “acaricidal.”
  • nematodes and “nematicidal” refers to the ability of a substance to increase mortality or inhibit the growth rate of nematodes.
  • nematode comprises eggs, larvae, juvenile and mature forms of said organism.
  • Acaricide and “acaricidal” refers to the ability of a substance to increase mortality or inhibit growth rate of ectoparasites belonging to the class Arachnida, sub-class Acari.
  • the active ingredients specified herein by their “common name” are known and described, for example, in the Pesticide Manual (“The Pesticide Manual”, 14th Ed., British Crop Protection Council 2006) or can be searched in the internet (e.g., http ://www. alanwood.net/pesticides) .
  • insecticides are selected from the group consisting of (1) Acetylcholinesterase (AChE) inhibitors, for example carbamates, e.g., Alanycarb, Aldicarb, Bendiocarb, Benfuracarb, Butocarboxim, Butoxycarboxim, Carbaryl, Carbofuran, Carbosulfan, Ethiofencarb, Fenobucarb, Formetanate, Furathiocarb, Isoprocarb, Methiocarb, Methomyl, Metolcarb, Oxamyl, Pirimicarb, Propoxur, Thiodicarb, Thiofanox, Triazamate, Trimethacarb, XMC and Xylylcarb or organophosphates, e.g., Acephate, Azamethiphos, Azinphos-ethyl, Azinphos-methyl, Cadusafos, Chlorethoxyfo
  • AChE Acetyl
  • GABA-gated chloride channel antagonists for example cyclodiene organochlorines, e.g., Chlordane and Endosulfan, or phenylpyrazoles (fiproles), e.g., Ethiprole and Fipronil;
  • Sodium channel modulators I voltage-dependent sodium channel blockers, for example pyrethroids, e.g,. Acrinathrin, Allethrin, d-cis-trans Allethrin, d- trans Allethrin, Bifenthrin, Bioallethrin, Bioallethrin S-cyclopentenyl isomer, Bioresmethrin, Cycloprothrin, Cyfluthrin, beta-Cyfluthrin, Cyhalothrin, lambda-Cyhalothrin, gamma-Cyhalothrin, Cypermethrin, alpha-Cypermethrin, beta-Cypermethrin, theta-Cypermethrin, zeta-Cypermethrin, Cyphenothrin [(IR)-trans isomers], Deltamethrin, Empenthrin [(EZ)-(IR) isomers), Esfenval
  • Nicotinic acetylcholine receptor (nAChR) allosteric activators for example spinosyns, e.g., Spinetoram and Spinosad;
  • Chloride channel activators for example avermectins/milbemycins, e.g., Abamectin, Emamectin benzoate, Lepimectin and Milbemectin;
  • Juvenile hormone mimics for example juvenile horrnon analogues, e.g., Hydroprene, Kinoprene and Methoprene or Fenoxycarb or Pyriproxyfen;
  • Miscellaneous non-specific (multi-site) inhibitors for example alkyl halides, e.g., Methyl bromide and other alkyl halides; or Chloropicrin or Sulfuryl fluoride or Borax or Tartar emetic;
  • Mite growth inhibitors e.g., Clofentezine, Hexythiazox and Diflovidazin or Etoxazole;
  • Microbial disruptors of insect midgut membranes e.g., Bacillus thuringiensis subspecies israelensis, Bacillus sphaericus, Bacillus thuringiensis subspecies aizawai, Bacillus thuringiensis subspecies kurstaki, Bacillus thuringiensis subspecies tenebrionis and Bt crop proteins: CrylAb, CrylAc, CrylFa, Cry2Ab, mCry3A, Cry3Ab, Cry3Bb, Cry34/35Abl;
  • Inhibitors of mitochondrial ATP synthase for example Diafenthiuron or organotin miticides, e.g., Azocyclotin, Cyhexatin and Fenbutatin oxide or Propargite or Tetradifon;
  • Nicotinic acetylcholine receptor (nAChR) channel blockers for example Bensultap, Cartap hydrochloride, Thiocyclam and Thiosultap-sodium;
  • Inhibitors of chitin biosynthesis type 0, for example Bistrifluron, Chlorfluazuron, Diflubenzuron, Flucycloxuron, Flufenoxuron, Hexaflumuron, Eufenuron, Novaluron, Noviflumuron, Teflubenzuron and Triflumuron;
  • Inhibitors of chitin biosynthesis type 1, for example Buprofezin;
  • Moulting disruptors for example Cyromazine
  • Ecdysone receptor agonists for example Chromafenozide, Halofenozide, Methoxyfenozide and Tebufenozide; [000259] (19) Octopamine receptor agonists, for example Amitraz;
  • Mitochondrial complex III electron transport inhibitors for example Hydramethylnon or Acequinocyl or Fluacrypyrim;
  • Mitochondrial complex I electron transport inhibitors for example METI acaricides, e.g., Fenazaquin, Fenpyroximate, Pyrimidifen, Pyridaben, Tebufenpyrad and Tolfenpyrad or Rotenone (Derris);
  • METI acaricides e.g., Fenazaquin, Fenpyroximate, Pyrimidifen, Pyridaben, Tebufenpyrad and Tolfenpyrad or Rotenone (Derris)
  • Inhibitors of acetyl CoA carboxylase for example tetronic and tetramic acid derivatives, e.g., Spirobudiclofen, Spirodiclofen, Spiromesifen and Spirotetramat;
  • Mitochondrial complex IV electron transport inhibitors for example phosphines, e.g., Aluminium phosphide, Calcium phosphide, Phosphine and Zinc phosphide or Cyanide;
  • phosphines e.g., Aluminium phosphide, Calcium phosphide, Phosphine and Zinc phosphide or Cyanide;
  • Ryanodine receptor modulators for example diamides, e.g., Chlorantraniliprole, Cyantraniliprole, Flubendiamide and Tetrachloroantraniliprole.
  • diamides e.g., Chlorantraniliprole, Cyantraniliprole, Flubendiamide and Tetrachloroantraniliprole.
  • insecticides with unknown or uncertain mode of action are, for example, Afidopyropen, Afoxolaner, Azadirachtin, Benclothiaz, Benzoximate, Bifenazate, Broflanilide, Bromopropylate, Chinomethionat, Cryolite, Cyclobutrifluram, Cyclaniliprole, Cycloxaprid, Cyhalodiamide Dicloromezotiaz, Dicofol, Diflovidazin, Flometoquin, Fluazaindolizine, Fluensulfone, Flufenerim, Flufenoxystrobin, Flufiprole, Fluhexafon, Fluopyram, Fluralaner, Fluxametamide, Fufenozide, Guadipyr, Heptafluthrin, Imidaclothiz, Iprodione, Eotilaner, Meperfluthrin, Paichongding, Pyfluoropen, Af
  • insecticides that are used in the compositions of the present invention are biological products, such as the following.
  • Bacillus thuringiensis subsp. aizawai in particular strain ABTS- 1857 (SD- 1372; e.g., XENTARI® from Valent BioSciences); Bacillus mycoides, isolate J. (e.g., BmJ from Certis USA LLC, a subsidiary of Mitsui & Co.); Bacillus sphaericus, in particular Serotype H5a5b strain 2362 (strain ABTS- 1743) (e.g., VECTOLEX® from Valent BioSciences, US); Bacillus thuringiensis subsp.
  • Bacillus thuringiensis subsp. aizawai in particular serotype H-7 (e.g., FLORBAC® WG from Valent BioSciences, U.S.); Bacillus thuringiensis subsp. kurstaki strain HD-1 (e.g., DIPEL® ES from Valent BioSciences, U.S.); Bacillus thuringiensis subsp.
  • israelensis strain BMP 144 Bacillus thuringiensis israelensis strain BMP 144 (e.g., AQUAB AC® by Becker Microbial Products IL); Burkholderia spp., in particular Burkholderia rinojensis strain A396 (also known as Burkholderia rinojensis strain MBI 305) (Accession No.
  • Beauveria bassiana strain ATCC 74040 (e.g., NATURALIS® from Biofa); Beauveria bassiana strain GHA (Accession No. ATCC74250; e.g., BOTANIGUARD® ES and MYCONTROL-O® from Laverlam International Corporation); Beauveria bassiana strain CG 716 (e.g., BOVEMAX® from Novozymes); Beauveria bassiana strain 147 (e.g., product OSTRINIL®); Beauveria bassiana strain NPP111B005; Beauveria bassiana strain PPRI 5339 (Accession No.
  • NRRL 50757 e.g., VELIFER® and BROADBAND® from BASF SE
  • Beauveria bassiana strain R444 e.g., BB-PROTEC® from Andermatt Biocontrol
  • Metarhizium anisopliae strain F52 (DSM3884/ ATCC 90448; e.g.
  • Met52 by Novozymes Metarhizium anisopliae var acridum strain ARSEF324 (e.g., GREEN MUSCLE® and GREEN GUARD® from BASF SE)); Metarhizium anisopliae var acridum isolate IMI 330189 (ARSEF7486); Isaria fumosorosea strain FE 9901 (e.g., NOFLY® from Koppert); Beauveria brongniartii (e.g., BEAUPRO® from Andermatt Biocontrol AG); Lecanicillium lecanii (formerly known as Verticillium lecanii) strain KV01 (e.g., MYCOTAL® from Koppert); Metarhizium anisopliae 3213-1 (deposited under NRRL accession number 67074) (WO 2017/066094; Pioneer Hi-Bred International).
  • Metarhizium anisopliae 3213-1 deposited under NRRL accession number 6707
  • Bacillus subtilis in particular strain QST713/AQ713 (having NRRL Accession No. B-21661; available as SERENADE® OPTI or SERENADE® ASO from Bayer CropScience LP, US); Bacillus pumilus, in particular strain QST2808 (having Accession No. NRRL No. B-30087).
  • Bacillus firmus in particular, strain CNMC 1-1582 (e.g., VOTIVO® from BASF SE); Bacillus amyloliquefaciens, in particular strain FZB42 (e.g., RHIZOVITAL® from ABiTEP, DE); Bacillus amyloliquefaciens strain PTA-4838 (AVEO EZ® from Valent/Sumitomo; VARNIMO® ST from LidoChem); Bacillus amyloliquefaciens MBI600 and cis-Jasmone (2-Cyclopenten-l-one, 3-methyl-2-(2Z)-2-pentenyl) (TRUNEMCO® from Nufarrn Americas, Inc.); Bacillus cereus, in particular spores of Bacillus cereus strain CNCM 1-1562 (cf.
