Effects of Jasmonic Acid Signalling on the Wheat Microbiome Differ Between Body Sites

Overview

Journal Sci Rep

Specialty Science

Date 2017 Jan 31

PMID 28134326

Citations 41

Authors

Hongwei Liu

Lilia C Carvalhais

Peer M Schenk

Paul G Dennis

Affiliations

Soon will be listed here.

Abstract

Jasmonic acid (JA) signalling helps plants to defend themselves against necrotrophic pathogens and herbivorous insects and has been shown to influence the root microbiome of Arabidopsis thaliana. In this study, we determined whether JA signalling influences the diversity and functioning of the wheat (Triticum aestivum) microbiome and whether these effects are specific to particular parts of the plant. Activation of the JA pathway was achieved via exogenous application of methyl jasmonate and was confirmed by significant increases in the abundance of 10 JA-signalling-related gene transcripts. Phylogenetic marker gene sequencing revealed that JA signalling reduced the diversity and changed the composition of root endophytic but not shoot endophytic or rhizosphere bacterial communities. The total enzymatic activity and substrate utilisation profiles of rhizosphere bacterial communities were not affected by JA signalling. Our findings indicate that the effects of JA signalling on the wheat microbiome are specific to individual plant compartments.

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