Oxidative stress activates ATMPK6, an Arabidopsis homologue of MAP kinase

被引：122

作者：

Yuasa, T ^{[1
]}

Ichimura, K ^{[1
]}

Mizoguchi, T ^{[1
]}

Shinozaki, K ^{[1
]}

机构：

[1] RIKEN, Tsukuba Inst, Plant Mol Biol Lab, Tsukuba, Ibaraki 3050074, Japan

来源：

PLANT AND CELL PHYSIOLOGY | 2001年 / 42卷 / 09期

基金：

日本科学技术振兴机构;

关键词：

Arabidopsis; MAP kinase; oxidative stress; phosphorylation;

D O I：

10.1093/pcp/pce123

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Mitogen-activated protein kinase (MAPK) cascades function in biotic and abiotic stress responses in plants. We analysed effect of oxidative stress on the activation of ATMPK6, an Arabidopsis thaliana MAPK, in Arabidopsis T87 cultured cells and rosette leaves using anti-ATMPK6 specific antibody. ATMPK6 in T87 cells was strongly activated by reactive oxygen species (ROS) such as H2O2 and KO2. In leaves, ATMPK6 was activated by paraquat and 3-amino-1,2,4-triazole (a catalase inhibitor). These results indicate that ATMPK6 is one of the candidates for signal mediators in response to abiotic or biotic sources for ROS in Arabidopsis.

引用

页码：1012 / 1016

页数：5

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