Deciphering the role of specialist and generalist plant-microbial interactions as drivers of plant-soil feedback.

Autor: Semchenko M; Institute of Ecology and Earth Sciences, University of Tartu, Liivi 2, 50409, Tartu, Estonia.; Department of Earth and Environmental Sciences, University of Manchester, Oxford Road, Manchester, M13 9PT, UK., Barry KE; Ecology and Biodiversity, Department of Biology, Institute of Science, Utrecht University, Padualaan 8, Utrecht, the Netherlands., de Vries FT; Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, PO Box 94240, 1090 GE, Amsterdam, the Netherlands., Mommer L; Plant Ecology and Nature Conservation, Wageningen University & Research, PO Box 47, 6700 AA, Wageningen, the Netherlands., Moora M; Institute of Ecology and Earth Sciences, University of Tartu, Liivi 2, 50409, Tartu, Estonia., Maciá-Vicente JG; Plant Ecology and Nature Conservation, Wageningen University & Research, PO Box 47, 6700 AA, Wageningen, the Netherlands.
Jazyk: angličtina
Zdroj: The New phytologist [New Phytol] 2022 Jun; Vol. 234 (6), pp. 1929-1944. Date of Electronic Publication: 2022 Apr 16.
DOI: 10.1111/nph.18118
Abstrakt: Feedback between plants and soil microbial communities can be a powerful driver of vegetation dynamics. Plants elicit changes in the soil microbiome that either promote or suppress conspecifics at the same location, thereby regulating population density-dependence and species co-existence. Such effects are often attributed to the accumulation of host-specific antagonistic or beneficial microbiota in the rhizosphere. However, the identity and host-specificity of the microbial taxa involved are rarely empirically assessed. Here we review the evidence for host-specificity in plant-associated microbes and propose that specific plant-soil feedbacks can also be driven by generalists. We outline the potential mechanisms by which generalist microbial pathogens, mutualists and decomposers can generate differential effects on plant hosts and synthesize existing evidence to predict these effects as a function of plant investments into defence, microbial mutualists and dispersal. Importantly, the capacity of generalist microbiota to drive plant-soil feedbacks depends not only on the traits of individual plants but also on the phylogenetic and functional diversity of plant communities. Identifying factors that promote specialization or generalism in plant-microbial interactions and thereby modulate the impact of microbiota on plant performance will advance our understanding of the mechanisms underlying plant-soil feedback and the ways it contributes to plant co-existence.
(© 2022 The Authors. New Phytologist © 2022 New Phytologist Foundation.)
Databáze: MEDLINE
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