Transcription factor WRKY30 mediates resistance to Cucumber mosaic virus in Arabidopsis.

Abstract:

:WRKY transcription factors are key regulators in regulating abiotic or biotic stress response in Arabidopsis. Previous studies showed that WRKY30 expression was induced by oxidative stress treatment, fungal elicitor, SA and ABA. However, functions of WRKY30 on viral defense are not well studied. Here, we found that Arabidopsis WRKY DNA binding protein 30 (WRKY30) plays essential roles in regulating Cucumber mosaic virus (CMV) resistance. The expression of WRKY30 was induced by CMV infection and wrky30 mutant displayed more susceptibility (including higher oxidative damages, induced reactive oxygen species synthesis and more PSII photochemistry compromise), while WRKY30 overexpression plants (WRKY30OX) exhibited more resistance to CMV infection. Moreover BRs-induced CMV tolerance is partly dependent on WRKY30. And WRKY30 expression increased after BL treatment. All these demonstrated that WRKY30 works as a positive regulator in plant CMV resistance process.

authors

Zou L,Yang F,Ma Y,Wu Q,Yi K,Zhang D

doi

10.1016/j.bbrc.2019.07.030

subject

Has Abstract

pub_date

2019-09-10 00:00:00

pages

118-124

issue

1

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(19)31368-3

journal_volume

517

pub_type

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