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

The New Phytologist
Liesje MommerAlex J Dumbrell

Abstract

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 p...Continue Reading

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Citations

Nov 20, 2018·The New Phytologist·Jonathan A Bennett, John Klironomos
Nov 16, 2019·Biological Reviews of the Cambridge Philosophical Society·Madhav P ThakurErin K Cameron
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Nov 14, 2021·Environmental Monitoring and Assessment·Adnan Bilgili, Emre Çomaklı

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Datasets Mentioned

BETA
PRJEB18545

Methods Mentioned

BETA
PCR
PCRs

Software Mentioned

reshape 2
lmer T est
vegan
BLAST
R R Development Core
PERMANOVA
Basic Local Alignment Search Tool last
lme
ggplot
enn D iagram

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