  • Bacillus laterosporus also known as Brevibacillus laterosporus; e.g., BIO-TODE® from Agro-Organics, ZA); Bacillus megaterium, strain YFM3.25 (e.g., BIO ARC® from BioArc); Bacillus mojavensis, strain SR11 (CECT-7666 by Probelte S.A); Bacillus nematocida B16 (CGMCC Accession No.
  • Bacillus licheniformis FMCH001 and Bacillus subtilis FMCH002 available as QUARTZO® (WG), PRESENCE® (WP) from FMC Corporation
  • Pasteuria nishizawae e.g., OYACYST® LF/ST from Pasteuria Bioscience; CLARIVA® PN from Syngenta/ChemChina
  • Burkholderia rinojensis e.g., strain A396 (also known as Burkholderia rinojensis strain MBI 305) (Accession No.
  • Pasteuria penetrans (formerly Bacillus penetrans', e.g., PASTEURIATM Wettable Powder from Pasteuria Bioscience); Pasteuria usgae (e.g., ECONEMTM from Pasteuria Bioscience); Streptomycete sp., such as Streptomyces lydicus strain WYEC108 (also known as Streptomyces lydicus strain WYCD108US) (ACTINO-IRON® and ACTINOVATE® from Novozymes); Streptomyces saraceticus (e.g., CLANDA® from A & A Group (Agro Chemical Corp.)
  • Myrothecium verrucaria strain AARC-0255 (e.g., DITERATM by Valent Biosciences); Purpureocillium lilacinum strain 580 (BIOSTAT® WP (ATCC No. 38740) by Laverlam), strain in the product BIO-NEMATON® (T.Stanes and Company Ltd.), strain in the product MYSIS® (Varsha Bioscience and Technology India Pvt Ltd.), strain in the product BIOICONEMA® (Nico Orgo Maures, India), strain in the product NEMAT® (Ballagro Agro Tecnologia Ltda, Brazil), and a strain in the product SPECTRUM PAE L® (Promotora Tecnica Industrial, S.A. DE C.V., Mexico).
  • Bio insecticides may also include non-microbial products, such as a terpene blend comrpsing as active ingredients substantially pure a-terpinene, substantially pure p-cymene and substantially pure limonene in a relative ratio of about 35-45:12-20:10-15 (e.g., REQUIEM® by Bayer CropScience LP, U.S.) and a composition comprising one or more fatty acids or derivatives thereof selected from unsaturated and saturated C12-24 fatty acids, salts thereof, esters thereof or mixtures of any of the foregoing, wherein at least 95% of said fatty acids or derivatives thereof are in the rage of C14 to C20 (e.g., FLIPPER® by AlphaBio Pesticides or Bayer AG).
  • non-microbial products such as a terpene blend comrpsing as active ingredients substantially pure a-terpinene, substantially pure p-cymene and substantially pure limonene in a relative ratio of about 35-
  • the composition according to the present invention comprises at least one particular biostimulant disclosed herein.
  • Plant growth promoting active ingredients that can be used in the compositions of the present invention are listed below.
  • Bacillus pumilus in particular strain QST2808 (having Accession No. NRRL No. B-30087); Bacillus subtilis, in particular strain QST713/AQ713 (having NRRL Accession No. B-21661 and described in U.S. Patent No. 6,060,051; available as SERENADE® OPTI or SERENADE® ASO from Bayer CropScience LP); Bacillus subtilis, in particular strain AQ30002 (having Accession Nos. NRRL B-50421 and described in U.S.
  • Patent Application No. 13/330,576 Bacillus subtilis, in particular strain AQ30004 (and NRRL B-50455 and described in U.S. Patent Application No. 13/330,576); Sinorhizobium meliloti strain NRG-185-1 (NITRAGIN® GOLD from Bayer CropScience).
  • Bacillus subtilis strain BU1814 (available as TEQUALIS® from BASF SE); Bacillus subtilis rm303 (RHIZOMAX® from Biofilm Crop Protection); Bacillus amyloliquefaciens pm414 (LOLI-PEPTA® from Biofilm Crop Protection); Bacillus mycoides BT155 (Accession No. NRRL B-50921), Bacillus mycoides EE118 (Accession No. NRRL B- 50918), Bacillus mycoides EE141 (Accession No. NRRL B-50916), Bacillus mycoides BT46-3 (Accession No.
  • NRRL B-50922 Bacillus cereus family member EE128 (Accession No. NRRL B-50917), Bacillus thuringiensis BT013A (Accession No. NRRL B-50924) also known as Bacillus thuringiensis 4Q7, Bacillus cereus family member EE349 (Accession No. NRRL B- 50928), Bacillus amyloliquefaciens SB3281 (Accession No.
  • Bacillus amyloliquefaciens TJ1000 available as QUIKROOTS® from Novozymes
  • Bacillus firmus in particular strain CNMC 1-1582 (e.g., VOTIVO® from BASF SE)
  • Bacillus pumilus in particular strain GB34 (e.g., YIELD SHIELD® from Bayer Crop Science, DE)
  • Bacillus amyloliquefaciens in particular strain IN937a
  • Bacillus amyloliquefaciens, in particular strain FZB42 e.g., RHIZOVITAL® from ABiTEP, DE
  • Bacillus amyloliquefaciens BS27 accesion No.
  • NRRL B-5015 a mixture of Bacillus licheniformis FMCH001 and Bacillus subtilis FMCH002 (available as QUARTZO® (WG), PRESENCE® (WP) from FMC Corporation); Bacillus cereus, in particular strain BP01 (Accession No.
  • ATCC 55675 e.g., MEPICHLOR® from Arysta Lifescience, US
  • Bacillus subtilis in particular strain MBI 600 (e.g., SUBTILEX® from BASF SE); Bradyrhizobium japonicum (e.g., OPTIMIZE® from Novozymes); Mesorhizobium cicer (e.g., NODULATOR® from BASF SE); Rhiz.obium leguminosarium biovar viciae (e.g., NODULATOR® from BASF SE); Delftia acidovorans, in particular strain RAY209 (e.g., BIOBOOST® from Brett Young Seeds); Lactobacillus sp.
  • MBI 600 e.g., SUBTILEX® from BASF SE
  • Bradyrhizobium japonicum e.g., OPTIMIZE® from Novozymes
  • Mesorhizobium cicer e.g., NODULATOR
  • LACTOPLANT® from LactoPAFI
  • Paenibacillus polymyxa in particular strain AC-1 (e.g., TOPSEED® from Green Biotech Company Ltd.); Pseudomonas proradix (e.g., PRORADIX® from Sourcon Padena); Azospirillum brasilense (e.g., VIGOR® from KALO, Inc.); Azospirillum lipoferum (e.g., VERTEX-IFTM from TerraMax, Inc.); a mixture of Azotobacter vinelandii and Clostridium pasteurianum (available as INVIGORATE® from Agrinos).
  • Purpureocillium lilacinum (previously known as Paecilomyces lilacinus) strain 251 (AGAL 89/030550; e.g., BIOACT® DC from Bayer CropScience Biologies GmbH), Penicillium bilaii, strain ATCC 22348 (e.g., JUMPSTART® from Acceleron BioAg), Talaromyces flavus, strain VI 17b; Trichoderma atroviride strain CNCM 1-1237 (e.g., ESQUIVE® WP from Agrauxine, FR), Trichoderma viride, e.g., strain B35 (Pietr et al., 1993, Zesz. Nauk. A R w Szczecinie 161: 125-137).
  • Trichoderma atroviride strain LC52 also known as Trichoderma atroviride strain LU132; e.g., SENTINEL® from Agrimm Technologies Limited
  • Trichoderma atroviride strain SCI having Accession No. CBS 122089, WO 2009/116106 and U.S. Patent No. 8,431,120 (e.g., VINTEC® from Bi-PA);
  • Trichoderma asperellum strain kd e.g., T-GRO® from Andermatt Biocontrol
  • Trichoderma asperellum strain Eco-T Plantt Health Products, ZA
  • Trichoderma harzianum strain T-22 having Accession No.
  • ATCC 20847 e.g., TRIANUM-P® from Andermatt Biocontrol or Koppert
  • Myrothecium verrucaria strain AARC-0255 e.g., DITERATM from Valent Biosciences
  • Penicillium bilaii strain ATCC 20851 Pythium oligandrum strain Ml (ATCC 38472; e.g., POLYVERSUM® from Bioprepraty, CZ)
  • Trichoderma virens strain GL-21 having Accession No. NRRL 15948 (e.g., SOILGARD® from Certis, USA); Verticillium albo-atrum (formerly V. dahliae) strain WCS850 (CBS 276.92; e.g., DUTCH TRIG® from Tree Care Innovations).
  • Abscisic acid and related analogues [e.g., (2Z,4E)-5-[6-Ethynyl-l-hydroxy-2,6- dimethyl-4-oxocyclohex-2-en- 1 -yl] -3-methylpenta-2,4-dienoic acid, methyl-(2Z,4E)-5 - [6-ethynyL 1 - hydroxy-2,6-dimethyl-4-oxocyclohex-2-en-l-yl]-3-methylpenta-2,4-dienoate, (2Z,4E)-3-ethyl-5-(l- hydroxy-2,6,6-trimethyl-4-oxocyclohex-2-en- 1 -yl)penta-2,4-dienoic acid, (2E,4E)-5-( 1 -hydroxy-2, 6,6- trimethyl-4-oxocyclohex-2-en- 1 -yl)-3-(trifluoromethyl
  • Patent No. 5,123,951 5-aminolevulinic acid, ancymidol, 6-benzylaminopurine, bikinin, brassinolide, brassinoli de-ethyl, L- canaline, catechin and catechines (e.g., (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-chromen- 3,5,7-triol), chitooligosaccharides (CO; COs differ from LCOs in that they lack the pendant fatty acid chain that is characteristic of LCOs.
  • catechin and catechines e.g., (2S,3R)-2-(3,4-Dihydroxyphenyl)-3,4-dihydro-2H-chromen- 3,5,7-triol
  • COs differ from LCOs in that they lack the pendant fatty acid chain that is characteristic of LCOs.
  • COs sometimes referred to as N-acetylchitooligosaccharides, are also composed of GlcNAc residues but have side chain decorations that make them different from chitin molecules [(CsHisNOsjn, CAS No. 1398-61-4] and chitosan molecules [(CsHnNO ⁇ n, CAS No.
