Abstract
Parasitic plant species, such as holoparasites, develop exclusively within the tissues of their hosts, are devoid of photosynthetic capability, and cause changes in their hosts. In this study, we analyse the effects of the holoparasitic species Pilostyles blanchetii on Mimosa maguirei. We assessed the effects of the holoparasite on the architecture and development of the host plant through the height, the number of branches and the number of leaves. The influence of the holoparasite on the reproductive performance of the host was tested by evaluating the number of fruits and seeds produced by M. maguirei. The holoparasite Pilostyles blanchetii negatively affected the height of M. maguirei; however, there was a positive effect on the number of branches and leaves of the host, perhaps indicating resource manipulation by the holoparasite. In relation to reproductive performance, there was a reduction in the number of fruits and seeds in parasitized individuals. Overall, this study indicates strong changes in host plant architecture and particularly a reduction in the reproductive performance of parasitized plant individuals.
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The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
We thank V. Carvalho and A.A. Efremova for laboratory assistance and commenting on earlier version of this manuscript, two anonymous reviewers for their comments and observation, which helped to considerable improve the original version of this manuscript, and the Reserva Vellozia for logistics in the field. This work was supported by the graduate programme in Ecology, Conservation and Wildlife Management (UFMG), by the Long Term Ecological Research programme of the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and Fapemig, and by the AngloAmerican Foundation.
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Fernandes, G.W., Paschoal, A.M.O., Da Rocha, W.D. et al. Contrasting architectural and reproductive parameters in Mimosa maguirei in response to holoparasitism by Pilostyles blanchetii. Folia Geobot 58, 21–29 (2023). https://doi.org/10.1007/s12224-023-09424-7
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DOI: https://doi.org/10.1007/s12224-023-09424-7