WO2002019827A1 - Controle biologique de la contamination fongique par l'application de geotrichum candidum - Google Patents
Controle biologique de la contamination fongique par l'application de geotrichum candidum Download PDFInfo
- Publication number
- WO2002019827A1 WO2002019827A1 PCT/FR2001/002644 FR0102644W WO0219827A1 WO 2002019827 A1 WO2002019827 A1 WO 2002019827A1 FR 0102644 W FR0102644 W FR 0102644W WO 0219827 A1 WO0219827 A1 WO 0219827A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- geotrichum candidum
- spraying
- fungicide
- mycotoxins
- spores
- Prior art date
Links
Classifications
-
- 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
- A01N63/30—Microbial fungi; Substances produced thereby or obtained therefrom
- A01N63/32—Yeast
Definitions
- the invention relates to the application of a microorganism, Geotrichum candidum. in the form of a field spray, for the treatment of cereals contaminated by mold, in particular by Fusarium strains.
- the present invention will find its application in the field of agriculture.
- Cereal diseases in particular fusarium head blight, are the cause of major damage: loss of yield, depreciation of the quality of the harvest with deterioration in the technological values of cereals. These plant diseases are also responsible for the biosynthesis of mycotoxins that are found on grains at harvest.
- the main mycotoxins produced by Fusarium are trichothecenes type A and B (Deoxynivalenol, Nivalenol or T2-toxin for example), supplemented by zearalenone and fumonisins for corn.
- the nature of the mycotoxins depends on the Fusarium species present. In particular, certain mycotoxins resist processing conditions and can thus be found in finished products. They therefore present a risk for food security. It is therefore important to prevent Fusarium head blight, mold contamination of the grain and the production of mycotoxins during the growing of grain.
- the main known means of combating contamination by molds is the treatment of crops by the use of fungicides.
- Fungicides are biologically active chemicals and their application in fields can therefore present toxicological and ecological risks.
- the low stability of fungicide products requires regular renewal of treatments during the vegetation.
- the treatment must also have a sufficiently broad spectrum of action while being limited to fungi.
- the effectiveness of these treatments is not total on ears (20 to 80% efficiency) and weak on grains (0 to 30% efficiency).
- recent observatories carried out on different lots of cereals show that a large part of the lots have after treatment a still significant mycotoxin content of several hundred micrograms per kg.
- the present invention aims to inhibit the development of fungal flora and in particular Fusarium species contaminating the ears and grains, as well as the production of secondary metabolites fungi, such as mycotoxins.
- the use of selected non-pathogenic microorganisms has been proposed to reduce the development of the fungal flora in malting.
- lactic acid bacteria are used to reduce the development of the fungal flora and more specifically of Fusarium (WO 94/16053).
- the use of the strain Geotrichum candidum naturally present on barley during germination and on finished malt has also been proposed, on the one hand, to inhibit the development of the toxicogenic flora during malting and on the other hand , to improve the biochemical and physicochemical quality of malt (WO 96/34085).
- An advantage of the selected Geotrichum candidum strain is that it does not produce toxic and teratogenic substances for a vertebrate, nor substances exhibiting genotoxic activities.
- the present invention results in particular from studies on the contamination of the ears by Fusarium as a function of spraying tests in a crop field of Geotrichum candidum. Interestingly, these studies have shown an inhibitory effect of Geotrichum candidum on contamination by fungi such as Fusarium sp. They also show a decrease in the presence of mycotoxins and an increase in crop yields in the open field. More specifically, the invention provides a method of preventing or treating contaminations of cereals by fungi or molds producing mycotoxins, comprising spraying in fields an aqueous suspension of spores of a microorganism of the family of Geotrichum candidum with the following characteristics:
- Mycotoxin-producing fungi or molds are in particular of the Fusarium species.
- an aqueous suspension of spores of a strain of Geotrichum candidum derived from yeasts used in malting is sprayed. More preferably, these spores come from one of the strains deposited on September 6, 1994 under Nos. 1.1474 and 1.1975.
- the spores of Geotrichum candidum are produced by the SKW biosystems system (BP20 77260 LA FERTE-SOUS-JOUARRE).
- the spores are conditioned in solution at an approximate concentration of 5 ⁇ 10 8 units forming a colony per ml, (FCU) called mother solution.
- FCU colony per ml
- the concentration of Geotrichum candidum is diluted in an aqueous solution in a ratio of 1 to
- microorganisms such as lactic acid bacteria, having a known effect in the biological control of the development of pathogenic microorganisms, are associated with Geotrichum candidum in the aqueous suspension.
- the spores of Geotrichum candidum are sown by spraying an aqueous spore suspension in the field using sprayers conventionally used for herbicide, fungicide or insecticide treatments of field crops.
- the sowing period is chosen from the different stages of the vegetation (tillering, start of run, 1 knot, 2 knots, 3 knots, swelling, exit from last leaf, last leaf spread, bursting of the seed, heading and flowering).
- the seeding is carried out at once or in several times, at the different stages of the vegetation. Preferably, the seeding is carried out all at once, at the earing-flowering stage of the development of the cereals.
- the invention thus makes it possible to treat cereals contaminated with fungi.
- the cereals processed are in particular wheat, barley, rye, oats, corn or triticale.
- the spraying of a suspension of spores of the Geotrichum candidum family is associated with a fungicidal treatment.
- the results provided in the experimental part of the present text show an optimum effectiveness in terms of reduction in the production of mycotoxins and yield of crops in the fields when the spraying is carried out in combination with a fungicide treatment.
- the fungicidal treatment includes the use of any type of fungicidal product alone or in combination according to known methods allowing a reduction in contamination by the fungal flora or in the production of mycotoxins. Examples of fungicide products are azoxystobin, bromuconazole, tebuconazole, epoxyconazole or kresoxymethyl.
- the fungicide treatment is preferably applied at the last leaf stage of the development of the cereal or at the flowering stage.
- An example of a fungicide treatment carried out at the last leaf stage includes kresoximmethyl and epoxiconazole.
- An example of a fungicide treatment carried out at the flowering stage includes azoxystobin and bromuconazole.
- the fungicide can be applied separately to the aqueous suspension comprising the spores or directly added to the aqueous suspension of spores of Geotrichum candidum.
- the invention therefore relates to the use of a microorganism from the family of Geotrichum candidum in the manufacture of a preparation capable of treating or preventing diseases resulting from the contamination of cultures by fungi or molds, in particular foot rot, powdery mildew, rust, septotriosis, helminthosporiosis, rynchosporosis and fusarium wilt.
- the invention also relates to the use of a Geotrichum candidum microorganism in the manufacture of a preparation capable of decreasing by at least 30% and preferably at least 50% the production of mycotoxins when growing cereal crops, fruits, vegetables and vines.
- the microorganisms of the Geotrichum candidum family are used in the preparation of aqueous spore suspensions allowing the spraying of 10 9 to 10 13 spores per hectare.
- the use of a microorganism of the Geotrichum candidum family as described above is associated with one or more fungicides. More preferably, the associated fungicides are chosen from azoxystobin, bromuconazole, epoxyconazole, krezoxymethyl or a combination of these.
- Biological control can also be achieved by the use of a combination of different microorganisms. Indeed, it may be advantageous to combine the inhibitory effects of several microorganisms when they are complementary, in particular a fungus and a bacterium.
- the invention relates to the use of Geotrichum candidum in combination with other microorganisms, such as lactic acid bacteria, which can play a beneficial role in the biological control of contamination or the production of mycotoxins.
- Example 1 Comparison of the Percentage of Fusarium and Geotrichum Contamination on the Cobs as a Function of the Treatment Method Chosen To quantify the effect of spraying a suspension of Geotrichum candidum. 1 liter of stock solution per hectare containing 5 ⁇ 10 11 spores per liter (malting yeast IFBM, product of SKW Biosystem) was sprayed after dilution at different stages of the vegetation in order to obtain an implantation of Geotrichum candidum on the cobs.
- the fungicide treatment used is a spray treatment of 0.5 liters of azoxystobin at 250 g / l ("Amistar” from Zeneca-Sopra) and 0.6 liters of a mixture of bromuconazole at 167 g / l and tebuconazole at 107 g / l (“Soleil” by Rhône-Poulenc Agro).
