Different roles of glycine-rich RNA-binding protein7 in plant defense against Pectobacterium carotovorum, Botrytis cinerea, and tobacco mosaic viruses

Hwa Jung Lee; Jin Seo Kim; Seung Jin Yoo; Eun Young Kang; Song Hee Han; Kwang-Yeol Yang; Young Cheol Kim; Brian McSpadden Gardener; Hunseung Kang

doi:10.1016/j.plaphy.2012.07.020

Different roles of glycine-rich RNA-binding protein7 in plant defense against Pectobacterium carotovorum, Botrytis cinerea, and tobacco mosaic viruses

Plant Physiol Biochem. 2012 Nov:60:46-52. doi: 10.1016/j.plaphy.2012.07.020. Epub 2012 Aug 3.

Authors

Hwa Jung Lee¹, Jin Seo Kim, Seung Jin Yoo, Eun Young Kang, Song Hee Han, Kwang-Yeol Yang, Young Cheol Kim, Brian McSpadden Gardener, Hunseung Kang

Affiliation

¹ Department of Plant Biotechnology and Kumho Life Science Laboratory, College of Agriculture and Life Sciences, Chonnam National University, 300 Yongbong-dong, Buk-gu, Gwangju 500-757, Republic of Korea.

PMID: 22902796
DOI: 10.1016/j.plaphy.2012.07.020

Abstract

Glycine-rich RNA-binding protein7 (AtGRP7) has previously been demonstrated to confer plant defense against Pseudomonas syringae DC3000. Here, we show that AtGRP7 can play different roles in plant defense against diverse pathogens. AtGRP7 enhances resistance against a necrotrophic bacterium Pectobacterium carotovorum SCC1 or a biotrophic virus tobacco mosaic virus. By contrast, AtGRP7 plays a negative role in defense against a necrotrophic fungus Botrytis cinerea. These results provide evidence that AtGRP7 is a potent regulator in plant defense response to diverse pathogens, and suggest that the regulation of RNA metabolism by RNA-binding proteins is important for plant innate immunity.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Arabidopsis / genetics
Arabidopsis / immunology
Arabidopsis / metabolism
Arabidopsis / microbiology
Arabidopsis Proteins / genetics
Arabidopsis Proteins / metabolism*
Botrytis / physiology*
Disease Susceptibility
Gene Expression Regulation, Plant
Mutation
Pectobacterium carotovorum / physiology*
Plant Diseases / immunology*
Plant Diseases / microbiology
Plant Immunity
Plant Leaves / genetics
Plant Leaves / immunology
Plant Leaves / metabolism
Plant Leaves / microbiology
Plants, Genetically Modified
RNA, Plant / genetics
RNA, Plant / metabolism
RNA-Binding Proteins / genetics
RNA-Binding Proteins / metabolism*
Tobacco Mosaic Virus / physiology*

Substances

ATGRP7 protein, Arabidopsis
Arabidopsis Proteins
RNA, Plant
RNA-Binding Proteins