Lost in diversity: the interactions between soil-borne fungi, biodiversity and plant productivity.

Autor: Mommer L; Plant Ecology and Nature Conservation Group, Wageningen University, PO Box 47, Wageningen, 6700 AA, the Netherlands., Cotton TEA; School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, CO4 3SQ, UK.; Department of Animal and Plant Sciences, University of Sheffield, South Yorkshire, S10 2TN, UK., Raaijmakers JM; Department of Microbial Ecology, Netherlands Institute for Ecology (NIOO-KNAW), PO Box 50, Wageningen, 6700 AB, the Netherlands., Termorshuizen AJ; Soil Cares Research, Nieuwe Kanaal 7C, Wageningen, 6709 PA, the Netherlands., van Ruijven J; Plant Ecology and Nature Conservation Group, Wageningen University, PO Box 47, Wageningen, 6700 AA, the Netherlands., Hendriks M; Institute for Water and Wetland Research, Experimental Plant Ecology, Radboud University Nijmegen, PO Box 9010, Nijmegen, 6500 GL, the Netherlands., van Rijssel SQ; Plant Ecology and Nature Conservation Group, Wageningen University, PO Box 47, Wageningen, 6700 AA, the Netherlands., van de Mortel JE; HAS University of Applied Sciences, Department of Applied Biology, University of Applied Sciences, Spoorstraat 62, Venlo, 5911 KJ, the Netherlands., van der Paauw JW; Plant Ecology and Nature Conservation Group, Wageningen University, PO Box 47, Wageningen, 6700 AA, the Netherlands., Schijlen EGWM; Wageningen University and Research BU Bioscience, PO Box 16, Wageningen, 6700 AA, the Netherlands., Smit-Tiekstra AE; Institute for Water and Wetland Research, Experimental Plant Ecology, Radboud University Nijmegen, PO Box 9010, Nijmegen, 6500 GL, the Netherlands., Berendse F; Plant Ecology and Nature Conservation Group, Wageningen University, PO Box 47, Wageningen, 6700 AA, the Netherlands., de Kroon H; Institute for Water and Wetland Research, Experimental Plant Ecology, Radboud University Nijmegen, PO Box 9010, Nijmegen, 6500 GL, the Netherlands., Dumbrell AJ; School of Biological Sciences, University of Essex, Wivenhoe Park, Colchester, CO4 3SQ, UK.
Jazyk: angličtina
Zdroj: The New phytologist [New Phytol] 2018 Apr; Vol. 218 (2), pp. 542-553. Date of Electronic Publication: 2018 Feb 22.
DOI: 10.1111/nph.15036
Abstrakt: There is consensus that plant species richness enhances plant productivity within natural grasslands, but the underlying drivers remain debated. Recently, differential accumulation of soil-borne fungal pathogens across the plant diversity gradient has been proposed as a cause of this pattern. However, the below-ground environment has generally been treated as a 'black box' in biodiversity experiments, leaving these fungi unidentified. Using next generation sequencing and pathogenicity assays, we analysed the community composition of root-associated fungi from a biodiversity experiment to examine if evidence exists for host specificity and negative density dependence in the interplay between soil-borne fungi, plant diversity and productivity. Plant species were colonised by distinct (pathogenic) fungal communities and isolated fungal species showed negative, species-specific effects on plant growth. Moreover, 57% of the pathogenic fungal operational taxonomic units (OTUs) recorded in plant monocultures were not detected in eight plant species plots, suggesting a loss of pathogenic OTUs with plant diversity. Our work provides strong evidence for host specificity and negative density-dependent effects of root-associated fungi on plant species in grasslands. Our work substantiates the hypothesis that fungal root pathogens are an important driver of biodiversity-ecosystem functioning relationships.
(© 2018 The Authors. New Phytologist © 2018 New Phytologist Trust.)
Databáze: MEDLINE
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