H2O2 activates a MAP kinase-like enzyme in Arabidopsis thaliana suspension cultures

被引：71
|
作者：
Desikan, R [1 ]
Clarke, A [1 ]
Hancock, JT [1 ]
Neill, SJ [1 ]
机构：
[1] Univ W England, Dept Biol & Biomed Sci, Bristol BS16 1QY, Avon, England
来源：
JOURNAL OF EXPERIMENTAL BOTANY | 1999年 / 50卷 / 341期
关键词：
H2O2; MAP kinase; Arabidopsis;
D O I：
10.1093/jexbot/50.341.1863
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Treatment of Arabidopsis thaliana suspension cultures with H2O2 results in the activation of a 44 kDa protein kinase with the characteristics of a mitogen activated protein (MAP) kinase, It preferentially phosphorylates myelin basic protein as an artificial substrate, it requires tyrosine phosphorylation for its activity, is tyrosine and threonine phosphorylated upon activation, and its activation is rapid, transient, and occurs in a dose-dependent manner. This is the first demonstration of the activation of a MAP kinase-like enzyme by H2O2 in plants.
引用
收藏
页码：1863 / 1866
页数：4
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