  • chitinous compounds chlormequat chloride, cloprop, cyclanilide, 3-(Cycloprop-l- enyl)propionic acid, l-[2-(4-cyano-3,5-dicyclopropylphenyl)acetamido]cyclohexanecarboxylic acid, 1- [2-(4-cyano-3-cyclopropylphenyl)acetamido]cyclohexanecarboxylic acid, daminozide, dazomet, dazomet- sodium, n-decanol, dikegulac, dikegulac-sodium, endothal, endothal-dipotassium, -disodium, and mono(N,N-dimethylalkylammonium), ethephon, flumetralin, flurenol, flurenol-butyl, flurenol- methyl, flurprimidol, forchlorfenuron,
  • LCOs differ in the number of GlcNAc residues in the backbone, in the length and degree of saturation of the fatty acyl chain and in the substitutions of reducing and non-reducing sugar residues), linoleic acid or derivatives thereof, linolenic acid or derivatives thereof, maleic hydrazide, mepiquat chloride, mepiquat pentaborate, 1- methylcyclopropene, 3 -methylcyclopropene, 1 -ethylcyclopropene, 1-n-propylcyclopropene, 1- cyclopropenylmethanol, methoxyvinylglycin (MVG), 3’ -methyl abscisic acid, l-(4-methylphenyl)-N-(2- oxo-l-propyl-l,2,3,4-tetrahydroquinolin-6-yl)methanesulfonamide and related substituted tetrahydroquinolin
  • the composition comprises a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) at least one plant growth stimulating protein or peptide selected from the group consisting of an enzyme involved in the production or activation of a plant growth stimulating compound; an enzyme that degrades or modifies a bacterial, fungal, or plant nutrient source; and a protein or peptide that protects a plant from a pathogen; and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells; and b) at least one particular insecticide disclosed herein in a synergistically effective amount.
  • a “synergistically effective amount” represents a quantity of a combination of a recombinant exosporium-producing Bacillus cells that express a fusion protein and at least one insecticide as described herein that is more effective against insects, mites, nematodes and/or phytopathogens than a recombinant exosporium-producing Bacillus cells that express a fusion protein or the insecticide alone.
  • a “synergistically effective amount” according to the present invention also represents a quantity of a combination of a recombinant exosporium-producing Bacillus cells that expresses a fusion protein and at least one particular insecticide disclosed herein that is more effective at enhancing plant growth and/or promoting plant health than the a recombinant exosporium-producing Bacillus cells that express a fusion protein or the insecticide alone.
  • the present invention comprises each and every combination of each of the particular insecticides and/or plant growth promoting active ingredients (i.e., biostimulants) disclosed herein with the recombinant exosporium-producing Bacillus cells.
  • active ingredients i.e., biostimulants
  • the present invention relates to a composition
  • a composition comprising: a) recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) an enzyme with serine protease activity from Bacillus firmus, preferably having an amino acid sequence with at least 95% identity to SEQ ID NOs: 4-6 or exosporium fragments derived from such recombinant exosporium-producing Bacillus cells and (ii) a targeting sequence that localizes the fusion protein to the exosporium of the Bacillus cells; and b) at least one particular insecticide disclosed herein in a synergistically effective amount and the at least one insecticide is selected from the group consisting of acetamiprid, aldicarb, amitraz, beta-cyfluthrin, carbaryl, clothianidin, cyfluthrin, cypermethrin, deltamethrin, endosulfan, ethion,
  • fungicidal means the ability of a substance to increase mortality or inhibit the growth rate of fungi.
  • the term “fungus” or “fungi” includes a wide variety of nucleated sporebearing organisms that are devoid of chlorophyll. Examples of fungi include yeasts, molds, mildews, rusts, and mushrooms.
  • One aspect of the present invention is to provide a composition as described above additionally comprising at least one auxiliary selected from the group consisting of extenders, solvents, spontaneity promoters, carriers, emulsifiers, dispersants, frost protectants, thickeners and adjuvants.
  • auxiliary selected from the group consisting of extenders, solvents, spontaneity promoters, carriers, emulsifiers, dispersants, frost protectants, thickeners and adjuvants.
  • formulations are referred to as formulations.
  • such formulations, and application forms prepared from them are provided as crop protection agents and/or pesticidal agents, such as drench, drip and spray liquors, comprising the composition of the invention.
  • the application forms may comprise further crop protection agents and/or pesticidal agents, and/or activity-enhancing adjuvants such as penetrants, examples being vegetable oils such as, for example, rapeseed oil, sunflower oil, mineral oils such as, for example, liquid paraffins, alkyl esters of vegetable fatty acids, such as rapeseed oil or soybean oil methyl esters, or alkanol alkoxylates, and/or spreaders such as, for example, alkylsiloxanes and/or salts, examples being organic or inorganic ammonium or phosphonium salts, examples being ammonium sulphate or diammonium hydrogen phosphate, and/or retention promoters such as dioctyl sulphosuccinate or hydroxyprop
  • Examples of typical formulations include water-soluble liquids (SL), emulsifiable concentrates (EC), emulsions in water (EW), suspension concentrates (SC, SE, FS, OD), water-dispersible granules (WG), granules (GR) and capsule concentrates (CS); these and other possible types of formulation are described, for example, by Crop Life International and in Pesticide Specifications, Manual on Development and Use of FAO and WHO Specifications for Pesticides, FAO Plant Production and Protection Papers - 173, prepared by the FAO/WHO Joint Meeting on Pesticide Specifications, 2004, ISBN: 9251048576.
  • the formulations may comprise active agrochemical compounds other than one or more active compounds of the invention.
  • the formulations or application forms in question preferably comprise auxiliaries, such as extenders, solvents, spontaneity promoters, carriers, emulsifiers, dispersants, frost protectants, biocides, thickeners and/or other auxiliaries, such as adjuvants, for example.
  • auxiliaries such as extenders, solvents, spontaneity promoters, carriers, emulsifiers, dispersants, frost protectants, biocides, thickeners and/or other auxiliaries, such as adjuvants, for example.
  • An adjuvant in this context is a component which enhances the biological effect of the formulation, without the component itself having a biological effect.
  • adjuvants are agents which promote the retention, spreading, attachment to the leaf surface, or penetration.
  • formulations are produced in a known manner, for example by mixing the active compounds with auxiliaries such as, for example, extenders, solvents and/or solid carriers and/or further auxiliaries, such as, for example, surfactants.
  • auxiliaries such as, for example, extenders, solvents and/or solid carriers and/or further auxiliaries, such as, for example, surfactants.
  • the formulations are prepared either in suitable plants or else before or during the application.
  • auxiliaries are substances which are suitable for imparting to the formulation of the active compound or the application forms prepared from these formulations (such as, e.g., usable crop protection agents, such as spray liquors or seed dressings) particular properties such as certain physical, technical and/or biological properties.
  • Suitable extenders are, for example, water, polar and nonpolar organic chemical liquids, for example from the classes of the aromatic and non-aromatic hydrocarbons (such as paraffins, alkylbenzenes, alkylnaphthalenes, chlorobenzenes), the alcohols and polyols (which, if appropriate, may also be substituted, etherified and/or esterified), the ketones (such as acetone, cyclohexanone), esters (including fats and oils) and (poly)ethers, the unsubstituted and substituted amines, amides, lactams (such as N-alkylpyrrolidones) and lactones, the sulphones and sulphoxides (such as dimethyl sulphoxide).
  • aromatic and non-aromatic hydrocarbons such as paraffins, alkylbenzenes, alkylnaphthalenes, chlorobenzenes
  • the alcohols and polyols
  • suitable liquid solvents are: aromatics such as xylene, toluene or alkylnaphthalenes, chlorinated aromatics and chlorinated aliphatic hydrocarbons such as chlorobenzenes, chloroethylenes or methylene chloride, aliphatic hydrocarbons such as cyclohexane or paraffins, for example petroleum fractions, mineral and vegetable oils, alcohols such as butanol or glycol and also their ethers and esters, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, strongly polar solvents such as dimethylformamide and dimethyl sulphoxide, and also water.
  • aromatics such as xylene, toluene or alkylnaphthalenes
  • chlorinated aromatics and chlorinated aliphatic hydrocarbons such as chlorobenzenes, chloroethylenes or methylene chloride
  • aliphatic hydrocarbons
  • Suitable solvents are, for example, aromatic hydrocarbons, such as xylene, toluene or alkylnaphthalenes, for example, chlorinated aromatic or aliphatic hydrocarbons, such as chlorobenzene, chloroethylene or methylene chloride, for example, aliphatic hydrocarbons, such as cyclohexane, for example, paraffins, petroleum fractions, mineral and vegetable oils, alcohols, such as methanol, ethanol, isopropanol, butanol or glycol, for example, and also their ethers and esters, ketones such as acetone, methyl ethyl ketone, methyl isobutyl ketone or cyclohexanone, for example, strongly polar solvents, such as dimethyl sulphoxide, and water.
  • aromatic hydrocarbons such as xylene, toluene or alkylnaphthalenes
  • chlorinated aromatic or aliphatic hydrocarbons such as chloro
  • Suitable carriers are in particular: for example, ammonium salts and ground natural minerals such as kaolins, clays, talc, chalk, quartz, attapulgite, montmorillonite or diatomaceous earth, and ground synthetic minerals, such as finely divided silica, alumina and natural or synthetic silicates, resins, waxes and/or solid fertilizers. Mixtures of such carriers may likewise be used.
  • Carriers suitable for granules include the following: for example, crushed and fractionated natural minerals such as calcite, marble, pumice, sepiolite, dolomite, and also synthetic granules of inorganic and organic meals, and also granules of organic material such as sawdust, paper, coconut shells, maize cobs and tobacco stalks.
  • Liquefied gaseous extenders or solvents may also be used. Particularly suitable are those extenders or carriers which at standard temperature and under standard pressure are gaseous, examples being aerosol propellants, such as halogenated hydrocarbons, and also butane, propane, nitrogen and carbon dioxide.
  • Examples of emulsifiers and/or foam-formers, dispersants or wetting agents having ionic or nonionic properties, or mixtures of these surface-active substances are salts of polyacrylic acid, salts of lignosulphonic acid, salts of phenolsulphonic acid or naphthalenesulphonic acid, polycondensates of ethylene oxide with fatty alcohols or with fatty acids or with fatty amines, with substituted phenols (preferably alkylphenols or arylphenols), salts of sulphosuccinic esters, taurine derivatives (preferably alkyltaurates), phosphoric esters of polyethoxylated alcohols or phenols, fatty acid esters of polyols, and derivatives of the compounds containing sulphates, sulphonates and phosphates, examples being alkylaryl polyglycol ethers, alkylsulphonates, alkyl sulphates, arylsulphonates, protein
  • auxiliaries that may be present in the formulations and in the application forms derived from them include colorants such as inorganic pigments, examples being iron oxide, titanium oxide, Prussian Blue, and organic dyes, such as alizarin dyes, azo dyes and metal phthalocyanine dyes, and nutrients and trace nutrients, such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.
