Resistance and resilience of root fungal communities to water limitation in a temperate agroecosystem

Ecology and Evolution
Jessie R FurzeMarney E Isaac

Abstract

Understanding crop resilience to environmental stress is critical in predicting the consequences of global climate change for agricultural systems worldwide, but to date studies addressing crop resiliency have focused primarily on plant physiological and molecular responses. Arbuscular mycorrhizal fungi (AMF) form mutualisms with many crop species, and these relationships are key in mitigating the effects of abiotic stress in many agricultural systems. However, to date there is little research examining whether (1) fungal community structure in agroecosystems is resistant to changing environmental conditions, specifically water limitation and (2) resilience of fungal community structure is moderated by agricultural management systems, namely the integration of trees into cropping systems. Here, we address these uncertainties through a rainfall reduction field experiment that manipulated short-term water availability in a soybean-based (Glycine max L. Merr.) agroforest in Southern Ontario, Canada. We employed terminal restriction fragment length polymorphism analysis to determine the molecular diversity of both general fungal and AMF communities in soybean roots under no stress, stress (rainfall shelters added), and poststress (...Continue Reading

References

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Citations

Sep 14, 2018·FEMS Microbiology Ecology·Te Anne Cotton
Aug 15, 2018·Annals of Botany·Fallon J HayesAdam R Martin
Oct 28, 2019·The Biochemical Journal·Kyle Hartman, Susannah G Tringe

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Methods Mentioned

BETA
environmental stress
environmental stresses
electrophoresis
PCR

Software Mentioned

vegan R package
R

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