- Example 2 Comparison of the quantity of mycotoxins produced and the yields of the cultures according to the chosen treatment method
- Tables 2 and 3 are intended to show the effect of the treatment of Geotrichum candidum on the reduction of the production of mycotoxins during vegetation. This demonstration is carried out through the assay of deoxynivalenoi, the mycotoxin produced by Fusarium. most encountered on cereals. The experiments were carried out on wheat crops in 100 m 2 test plots (Table 2) in combination with a fungicide treatment (Amistar and sun) and in the open field (several hectares) (Table 3) in combination with a fungicide treatment by spraying with epoxiconazole at 125 g / l and kresoximmethyl at 125 g / l (OGAM treatment by BASF). TABLE 2:
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- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- General Health & Medical Sciences (AREA)
- Mycology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Zoology (AREA)
- Pest Control & Pesticides (AREA)
- Biotechnology (AREA)
- Plant Pathology (AREA)
- Virology (AREA)
- Agronomy & Crop Science (AREA)
- Dentistry (AREA)
- Wood Science & Technology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001285997A AU2001285997A1 (en) | 2000-08-22 | 2001-08-21 | Biological control of fungal contamination by applying geotrichum candidum |
CA002419421A CA2419421A1 (fr) | 2000-08-22 | 2001-08-21 | Controle biologique de la contamination fongique par l'application de geotrichum candidum |
EP01965335A EP1322172A1 (fr) | 2000-08-22 | 2001-08-21 | Controle biologique de la contamination fongique par l'application de geotrichum candidum |
US10/370,583 US20040081639A1 (en) | 2000-08-22 | 2003-02-24 | Biological control of fungal contamination by applying geotrichum candidum |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR00/10815 | 2000-08-22 | ||
FR0010815A FR2813166B1 (fr) | 2000-08-22 | 2000-08-22 | Procede de controle biologique de la contamination fongique des cereales par l'application de geotrichum candidum au cours de la vegetation |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/370,583 Continuation US20040081639A1 (en) | 2000-08-22 | 2003-02-24 | Biological control of fungal contamination by applying geotrichum candidum |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002019827A1 true WO2002019827A1 (fr) | 2002-03-14 |
Family
ID=8853657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2001/002644 WO2002019827A1 (fr) | 2000-08-22 | 2001-08-21 | Controle biologique de la contamination fongique par l'application de geotrichum candidum |
Country Status (6)
Country | Link |
---|---|
US (1) | US20040081639A1 (fr) |
EP (1) | EP1322172A1 (fr) |
AU (1) | AU2001285997A1 (fr) |
CA (1) | CA2419421A1 (fr) |
FR (1) | FR2813166B1 (fr) |
WO (1) | WO2002019827A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007003320A1 (fr) * | 2005-06-30 | 2007-01-11 | Syngenta Participations Ag | Méthode de réduction de la contamination d'une récolte par les mycotoxines |
CN105284794A (zh) * | 2015-12-05 | 2016-02-03 | 济南舜昊生物科技有限公司 | 一种用于防治黄瓜白粉病的微囊悬浮剂 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2841436B1 (fr) * | 2002-07-01 | 2006-01-27 | Univ Bourgogne | Moyens de lutte biologique contre les maladies cryptogamiques des vegetaux |
WO2009060012A2 (fr) * | 2007-11-06 | 2009-05-14 | Basf Se | Compositions de phytoprotection comprenant un microorganisme utile et un pesticide |
FR3012725B1 (fr) * | 2013-11-07 | 2016-12-23 | Agro Industrie Rech Et Developpements A R D | Compositions d'agents de lutte biologique, leur procede de preparation et leurs utilisations |
WO2021050927A2 (fr) * | 2019-09-13 | 2021-03-18 | California Safe Soil, LLC | Compositions d'hydrolysats de levures et leurs méthodes d'utilisation |
