Plant Nutrient Resource Use Strategies Shape Active Rhizosphere Microbiota Through Root Exudation.

ABSTRACT: Plant strategies for soil nutrient uptake have the potential to strongly influence plant-microbiota interactions, due to the competition between plants and microorganisms for soil nutrient acquisition and/or conservation. In the present study, we investigate whether these plant strategies could influence rhizosphere microbial activities via root exudation, and contribute to the microbiota diversification of active bacterial communities colonizing the root-adhering soil (RAS) and inhabiting the root tissues. We applied a DNA-based stable isotope probing (DNA-SIP) approach to six grass species distributed along a gradient of plant nutrient resource strategies, from conservative species, characterized by low nitrogen (N) uptake, a long lifespans and low root exudation level, to exploit

SUBMITTER: Guyonnet JP 

PROVIDER: S-EPMC6265440 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature