Fungal diversity regulates plant-soil feedbacks in temperate grassland

Semchenko, M. and Leff, J.W. and Lozano, Y.M. and Saar, S. and Davison, J. and Wilkinson, A. and Jackson, B.G. and Pritchard, W.J. and De Long, J.R. and Oakley, S. and Mason, K.E. and Ostle, N.J. and Baggs, E.M. and Johnson, D. and Fierer, N. and Bardgett, R.D. (2018) Fungal diversity regulates plant-soil feedbacks in temperate grassland. Science Advances, 4 (11). ISSN 2375-2548

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Abstract

Feedbacks between plants and soil microbial communities play an important role in vegetation dynamics, but the underlying mechanisms remain unresolved. Here, we show that the diversity of putative pathogenic, mycorrhizal, and saprotrophic fungi is a primary regulator of plant-soil feedbacks across a broad range of temperate grassland plant species. We show that plant species with resource-acquisitive traits, such as high shoot nitrogen concentrations and thin roots, attract diverse communities of putative fungal pathogens and specialist saprotrophs, and a lower diversity of mycorrhizal fungi, resulting in strong plant growth suppression on soil occupied by the same species. Moreover, soil properties modulate feedbacks with fertile soils, promoting antagonistic relationships between soil fungi and plants. This study advances our capacity to predict plant-soil feedbacks and vegetation dynamics by revealing fundamental links between soil properties, plant resource acquisition strategies, and the diversity of fungal guilds in soil. Copyright © 2018 The Authors, some rights reserved.

Item Type:
Journal Article
Journal or Publication Title:
Science Advances
Subjects:
ID Code:
129680
Deposited By:
Deposited On:
13 Dec 2018 08:50
Refereed?:
Yes
Published?:
Published
Last Modified:
16 Sep 2020 05:07