CN115044479B (zh) * | 2022-04-13 | 2024-03-29 | 茅台学院 | 一种具有高乳酸耐受性的白地霉菌株及其应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1274291A (en) * | 1969-04-29 | 1972-05-17 | Jacques Jean Louis Ricard | Counteracting harmful micri-organisms in a substrate with microbial commensals and other agents |
JPS61200193A (ja) * | 1985-03-01 | 1986-09-04 | Katakura Chitsukarin Kk | 植物の根圏土壌改良剤 |
WO1996034085A1 (fr) * | 1995-04-24 | 1996-10-31 | Institut Français Des Boissons De La Brasserie Malterie | Ensemencement par geotrichum candidum au cours du maltage de cereales ou autres vegetaux |
US5668008A (en) * | 1995-07-28 | 1997-09-16 | The United States Of America, As Represented By The Secretary Of Agriculture | Avirulent geotrichum candidum for biological control of postharvest rots on fruit |
-
2000
- 2000-08-22 FR FR0010815A patent/FR2813166B1/fr not_active Expired - Fee Related
-
2001
- 2001-08-21 AU AU2001285997A patent/AU2001285997A1/en not_active Abandoned
- 2001-08-21 EP EP01965335A patent/EP1322172A1/fr not_active Withdrawn
- 2001-08-21 WO PCT/FR2001/002644 patent/WO2002019827A1/fr not_active Application Discontinuation
- 2001-08-21 CA CA002419421A patent/CA2419421A1/fr not_active Abandoned
-
2003
- 2003-02-24 US US10/370,583 patent/US20040081639A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1274291A (en) * | 1969-04-29 | 1972-05-17 | Jacques Jean Louis Ricard | Counteracting harmful micri-organisms in a substrate with microbial commensals and other agents |
JPS61200193A (ja) * | 1985-03-01 | 1986-09-04 | Katakura Chitsukarin Kk | 植物の根圏土壌改良剤 |
WO1996034085A1 (fr) * | 1995-04-24 | 1996-10-31 | Institut Français Des Boissons De La Brasserie Malterie | Ensemencement par geotrichum candidum au cours du maltage de cereales ou autres vegetaux |
US5668008A (en) * | 1995-07-28 | 1997-09-16 | The United States Of America, As Represented By The Secretary Of Agriculture | Avirulent geotrichum candidum for biological control of postharvest rots on fruit |
Non-Patent Citations (6)
Title |
---|
BIOCONTROL SCI.TECHNOL., vol. 3, no. 1, 1993, pages 13 - 19 * |
DATABASE BIOSIS [online] BIOSCIENCES INFORMATION SERVICE, PHILADELPHIA, PA, US; V.-N. TARIO ET AL.: "INFLUENCE OF VOLATILE METABOLITES FROM GEOTRICHUM-CANDIDUM ON OTHER FUNGI", XP002166911, retrieved from EPOQUE accession no. PREV199192092315 * |
DATABASE CROPU [online] M.J.HINTON ET AL.: "Screening Selected Fungi for Antagonism Towards Pseudocercosporella herpotrichoides (Fron) Deighton, the Cause of Eyespot Disease of Cereals", XP002166910, retrieved from STN-INTERNATIONAL accession no. 1993-85219 CROPU * |
DATABASE WPI Section Ch Week 198642, Derwent World Patents Index; Class C04, AN 1986-275238, XP002166912 * |
MYCOLOGOCAL RESEARCH, vol. 95, no. 7, 1991, pages 891 - 893 * |
PATENT ABSTRACTS OF JAPAN vol. 110, no. 30 (C - 400) 29 January 1987 (1987-01-29) * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007003320A1 (fr) * | 2005-06-30 | 2007-01-11 | Syngenta Participations Ag | Méthode de réduction de la contamination d'une récolte par les mycotoxines |
RU2451449C2 (ru) * | 2005-06-30 | 2012-05-27 | Зингента Партисипейшнс Аг | Способ снижения уровня загрязнения урожая микотоксинами |
US8716180B2 (en) | 2005-06-30 | 2014-05-06 | Syngenta Crop Protection Llc | Method of reducing mycotoxin contamination of the harvest |
CN105284794A (zh) * | 2015-12-05 | 2016-02-03 | 济南舜昊生物科技有限公司 | 一种用于防治黄瓜白粉病的微囊悬浮剂 |
Also Published As
Publication number | Publication date |
---|---|
US20040081639A1 (en) | 2004-04-29 |
FR2813166A1 (fr) | 2002-03-01 |
EP1322172A1 (fr) | 2003-07-02 |
CA2419421A1 (fr) | 2002-03-14 |
AU2001285997A1 (en) | 2002-03-22 |
FR2813166B1 (fr) | 2003-05-02 |
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