  • colorants such as inorganic pigments, examples being iron oxide, titanium oxide, Prussian Blue
  • organic dyes such as alizarin dyes, azo dyes and metal phthalocyanine dyes
  • nutrients and trace nutrients such as salts of iron, manganese, boron, copper, cobalt, molybdenum and zinc.
  • Stabilizers such as low-temperature stabilizers, preservatives, antioxidants, light stabilizers or other agents which improve chemical and/or physical stability may also be present. Additionally present may be foam-formers or defoamers.
  • the formulations and application forms derived from them may also comprise, as additional auxiliaries, stickers such as carboxymethylcellulose, natural and synthetic polymers in powder, granule or latex form, such as gum arabic, polyvinyl alcohol, polyvinyl acetate, and also natural phospholipids, such as cephalins and lecithins, and synthetic phospholipids.
  • additional auxiliaries include mineral and vegetable oils.
  • auxiliaries there may possibly be further auxiliaries present in the formulations and the application forms derived from them.
  • additives include fragrances, protective colloids, binders, adhesives, thickeners, thixotropic substances, penetrants, retention promoters, stabilizers, sequestrants, complexing agents, humectants and spreaders.
  • the active compounds may be combined with any solid or liquid additive commonly used for formulation purposes.
  • Suitable retention promoters include all those substances which reduce the dynamic surface tension, such as dioctyl sulphosuccinate, or increase the viscoelasticity, such as hydroxypropylguar polymers, for example.
  • Suitable penetrants in the present context include all those substances which are typically used in order to enhance the penetration of active agrochemical compounds into plants.
  • Penetrants in this context are defined in that, from the (generally aqueous) application liquor and/or from the spray coating, they are able to penetrate the cuticle of the plant and thereby increase the mobility of the active compounds in the cuticle. This property can be determined using the method described in the literature (Baur, et al., 1997, Pesticide Science, 51, 131-152).
  • Examples include alcohol alkoxy lates such as coconut fatty ethoxylate (10) or isotridecyl ethoxylate (12), fatty acid esters such as rapeseed or soybean oil methyl esters, fatty amine alkoxylates such as tallowamine ethoxylate (15), or ammonium and/or phosphonium salts such as ammonium sulphate or diammonium hydrogen phosphate, for example.
  • alcohol alkoxy lates such as coconut fatty ethoxylate (10) or isotridecyl ethoxylate (12)
  • fatty acid esters such as rapeseed or soybean oil methyl esters
  • fatty amine alkoxylates such as tallowamine ethoxylate (15)
  • ammonium and/or phosphonium salts such as ammonium sulphate or diammonium hydrogen phosphate, for example.
  • the formulations preferably comprise between 0.0001% and 98% by weight of active compound or, with particular preference, between 0.01% and 95% by weight of active compound, more preferably between 0.5% and 90% by weight of active compound, based on the weight of the formulation.
  • the content of the active compound is defined as the sum of the recombinant exosporium-producing Bacillus cells and the at least one particular insecticide disclosed herein.
  • the active compound content of the application forms (crop protection products) prepared from the formulations may vary within wide ranges.
  • the active compound concentration of the application forms may be situated typically between 0.0001% and 95% by weight of active compound, preferably between 0.0001% and 1% by weight, based on the weight of the application form. Application takes place in a customary manner adapted to the application forms.
  • kits of parts comprising a recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and at least one particular insecticide disclosed herein in a synergistically effective amount in a spatially separated arrangement.
  • the above-mentioned kit of parts further comprises at least one additional fungicide and/or at least one particular insecticide disclosed herein.
  • the fungicide and/or the insecticide can be present either in the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom component of the kit of parts or in the insecticide component of the kit of parts being spatially separated or in both of these components.
  • the fungicide and/or the insecticide are present in the recombinant exosporium-producing Bacillus cells or exosporium fragments component.
  • the kit of parts according to the present invention can additionally comprise at least one auxiliary selected from the group consisting of extenders, solvents, spontaneity promoters, carriers, emulsifiers, dispersants, frost protectants, thickeners and adjuvants as mentioned below.
  • This at least one auxiliary can be present either in the recombinant exosporium-producing Bacillus cells or exosporium fragment component of the kit of parts or in the insecticide component of the kit of parts being spatially separated or in both of these components.
  • composition as described above is used for reducing overall damage of plants and plant parts as well as losses in harvested fruits or vegetables caused by insects, mites, nematodes and/or phytopathogens.
  • composition as described above increases the overall plant health.
  • plant health generally comprises various sorts of improvements of plants that are not connected to the control of pests.
  • advantageous properties are improved crop characteristics including: emergence, crop yields, protein content, oil content, starch content, more developed root system, improved root growth, improved root size maintenance, improved root effectiveness, improved stress tolerance (e.g., against drought, heat, salt, UV, water, cold), reduced ethylene (reduced production and/or inhibition of reception), tillering increase, increase in plant height, bigger leaf blade, less dead basal leaves, stronger tillers, greener leaf color, pigment content, photosynthetic activity, less input needed (such as fertilizers or water), less seeds needed, more productive tillers, earlier flowering, early grain maturity, less plant verse (lodging), increased shoot growth, enhanced plant vigor, increased plant stand and early and better germination.
  • improved stress tolerance e.g., against drought, heat, salt, UV, water, cold
  • reduced ethylene reduced production and/or inhibition of reception
  • tillering increase, increase in plant height, bigger leaf blade, less dead basal
  • improved plant health preferably refers to improved plant characteristics including: crop yield, more developed root system (improved root growth), improved root size maintenance, improved root effectiveness, tillering increase, increase in plant height, bigger leaf blade, less dead basal leaves, stronger tillers, greener leaf color, photosynthetic activity, more productive tillers, enhanced plant vigor, and increased plant stand.
  • improved plant health preferably especially refers to improved plant properties selected from crop yield, more developed root system, improved root growth, improved root size maintenance, improved root effectiveness, tillering increase, and increase in plant height.
  • composition according to the present invention on plant health as defined herein can be determined by comparing plants which are grown under the same environmental conditions, whereby a part of said plants is treated with a composition according to the present invention and another part of said plants is not treated with a composition according to the present invention.
  • said other part is not treated at all or treated with a placebo (i.e., an application without a composition according to the invention such as an application without all active ingredients (i.e., without the recombinant exosporium-producing Bacillus cereus family member-based biological control agent as described herein and without an insecticide as described herein), or an application without the recombinant exosporium- producing Bacillus cereus family member-based biological control agent as described herein, or an application without an insecticide as described herein.
  • a placebo i.e., an application without a composition according to the invention such as an application without all active ingredients (i.e., without the recombinant exosporium-producing Bacillus cereus family member-based biological control agent as described herein and without an insecticide as described herein), or an application without the recombinant exosporium- producing Bacillus cereus family member-based biological control agent as described herein, or an application without an insecticide as described herein.
  • composition according to the present invention may be applied in any desired manner, such as in the form of a seed coating, soil drench, and/or directly in-furrow and/or as a foliar spray and applied either pre-emergence, post-emergence or both.
  • the composition can be applied to the seed, the plant or to harvested fruits and vegetables or to the soil wherein the plant is growing or wherein it is desired to grow (plant’s locus of growth).
  • composition according to the present invention is used for treating conventional or transgenic plants or seed thereof.
  • the present invention also relates to methods for stimulating plant growth using any of the compositions described above comprising recombinant exosporium-producing Bacillus cells that express a fusion protein and at least one particular insecticide disclosed herein.
  • the method for stimulating plant growth comprises applying to a plant, a plant part, to the locus surrounding the plant or in which the plant will be planted (e.g., soil or other growth medium) a composition comprising recombinant exosporium-producing Bacillus cells that express a fusion protein comprising: (i) at least one plant growth stimulating protein or peptide; and (ii) a targeting sequence, exosporium protein, or exosporium protein fragment, and at least one further particular insecticide disclosed herein in a synergistically effective amount.
  • a method for reducing overall damage of plants and plant parts as well as losses in harvested fruits or vegetables caused by insects, mites, nematodes and/or phytopathogens comprising the step of simultaneously or sequentially applying the recombinant exosporium-producing Bacillus cells and at least one particular insecticide disclosed herein in a synergistically effective amount.
  • the composition comprises at least one fungicide and/or at least one insecticide in addition to the recombinant exosporium- producing Bacillus cells or exosporium fragments derived therefrom and the particular insecticide disclosed herein.
  • the at least one fungicide is a synthetic fungicide.
  • the method of the present invention includes the following application methods, namely both of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and the at least one particular insecticide disclosed herein may be formulated into a single, stable composition with an agriculturally acceptable shelf life (so called “solo-formulation”), or being combined before or at the time of use (so called “combined- formulations”).
  • the expression “combination” stands for the various combinations of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and the at least insecticide, and optionally the at least one fungicide, in a solo-formulation, in a single “ready-mix” form, in a combined spray mixture composed from solo-formulations, such as a “tank-mix”, and especially in a combined use of the single active ingredients when applied in a sequential manner, i.e., one after the other within a reasonably short period, such as a few hours or days, e.g., 2 hours to 7 days.
  • the order of applying the composition according to the present invention is not essential for working the present invention.
  • the term “combination” also encompasses the presence of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and the at least one particular insecticide disclosed herein, and optionally the at least one fungicide on or in a plant to be treated or its surrounding, habitat or storage space, e.g., after simultaneously or consecutively applying the recombinant exosporium-producing Bacillus cells and the at least one particular insecticide disclosed herein, and optionally the at least one fungicide to a plant its surrounding, habitat or storage space.
  • the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and the at least one particular insecticide disclosed herein, and optionally the at least one fungicide are employed or used in a sequential manner, it is preferred to treat the plants or plant parts (which includes seeds and plants emerging from the seed), harvested fruits and vegetables according to the following method: Firstly applying the at least one particular insecticide disclosed herein and optionally the at least one fungicide and/or the at least one additional insecticide on the plant or plant parts, and secondly applying the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom to the same plant or plant parts.
  • the time periods between the first and the second application within a (crop) growing cycle may vary and depend on the effect to be achieved.
  • the first application is done to prevent an infestation of the plant or plant parts with insects, mites, nematodes and/or phytopathogens (this is particularly the case when treating seeds) or to combat the infestation with insects, mites, nematodes and/or phytopathogens (this is particularly the case when treating plants and plant parts)
  • the second application is done to prevent or control the infestation with insects, mites, nematodes and/or phytopathogens and/or to promote plant growth.
  • Control in this context means that the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom are not able to fully exterminate the pests or phytopathogenic fungi but are able to keep the infestation on an acceptable level.
  • the present invention also provides methods of enhancing the killing, inhibiting, preventative and/or repelling activity of the compositions of the present invention by multiple applications.
  • the compositions of the present invention are applied to a plant and/or plant part for two times, during any desired development stages or under any predetermined pest pressure, at an interval of about 1 hour, about 5 hours, about 10 hours, about 24 hours, about two days, about 3 days, about 4 days, about 5 days, about 1 week, about 10 days, about two weeks, about three weeks, about 1 month or more.
  • compositions of the present invention are applied to a plant and/or plant part for more than two times, for example, 3 times, 4 times, 5 times, 6 times, 7 times, 8 times, 9 times, 10 times, or more, during any desired development stages or under any predetermined pest pressure, at an interval of about 1 hour, about 5 hours, about 10 hours, about 24 hours, about 2 days, about 3 days, about 4 days, about 5 days, about 1 week, about 10 days, about 2 weeks, about 3 weeks, about 1 month or more.
  • the intervals between each application can vary if it is desired.
  • One skilled in the art will be able to determine the application times and length of interval depending on plant species, plant pest species, and other factors.
  • harvested fruits and vegetables with the composition according to the invention is carried out directly or by action on their surroundings, habitat or storage space using customary treatment methods, for example dipping, spraying, atomizing, irrigating, evaporating, dusting, fogging, broadcasting, foaming, painting, spreading- on, watering (drenching), drip irrigating.
  • customary treatment methods for example dipping, spraying, atomizing, irrigating, evaporating, dusting, fogging, broadcasting, foaming, painting, spreading- on, watering (drenching), drip irrigating.
  • plant to be treated encompasses every part of a plant including its root system and the material - e.g., soil or nutrition medium - which is in a radius of at least 10 cm, 20 cm, 30 cm around the caulis or bole of a plant to be treated or which is at least 10 cm, 20 cm, 30 cm around the root system of said plant to be treated, respectively.
  • material - e.g., soil or nutrition medium - which is in a radius of at least 10 cm, 20 cm, 30 cm around the caulis or bole of a plant to be treated or which is at least 10 cm, 20 cm, 30 cm around the root system of said plant to be treated, respectively.
  • the amount of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom which is used or employed in combination with at least one particular insecticide disclosed herein, optionally in the presence of at least one fungicide, depends on the final formulation as well as size or type of the plant, plant parts, seeds, harvested fruits and vegetables to be treated.
  • the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom to be employed or used according to the invention is present in about 1% to about 80% (w/w), preferably in about 1% to about 60% (w/w), more preferably about 10% to about 50% (w/w) of its solo-formulation or combined- formulation with the at least one particular insecticide disclosed herein, and optionally the fungicide.
  • the amount of the at least one particular insecticide disclosed herein which is used or employed in combination with the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom, optionally in the presence of at least one fungicide depends on the final formulation as well as size or type of the plant, plant parts, seeds, harvested fruit or vegetable to be treated.
  • the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom to be employed or used according to the invention is present in about 0.1% to about 80% (w/w), preferably 1% to about 60% (w/w), more preferably about 10% to about 50% (w/w) of its solo-formulation or combined-formulation with the at least one particular insecticide disclosed herein, and optionally the at least one fungicide.
  • Application of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom may be effected as a foliar spray, as a soil treatment, and/or as a seed treatment/dressing.
  • a foliar treatment in one embodiment, about 1/16 to about 5 gallons of whole broth are applied per acre.
  • soil treatment in one embodiment, about 1 to about 5 gallons of whole broth are applied per acre.
  • When used for seed treatment about 1/32 to about 1/4 gallons of whole broth are applied per acre.
  • the end-use formulation contains 1 x 10 3 , 1 x 10 4 , at least 1 x 10 5 , at least 1 x 10 6 , 1 x 10 7 , at least 1 x 10 8 , at least 1 x 10 9 , or at least 1 x 10 10 colony forming units per gram.
  • the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and at least one particular insecticide disclosed herein, and if present preferably also the fungicide are used or employed in a synergistic weight ratio.
  • the skilled person is able to find out the synergistic weight ratios for the present invention by routine methods. The skilled person understands that these ratios refer to the ratio within a combined- formulation as well as to the calculative ratio of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom described herein and the at least one particular insecticide disclosed herein when both components are applied as mono-formulations to a plant to be treated.
  • the ratio can be calculated based on the amount of the at least one particular insecticide disclosed herein, at the time point of applying said component of a combination according to the invention to a plant or plant part and the amount of recombinant exosporium- producing Bacillus cells or exosporium fragments derived therefrom shortly prior (e.g., 48 h, 24 h, 12 h, 6 h, 2 h, 1 h) or at the time point of applying said component of a combination according to the invention to a plant or plant part.
  • the skilled person can determine the concentration of insecticide on/in a plant by chemical analysis known in the art, at the time point or shortly before the time point of applying the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom.
  • the concentration of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom can be determined using tests which are also known in the art, at the time point or shortly before the time point of applying the insecticide.
  • the synergistic weight ratio of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and the at least one particular insecticide disclosed herein lies in the range of 1:1000 to 1000:1, preferably in the range of 1:500 to 500:1, more preferably in the range of 1:300 to 500:1. Especially preferred ratios are between 20:1 and 1:20, such as 10:1, 5:1 or 2:1.
  • ratio ranges refer to the recombinant Bacillus cercus family memberbased biological control agent (to be combined with at least one particular insecticide or a preparation of at least one particular insecticide disclosed herein), for example, a ratio of 100:1 means 100 weight parts of a spore preparation of the recombinant exosporium-producing Bacillus-based biological control agent and 1 weight part of insecticide are combined (either as a solo formulation, a combined formulation or by separate applications to plants so that the combination is formed on the plant).
  • the spore preparation of the recombinant exosporium-producing Bacillus cells is a dried spore preparation containing at least about 1 x 10 4 cfu/g, at least about 1 x 10 5 cfu/g, at least about 1 x 10 6 cfu/g at least about 1 x 10 7 cfu/g, at least about 1 x 10 8 cfu/g, at least about 1 x 10 9 cfu/g, at least about 1 x IO 10 cfu/g, or at least about 1 x 10 11 cfu/g.
  • the synergistic weight ratio of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and the at least one particular insecticide disclosed herein is in the range of 1:100 to 20,000:1, preferably in the range of 1 :50 to 10,000: 1 or even in the range of 1 :50 to 1,000: 1.
  • the concentration of the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom after dispersal is at least 50 g/ha, such as 50 - 7500 g/ha, 50 - 2500 g/ha, 50 - 1500 g/ha; at least 250 g/ha (hectare), at least 500 g/ha or at least 800 g/ha.
  • composition to be employed or used according to the present invention may vary.
  • the skilled person is able to find the appropriate application rate by way of routine experiments.
  • the present invention therefore also relates in particular to a method for protecting seed and germinating plants from attack by pests, by treating the seed with the recombinant exosporium-producing Bacillus cells as defined above and at least one particular insecticide disclosed herein in a synergistically effective amount.
  • the method of the invention for protecting seed and germinating plants from attack by pests encompasses a method in which the seed is treated simultaneously in one operation with the recombinant exosporium-producing Bacillus cells and the at least one particular insecticide disclosed herein, and optionally the at least one fungicide.
  • the seed is treated at different times with the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and the at least one particular insecticide disclosed herein, and optionally the at least one fungicide.
  • the invention likewise relates to the use of the composition of the invention for treating seed for the purpose of protecting the seed and the resultant plant against insects, mites, nematodes and/or phytopathogens.
  • the invention also relates to seed which at the same time has been treated with a recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and at least one particular insecticide disclosed herein, and optionally at least one fungicide.
  • the invention further relates to seed which has been treated at different times with the recombinant exosporium-producing Bacillus cells or exosporium fragments derived therefrom and the at least one particular insecticide disclosed herein and optionally the at least one fungicide and/or the at least one insecticide.
  • the individual active ingredients in the composition of the invention may be present in different layers on the seed.
  • the invention relates to seed which, following treatment with the composition of the invention, is subjected to a film-coating process in order to prevent dust abrasion of the seed.
  • One of the advantages of the present invention is that, owing to the particular systemic properties of the compositions of the invention, the treatment of the seed with these compositions provides protection from insects, mites, nematodes and/or phytopathogens not only to the seed itself but also to the plants originating from the seed, after they have emerged. In this way, it may not be necessary to treat the crop directly at the time of sowing or shortly thereafter.
  • a further advantage is to be seen in the fact that, through the treatment of the seed with composition of the invention, germination and emergence of the treated seed may be promoted.
  • composition of the invention may also be used, in particular, on transgenic seed.
  • composition of the invention may be used in combination with agents of the signaling technology, as a result of which, for example, colonization with symbionts is improved, such as rhizobia, mycorrhiza and/or endophytic bacteria, for example, is enhanced, and/or nitrogen fixation is optimized.
  • agents of the signaling technology for example, colonization with symbionts is improved, such as rhizobia, mycorrhiza and/or endophytic bacteria, for example, is enhanced, and/or nitrogen fixation is optimized.
  • compositions of the invention are suitable for protecting seed of any variety of plant which is used in agriculture, in greenhouses, in forestry or in horticulture. More particularly, the seed in question is that of cereals (e.g., wheat, barley, rye, oats and millet), maize, cotton, soybeans, rice, potatoes, sunflower, coffee, tobacco, canola, oilseed rape, beets (e.g., sugar beet and fodder beet), peanuts, vegetables (e.g., tomato, cucumber, bean, brassicas, onions and lettuce), fruit plants, lawns and ornamentals. Particularly important is the treatment of the seed of cereals (such as wheat, barley, rye and oats) maize, soybeans, cotton, canola, oilseed rape and rice.
  • cereals e.g., wheat, barley, rye, oats and millet
  • maize cotton
  • soybeans rice
  • potatoes sunflower
  • coffee tobacco
  • the seed in question here is that of plants which generally contain at least one heterologous gene that controls the expression of a polypeptide having, in particular, insecticidal and/or nematicidal properties.
  • These heterologous genes in transgenic seed may come from microorganisms such as Bacillus, Rhizobium, Pseudomonas, Serratia, Trichoderma, Clavibacter, Glomus or Gliocladium.
  • the present invention is particularly suitable for the treatment of transgenic seed which contains at least one heterologous gene from Bacillus sp.
  • the heterologous gene in question comes from Bacillus thuringiensis .
  • the composition of the invention is applied alone or in a suitable formulation to the seed.
