RRC ID 32632
Author Narusaka M, Minami T, Iwabuchi C, Hamasaki T, Takasaki S, Kawamura K, Narusaka Y.
Title Yeast cell wall extract induces disease resistance against bacterial and fungal pathogens in Arabidopsis thaliana and Brassica crop.
Journal PLoS One
Abstract Housaku Monogatari (HM) is a plant activator prepared from a yeast cell wall extract. We examined the efficacy of HM application and observed that HM treatment increased the resistance of Arabidopsis thaliana and Brassica rapa leaves to bacterial and fungal infections. HM reduced the severity of bacterial leaf spot and anthracnose on A. thaliana and Brassica crop leaves with protective effects. In addition, gene expression analysis of A. thaliana plants after treatment with HM indicated increased expression of several plant defense-related genes. HM treatment appears to induce early activation of jasmonate/ethylene and late activation of salicylic acid (SA) pathways. Analysis using signaling mutants revealed that HM required SA accumulation and SA signaling to facilitate resistance to the bacterial pathogen Pseudomonas syringae pv. maculicola and the fungal pathogen Colletotrichum higginsianum. In addition, HM-induced resistance conferred chitin-independent disease resistance to bacterial pathogens in A. thaliana. These results suggest that HM contains multiple microbe-associated molecular patterns that activate defense responses in plants. These findings suggest that the application of HM is a useful tool that may facilitate new disease control methods.
Volume 10(1)
Pages e0115864
Published 2015-1-1
DOI 10.1371/journal.pone.0115864
PII PONE-D-14-20977
PMID 25565273
PMC PMC4286235
MeSH Arabidopsis / genetics* Arabidopsis / metabolism Arabidopsis / microbiology Arabidopsis Proteins / genetics Arabidopsis Proteins / metabolism Brassica / genetics* Brassica / metabolism Brassica / microbiology Cell Wall / chemistry Cell Wall / metabolism Chitinases / genetics Chitinases / metabolism Colletotrichum / drug effects* Colletotrichum / physiology Cyclopentanes / metabolism Disease Resistance / genetics Ethylenes / metabolism Gene Expression Regulation, Plant / drug effects Oxylipins / metabolism Plant Diseases / microbiology Plant Growth Regulators / chemistry Plant Growth Regulators / metabolism Plant Growth Regulators / pharmacology* Plant Leaves / metabolism Plant Leaves / microbiology Pseudomonas syringae / drug effects* Pseudomonas syringae / physiology Salicylic Acid / metabolism Signal Transduction / drug effects Yeasts / chemistry Yeasts / metabolism
IF 2.74
Times Cited 19
Arabidopsis / Cultured plant cells, genes sja05800