  • the seed is preferably treated in a condition in which its stability is such that no damage occurs in the course of the treatment.
  • the seed may be treated at any point in time between harvesting and sowing.
  • seed is used which has been separated from the plant and has had cobs, hulls, stems, husks, hair or pulp removed.
  • seed may be used that has been harvested, cleaned and dried to a moisture content of less than 15% by weight.
  • seed can also be used that after drying has been treated with water, for example, and then dried again.
  • compositions of the invention can be applied directly, in other words without comprising further components and without having been diluted.
  • suitable formulations and methods for seed treatment are known to the skilled person and are described in, for example, the following documents: U.S. Patent Nos. 4,272,417; 4,245,432; 4,808,430; 5,876,739; U.S. Patent Publication No. 2003/0176428 Al; and PCT Patent Publication Nos. WO 2002/080675 Al; WO 2002/028186 A2.
  • the combinations which can be used in accordance with the invention may be converted into the customary seed-dressing formulations, such as solutions, emulsions, suspensions, powders, foams, slurries or other coating compositions for seed, and also ULV formulations.
  • customary seed-dressing formulations such as solutions, emulsions, suspensions, powders, foams, slurries or other coating compositions for seed, and also ULV formulations.
  • formulations are prepared in a known manner, by mixing composition with customary adjuvants, such as, for example, customary extenders and also solvents or diluents, colorants, wetters, dispersants, emulsifiers, antifoams, preservatives, secondary thickeners, stickers, gibberellins, and also water.
  • customary adjuvants such as, for example, customary extenders and also solvents or diluents, colorants, wetters, dispersants, emulsifiers, antifoams, preservatives, secondary thickeners, stickers, gibberellins, and also water.
  • Colorants which may be present in the seed-dressing formulations which can be used in accordance with the invention include all colorants which are customary for such purposes. In this context it is possible to use not only pigments, which are of low solubility in water, but also water-soluble dyes. Examples include the colorants known under the designations Rhodamin B, C.I. Pigment Red 112, and C.I. Solvent Red 1.
  • Wetters which may be present in the seed-dressing formulations which can be used in accordance with the invention include all of the substances which promote wetting and which are customary in the formulation of active agrochemical ingredients. Use may be made preferably of alkylnaphthalenesulphonates, such as diisopropyl- or diisobutylnaphthalenesulphonates.
  • Dispersants and/or emulsifiers which may be present in the seed-dressing formulations which can be used in accordance with the invention include all of the nonionic, anionic and cationic dispersants that are customary in the formulation of active agrochemical ingredients. Use may be made preferably of nonionic or anionic dispersants or of mixtures of nonionic or anionic dispersants.
  • Suitable nonionic dispersants are, in particular, ethylene oxidepropylene oxide block polymers, alkylphenol poly glycol ethers and also tristryrylphenol polyglycol ethers, and the phosphated or sulphated derivatives of these.
  • Suitable anionic dispersants are, in particular, lignosulphonates, salts of polyacrylic acid, and arylsulphonateformaldehyde condensates.
  • Antifoams which may be present in the seed-dressing formulations which can be used in accordance with the invention include all of the foam inhibitors that are customary in the formulation of active agrochemical ingredients. Use may be made preferably of silicone antifoams and magnesium stearate.
  • Preservatives which may be present in the seed-dressing formulations which can be used in accordance with the invention include all of the substances which can be employed for such purposes in agrochemical compositions. Examples include dichlorophen and benzyl alcohol hemiformal.
  • Secondary thickeners which may be present in the seed-dressing formulations which can be used in accordance with the invention include all substances which can be used for such purposes in agrochemical compositions. Those contemplated with preference include cellulose derivatives, acrylic acid derivatives, xanthan, modified clays and highly disperse silica.
  • Stickers which may be present in the seed-dressing formulations which can be used in accordance with the invention include all customary binders which can be used in seeddressing products. Preferred mention may be made of polyvinylpyrrolidone, polyvinyl acetate, polyvinyl alcohol and tylose.
  • the gibberellins are known (cf. R. Wegler, “Chemie der convinced- und Schadlingsbekampfungsstoff”, Volume 2, Springer Verlag, 1970, pp. 401-412).
  • the seed-dressing formulations which can be used in accordance with the invention may be used, either directly or after prior dilution with water, to treat seed of any of a wide variety of types. Accordingly, the concentrates or the preparations obtainable from them by dilution with water may be employed to dress the seed of cereals, such as wheat, barley, rye, oats and triticale, and also the seed of maize, rice, oilseed rape, peas, beans, cotton, sunflowers and beets, or else the seed of any of a very wide variety of vegetables.
  • the seed-dressing formulations which can be used in accordance with the invention, or their diluted preparations may also be used to dress seed of transgenic plants. In that case, additional synergistic effects may occur in interaction with the substances formed through expression.
  • suitable mixing equipment includes all such equipment which can typically be employed for seed dressing. More particularly, the procedure when carrying out seed dressing is to place the seed in a mixer, to add the particular desired amount of seed-dressing formulations, either as such or following dilution with water beforehand, and to carry out mixing until the distribution of the formulation on the seed is uniform. This may be followed by a drying operation.
  • the application rate of the seed-dressing formulations which can be used in accordance with the invention may be varied within a relatively wide range. It is guided by the particular amount of the recombinant exosporium-producing Bacillus cereus family memberbased biological control agent and the at least one particular insecticide disclosed herein in the formulations, and by the seed.
  • the application rates in the case of the composition are situated generally at between 0.001 and 50 g per kilogram of seed, preferably between 0.01 and 15 g per kilogram of seed.
  • compositions according to the invention in case they exhibit insecticidal and miticidal and/or nematicidal activity, in combination with good plant tolerance and favourable toxicity to warm-blooded animals and being tolerated well by the environment, are suitable for protecting plants and plant organs, for increasing harvest yields, for improving the quality of the harvested material and for controlling animal pests, in particular insects, mites, arachnids, helminths, nematodes and molluscs, which are encountered in agriculture, in horticulture, in animal husbandry, in forests, in gardens and leisure facilities, in protection of stored products and of materials, and in the hygiene sector. They can be preferably employed as plant protection agents.
  • the present invention relates to the use of the composition according to the invention as insecticide and/or fungicide.
  • pests from the phylum Arthropoda especially from the class Arachnida, for example, Acarus spp., Aceria sheldoni, Aculops spp., Aculus spp., Amblyomma spp., Amphitetranychus viennensis, Argas spp., Boophilus spp., Brevipalpus spp., Bryobia graminum, Bryobia praetiosa, Centruroides spp., Chorioptes spp., Dermanyssus gallinae, Dermatophagoides pteronyssinus, Dermatophagoides farinae, Dermacentor spp., Eotetranychus spp., Epitrimerus pyri, Eutetr any chits spp., Eriophyes spp., Glycyphagus domesticus, Halotydeus destructor, He
  • clover mite in particular clover mite, brown mite, hazelnut spider mite, asparagus spider mite, brown wheat mite, legume mite, oxalis mite, boxwood mite, Texas citrus mite, Oriental red mite, citrus red mite, European red mite, yellow spider mite, fig spider mite, Lewis spider mite, six-spotted spider mite, Willamette mite, Yuma spider mite, web-spinning mite, pineapple mite, citrus green mite, honey-locust spider mite, tea red spider mite, southern red mite, avocado brown mite, spruce spider mite, avocado red mite, Banks grass mite, carmine spider mite, desert spider mite, vegetable spider mite, tumid spider mite, strawberry spider mite, two-spotted spider mite, McDaniel mite, Pacific spider mite, hawthorn spider mite, four-spotted spider mite, Schoenei spider mite, Chilean false spider mite, citrus flat mite, privet mite
  • Hymenoptera for example, Acromyrmex spp., Athalia spp., Atta spp., Diprion spp., Hoplocampa spp., Lasius spp., Monomorium pharaonis, Sirex spp., Solenopsis invicta, Tapinoma spp., Urocerus spp., Vespa spp., Xeris spp.;
  • Coptotermes spp. for example, Coptotermes spp., Cornitermes cumulans, Cryptotermes spp., Incisitermes spp., Microtermes obesi, Odontotermes spp., Reticulitermes spp.;
  • Siphonaptera for example, Ceratophyllus spp., Ctenocephalides spp., Pulex irritans, Tunga penetrans, Xenopsylla cheopsis',
  • Thysanoptera for example, Anaphothrips obscurus, Baliothrips biformis, Drepanothrips reuteri, Enneothrips flavens, Frankliniella spp., Heliothrips spp., Hercinothrips femoralis, Rhipiphorothrips cruentatus, Scirtothrips spp., Taeniothrips cardamomi, Thrips spp.;
  • pests from the phylum Mollusca especially from the class Bivalvia, for example, Dreissena spp., and from the class Gastropoda, for example, Arion spp., Biomphalaria spp., Bulinus spp., Deroceras spp., Galba spp., Lymnaea spp., Oncomelania spp., Pomacea spp., Succinea spp.;
  • animal pests from the phylums Plathelminthes and Nematoda for example, Ancylostoma duodenale, Ancylostoma ceylanicum, Acylostoma braziliensis, Ancylostoma spp., Ascaris spp., Brugia malayi, Brugia timori, Bunostomum spp., Chabertia spp., Clonorchis spp., Cooperia spp., Dicrocoelium spp., Dictyocaulus filaria, Diphyllobothrium latum, Dracunculus medinensis, Echinococcus granulosus, Echinococcus multilocularis, Enterobius vermicularis , Faciola spp., Haemonchus spp., Heterakis spp., Hymenolepis nana, Hyostrongulus spp
  • phytoparasitic pests from the phylum Nematoda for example, Aphelenchoides spp., Bursaphelenchus spp., Ditylenchus spp., Globodera spp., Heterodera spp., Longidorus spp., Meloidogyne spp., Pratylenchus spp., Radopholus spp., Trichodorus spp., Tylenchulus spp., Xiphinema spp., Helicotylenchus spp., Tylenchorhynchus spp., Scutellonema spp., Paratrichodorus spp., Meloinema spp., Paraphelenchus spp., Aglenchus spp., Belonolaimus spp., Nacobbus spp., Rotylenchulus spp., Rot
  • composition is well tolerated by plants at the concentrations required for controlling plant diseases and pests allows the treatment of above-ground parts of plants, of propagation stock and seeds, and of the soil.
  • plants and plant parts can be treated.
  • plants are meant all plants and plant populations such as desirable and undesirable wild plants, cultivars and plant varieties (whether or not protectable by plant variety or plant breeder’s rights).
  • Cultivars and plant varieties can be plants obtained by conventional propagation and breeding methods which can be assisted or supplemented by one or more biotechnological methods such as by use of double haploids, protoplast fusion, random and directed mutagenesis, molecular or genetic markers or by bioengineering and genetic engineering methods.
  • plant parts are meant all above ground and below ground parts and organs of plants such as shoot, leaf, blossom and root, whereby for example leaves, needles, stems, branches, blossoms, fruiting bodies, fruits and seed as well as roots, corms and rhizomes are listed.
  • Crops and vegetative and generative propagating material for example cuttings, corms, rhizomes, runners and seeds also belong to plant parts.
  • the inventive composition when it is well tolerated by plants, has favourable homeotherm toxicity and is well tolerated by the environment, is suitable for protecting plants and plant organs, for enhancing harvest yields, for improving the quality of the harvested material. It can preferably be used as crop protection composition. It is active against normally sensitive and resistant species and against all or some stages of development.
  • Plants which can be treated in accordance with the invention include the following main crop plants: maize, soya bean, alfalfa, cotton, sunflower, Brassica oil seeds such as Brassica napus (e.g., canola, rapeseed), Brassica rapa, B.
  • juncea e.g., (field) mustard
  • Brassica carinata Arecaceae sp. (e.g., oilpalm, coconut), rice, wheat, sugar beet, sugar cane, oats, rye, barley, millet and sorghum, triticale, flax, nuts, grapes and vine and various fruit and vegetables from various botanic taxa, e.g., Rosaceae sp.
  • pome fruits such as apples and pears, but also stone fruits such as apricots, cherries, almonds, plums and peaches, and berry fruits such as strawberries, raspberries, red and black currant and gooseberry
  • Ribesioidae sp. Juglandaceae sp.
  • Betulaceae sp. Anacardiaceae sp., Fagaceae sp., Moraceae sp., Oleaceae sp. (e.g., olive tree), Actinidaceae sp., Lauraceae sp. (e.g., avocado, cinnamon, camphor), Musaceae sp.
  • Rubiaceae sp. e.g., coffee
  • Theaceae .sp. e.g., tea
  • Sterculiceae sp. e.g., tea
  • Sterculiceae sp. e.g., tea
  • Sterculiceae sp. e.g., tea
  • Sterculiceae sp. e.g., tea
  • Rutaceae sp. e.g., lemons, oranges, mandarins and grapefruit
  • Solanaceae sp. e.g., tomatoes, potatoes, peppers, capsicum, aubergines, tobacco
  • Cucurbitaceae sp. e.g., cucumbers - including gherkins, pumpkins, watermelons, calabashes and melons
  • Alliaceae sp. e.g., leeks and onions
  • Cruciferae sp. e.g., white cabbage, red cabbage, broccoli, cauliflower, Brussels sprouts, pak choi, kohlrabi, radishes, horseradish, cress and Chinese cabbage
  • Leguminosae sp. e.g., peanuts, peas, lentils and beans - e.g., common beans and broad beans
  • Linaceae sp. e.g., hemp
  • Cannabeacea sp. e.g., cannabis
  • Malvaceae sp. e.g., okra, cocoa
  • Papaveraceae e.g., poppy
  • Asparagaceae e.g., asparagus
  • useful plants and ornamental plants in the garden and woods including turf, lawn, grass and Stevia rebaudiana’, and in each case genetically modified types of these plants.
  • the treatment according to the invention may also result in super-additive (“synergistic”) effects.
  • inventive composition in the treatment according to the invention may also have a strengthening effect in plants.
  • the defense system of the plant against attack by unwanted phytopathogenic fungi and/ or microorganisms and/or viruses is mobilized.
  • Plant- strengthening (resistance-inducing) substances are to be understood as meaning, in the present context, those substances or combinations of substances which are capable of stimulating the defense system of plants in such a way that, when subsequently inoculated with unwanted phytopathogenic fungi and/or microorganisms and/or viruses, the treated plants display a substantial degree of resistance to these phytopathogenic fungi and/or microorganisms and/or viruses.
  • composition according to the present invention in the treatment according to the invention, plants can be protected against attack by the abovementioned pathogens within a certain period of time after the treatment.
  • the period of time within which protection is effected generally extends from 1 to 10 days, preferably 1 to 7 days, after the treatment of the plants with the active compounds.
  • Plants and plant cultivars which are also preferably to be treated according to the invention are resistant against one or more biotic stresses, i.e., said plants show a better defense against animal and microbial pests, such as against nematodes, insects, mites, phytopathogenic fungi, bacteria, viruses and/or viroids.
  • Plants and plant cultivars which may also be treated according to the invention are those plants which are resistant to one or more abiotic stresses, i.e., that already exhibit an increased plant health with respect to stress tolerance.
  • Abiotic stress conditions may include, for example, drought, cold temperature exposure, heat exposure, osmotic stress, flooding, increased soil salinity, increased mineral exposure, ozone exposure, high light exposure, limited availability of nitrogen nutrients, limited availability of phosphorus nutrients, shade avoidance.
  • the treatment of these plants and cultivars with the composition of the present invention additionally increases the overall plant health (cf. above).
  • Plants and plant cultivars which may also be treated according to the invention are those plants characterized by enhanced yield characteristics, i.e., that already exhibit an increased plant health with respect to this feature. Increased yield in said plants can be the result of, for example, improved plant physiology, growth and development, such as water use efficiency, water retention efficiency, improved nitrogen use, enhanced carbon assimilation, improved photosynthesis, increased germination efficiency and accelerated maturation.
  • Yield can furthermore be affected by improved plant architecture (under stress and non-stress conditions), including but not limited to, early flowering, flowering control for hybrid seed production, seedling vigor, plant size, internode number and distance, root growth, seed size, fruit size, pod size, pod or ear number, seed number per pod or ear, seed mass, enhanced seed filling, reduced seed dispersal, reduced pod dehiscence and lodging resistance.
  • Further yield traits include seed composition, such as carbohydrate content, protein content, oil content and composition, nutritional value, reduction in anti-nutritional compounds, improved processability and better storage stability.
  • the treatment of these plants and cultivars with the composition of the present invention additionally increases the overall plant health (cf. above).
  • Plants that may be treated according to the invention are hybrid plants that already express the characteristic of heterosis or hybrid vigor which results in generally higher yield, vigor, health and resistance towards biotic and abiotic stress factors. Such plants are typically made by crossing an inbred male-sterile parent line (the female parent) with another inbred male-fertile parent line (the male parent). Hybrid seed is typically harvested from the male sterile plants and sold to growers. Male sterile plants can sometimes (e.g., in com) be produced by detasseling, i.e., the mechanical removal of the male reproductive organs (or males flowers) but, more typically, male sterility is the result of genetic determinants in the plant genome.
  • male sterile plants can also be obtained by plant biotechnology methods such as genetic engineering.
  • a particularly useful means of obtaining male-sterile plants is described in WO 89/10396 in which, for example, a ribonuclease such as bamase is selectively expressed in the tapetum cells in the stamens. Fertility can then be restored by expression in the tapetum cells of a ribonuclease inhibitor such as barstar.
  • Plants or plant cultivars obtained by plant biotechnology methods such as genetic engineering which may be treated according to the invention are herbicide-tolerant plants, i.e., plants made tolerant to one or more given herbicides. Such plants can be obtained either by genetic transformation, or by selection of plants containing a mutation imparting such herbicide tolerance.
  • a method for stimulating plant growth and/or promoting plant health and/or controlling plant pests, such as nematodes, and/or controlling plant pathogens comprises applying the compositions of the present invention to a plant growth medium, a plant, a plant seed, or an area surrounding a plant or a plant seed contacting the plant pest with the compositions of the present invention.
  • the method comprises applying a formulation to a plant growth medium, a plant, a plant seed, or an area surrounding a plant or a plant seed.
  • the formulation can comprise any of the formulations described herein.
  • the method can comprise applying a composition comprising an insecticide or plant growth promoting active ingredient and the recombinant Bacillus cereus family member, the exosporium fragments, or the formulation to the plant growth medium.
  • the plant growth medium can comprise soil, water, an aqueous solution, sand, gravel, a polysaccharide, mulch, compost, peat moss, straw, logs, clay, soybean meal, yeast extract, or a combination thereof.
  • the plant growth medium can comprise a fertilizer.
  • Any of the methods described herein can further comprise supplementing the plant growth medium with a substrate for an enzyme.
  • Suitable substrates include, but are not limited to protein meal, casein, gelatin, albumin, or a combination of any thereof.
  • the method can comprise applying any of the compositions of the present invention to roots of the plant.
  • the method can comprise applying the compositions of the present invention foliarly.
  • the method can comprise applying the compositions of the present invention to the plant seed.
  • the plant pest that are controlled can be phytoparasitic pests from the phylum Nematoda, for example, Aglenchus spp., Anguina spp., Aphelenchoides spp., Belonolaimus spp., Bursaphelenchus spp., Cacopaurus spp., Criconemella spp., Criconemoides spp., Ditylenchus spp., Dolichodorus spp., Globodera spp., Helicotylenchus spp., Hemicriconemoides spp., Hemicycliophora spp., Heterodera spp., Hoplolaimus spp., Longidorus spp., Lygus spp., Melo
  • plants grown in the presence of any of the compositions of the present invention can exhibit increased growth as compared to plants grown in the absence of the composition under the same conditions.
  • seeds to which any of the compositions of the present invention has been applied can exhibit increased germination rates as compared to seeds to which the composition has not been applied, under the same conditions.
  • plants grown in the presence of any of the compositions of the present invention can exhibit increased nutrient uptake as compared to plants grown in the absence of the composition, under the same conditions.
  • plants grown in the presence of any of the compositions of the present invention can exhibit decreased susceptibility to a pest, such as nematodes, as compared to plants grown in the absence of the composition, under the same conditions.
  • plants grown in the presence of any of the compositions of the present invention can exhibit decreased nematode damage, including reduced galling, reduced cysts, and/or reduced nematodes per weight of root, as compared to plants grown in the absence of the composition, under the same conditions.
  • plants or the locus in which the plant is grown, such as soil, to which any of the compositions of the present invention has been applied can exhibit reduced nematode eggs and/or reduced nematodes per volume of soil, as compared to plants grown in the absence of composition, under the same conditions.
  • the compositons of the present invention decrease nematodes and/or nematode damage by at least about 0.5%, or by at least about 1%, or by at least about 2%, or by at least about 3%, or by at least about 5%, or by at least about 6%, or by at least about 7%, or by at least about 8%, or by at least about 9%, or by at least about 10%, or by at least about 11%, or by at least about 12% when compared to plants produced under the same conditions but without treatment by a recombinant Bacillus cereus family member.
  • plants grown in the presence of any of the compositions of the present invention can exhibit decreased susceptibility to a pathogen as compared to plants grown in the absence of the composition, under the same conditions.
  • plants grown in the presence of any of the compositions of the present invention can exhibit decreased susceptibility to an environmental stress (e.g., drought, flood, heat, freezing, salt, heavy metals, low pH, high pH, or a combination of any thereof) as compared to plants grown in the absence of the composition, under the same conditions.
  • an environmental stress e.g., drought, flood, heat, freezing, salt, heavy metals, low pH, high pH, or a combination of any thereof
  • plants grown in the presence of any of the compositions of the present invention can exhibit increased root nodulation as compared to plants grown in the absence of the composition, under the same conditions.
  • plants grown in the presence of any of the compositions of the present invention can exhibit greater crop yield as compared to plants grown in the absence of the composition, under the same conditions.
  • the composition of the present invention increases yield or total plant weight by at least about 0.5%, or by at least about 1%, or by at least about 2%, or by at least about 3%, or by at least about 5%, or by at least about 6%, or by at least about 7%, or by at least about 8%, or by at least about 9%, or by at least about 10%, or by at least about 11%, or by at least about 12% when compared to plants produced under the same conditions but without treatment by the compositions of the present invention.
  • compositions of the present invention improve some aspect of plant vigor, such as germination, by at least about 0.5%, or by at least about 1%, or by at least about 2%, or by at least about 3%, or by at least about 5%, or by at least about 6%, or by at least about 7%, or by at least about 8%, or by at least about 9%, or by at least about 10%, or by at least about 11%, or by at least about 12% when compared to plants produced under the same conditions but without treatment by a composition of the present invention.
  • plants grown in the presence of any of the compositions of the present invention can exhibit altered leaf senescence as compared to plants grown in the absence of such compositions, under the same conditions.
  • Example 1 Construction of a Bacillus cercus Family Member Displaying a Serine Protease or Serine Protease Variant
  • the pSUPER plasmid was generated through fusion of the pUC57 plasmid (containing an ampicillin resistance cassette and a ColEl origin of replication) with the pBC16-l plasmid from Bacillus cercus (containing a tetracycline resistance gene, repU replication gene and oriU origin of replication).
  • This 5.8 kb plasmid can replicate in both E. coli and Bacillus spp. and can be selected by conferring resistance to P-lactam antibiotics in E.
  • the basal pSUPER plasmid was modified by insertion of a PCR-generated fragment that fused the BclA promoter (SEQ ID NO: 11), a start codon, amino acids 20-35 of BclA (amino acids 20-35 of SEQ ID NO: 1) and an alanine linker sequence in frame with SEQ ID NO: 4, SEQ ID NO: 5, or SEQ ID NO: 6, resulting in a plasmid termed pSUPER-BclA 20- 35-SEQ ID NO: 4, pSUPER-BclA 20-35-SEQ ID NO: 5, or pSUPER-BclA 20-35-SEQ ID NO: 6, respectively.
  • This construct was transformed into E. coli and plated on Lysogeny broth plates plus ampicillin (100 pg/mL) to obtain single colonies. Individual colonies were used to inoculate Lysogeny broth plus ampicillin and incubated overnight at 37°C, 300 rpm. Plasmids from resulting cultures were extracted using a commercial plasmid purification kit. DNA concentrations of these plasmid extracts were determined via spectrophotometry, and obtained plasmids subjected to analytical digests with appropriate combinations of restriction enzymes. The resulting digestion patterns were visualized by agarose gel electrophoresis to investigate plasmid size and presence of distinct plasmid features. Relevant sections, such as the SEQ ID NO: 4, SEQ ID NO: 5 or SEQ ID NO: 6 expression cassette, of the purified pSUPER derivatives were further investigated by Sanger sequencing.
  • a derivative plasmid of the pSUPER plasmids described above was created as follows.
  • the pBC fragment (pBC 16-1 -derived section of pSUPER including BclA/serine protease variant expression cassette and tetracycline resistance) of the pSUPER plasmids described above was amplified by PCR and subsequently circularized by blunt-end ligation.
  • pSUPER, verified as described above, and pBC plasmid ligations were introduced by electroporation into Bacillus thuringiensis BT013A. Single transformed colonies were isolated by plating on nutrient broth plates containing tetracycline (10 pg/mL).
  • Bacillus thuringiensis BT013A was deposited with the United States Department of Agriculture (USDA) Agricultural Research Service (ARS), having the address 1815 North University Street, Peoria, Illinois 61604, U.S.A., on March 10, 2014, and assigned accession number NRRL B-50924. Bacillus thuringiensis BT013A is also known as Bacillus thuringiensis 4Q7.
  • USDA United States Department of Agriculture
  • ARS Agricultural Research Service
  • Clones were passaged under high temperature (40°C) in brain heart infusion broth. Individual colonies were toothpicked onto LB agar plates containing erythromycin 5 pg/mL, grown at 30°C, and screened for the presence of the pKOKI plasmid integrated into the chromosome by colony PCR. Colonies that had an integration event were continued through passaging to screen for single colonies that lost erythromycin resistance (signifying loss of the plasmid by recombination and removal of the exsY gene). Verified deletions were confirmed by PCR amplification and sequencing of the target region of the chromosome.
  • the spores were collected via centrifugation at 8,000 x g for 10 minutes, and supernatant containing the exosporium fragments was filtered through a 0.22 pm filter to remove any residual spores. No spores were found in the filtrate.
  • Example 3 Use of an Expression Cassette Comprising a Non-Antibiotic Selectable Marker to Express the Serine Protease Variant on the Surface of Bacillus cerus Family Member Spores
  • SEQ ID NO: 6 was cloned into a derivative of the pSUPER plasmid described in Example 1.
  • the tetracycline resistance marker had previously been exchanged with a non- antibiotic selectable marker.
  • the pBC fragment of this derivative pSUPER plasmid was created as described in Example 1.
  • the resulting pBC ligation referred to as pBCnam212, was introduced using electroporation into a Bacillus thuringiensis BT013A derivative strain that had been modified to support the use of the non- antibiotic selectable marker. Single colonies of transformations were obtained by plating on suitable selection media on petri plates.
  • Example 4 Formula for the Efficacy of the Combination of Multiple Active Ingredients
  • a synergistic effect of active ingredients is present when the activity of the active ingredient combinations exceeds the total of the activities of the active ingredients when applied individually.
  • the expected activity for a given combination of two active ingredients can be calculated as follows (cf. Colby, S.R., “Calculating Synergistic and Antagonistic Responses of Herbicide Combinations,” Weeds, 1967, 15, 20-22):
  • X is the efficacy when active ingredient A is applied at an application rate of m ppm (or g/ha),
  • Y is the efficacy when active ingredient B is applied at an application rate of n ppm (or g/ha),
  • E is the efficacy when the active ingredients A and B are applied at application rates of m and n ppm (or g/ha), respectively, and then
  • the formula and analysis can be applied to an evaluation of plant growth promotion.
  • Such an assay is evaluated several days after the applications to plants.
  • 100% means plant weight which corresponds to that of the untreated control plant.
  • Efficacy means in this case the additional % of plant weight in comparison to that of the untreated control. For example, a treatment that resulted in plant weights that were 120% compared to the untreated control plant would have an efficacy of 20%. If the plant growth promotion effect for the combination (i.e., the observed efficacy for % plant weights of plants treated with the combination) exceeds the calculated value, then the activity of the combination is superadditive, i.e., a synergistic effect exists.
  • the formula and analysis can also be used to evaluate synergy in disease control and insect control assays.
  • the degree of efficacy expressed in % is denoted. 0% means an efficacy which corresponds to that of the control while an efficacy of 100% means that no disease is observed.
  • Seed is treated with (i) 234.8 mL/100 kg of the whole broth culture of BT013A-pBCnam212, which is equivalent to 1 x 10 10 colony forming units (of the recombinant cell expressing the serine protease variant) (“CFU”)/100 kg seed or 234.8 mL/100 kg of the exosporium fragments of BTO I Acxs l z KO- pBC212 and/or (ii) fluopyram.
  • the concentration of each whole broth culture is 5 x 10 6 CFU/mL.
  • the same volume of the exosporium fragment preparation as whole broth is applied to seeds to achieve a comparable application rate to that of the whole broth, as very little liquid is lost during the centrifugation and filtration processes that are used to separate exosporium fragments from cells.
  • the fluopyram is applied to the seed, alone or in combination with the whole broth culture or exosporium fragments, at or below its label rate. All treatments are planted into a sandy loam soil. Ten days post emergence, soybean plants are inoculated with 2,000 second stage juvenile soybean cyst nematodes (Heterodera glycine). Plants are harvested four weeks later and cysts are removed and collected using a system of sieves, centrifugation, and a sucrose solution.
  • Cysts are then crushed to release the eggs which are enumerated by taking three sub-samples from the total solution collected from each of ten plants from each treatment. It is expected that the seeds treated with the recombinant Bacillus thuringiensis in combination with the fluopyram or the exosporium fragments in combination with the fluopyram will show a greater reduction in both the total number of nematode eggs and the number of eggs per gram of root, than the seed treated with only one active ingredient; i.e., a synergistic effect will be shown.

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Abstract

La présente invention concerne une composition comprenant (a) un membre recombiné de la famille des Bacillus cereus qui exprime une protéine de fusion comprenant (i) une enzyme ayant une activité de sérine protéase comprenant une séquence d'acides aminés ayant au moins 95 % d'identité avec SEQ ID No. 4 ou SEQ ID No. 5 ou une séquence d'acides aminés ayant au moins 95 % d'identité avec SEQ ID No. 6 et (ii) une séquence de ciblage, une protéine d'exine, ou un fragment de protéine d'exine qui cible la protéine de fusion vers l'exine d'un membre recombiné de la famille des Bacillus cereus ou de fragments d'exine dérivés de ce membre recombiné de la famille des Bacillus cereus ; et (b) au moins un insecticide ou un stimulateur de croissance de plantes divulgué dans la présente description, dans une quantité synergiquement efficace. La présente invention concerne en outre l'utilisation de cette composition, ainsi qu'un procédé pour lutter contre les nématodes, améliorer la croissance des plantes, favoriser la santé des plantes et/ou réduire les dégâts généraux causés aux plantes et aux parties de plantes.
PCT/US2022/080101 2021-11-20 2022-11-18 Combinaisons bénéfiques contenant des cellules de bacillus recombinées exprimant une sérine protéase WO2023092050A1 (fr)

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