Evidence of a role for tyrosine dephosphorylation in the control of postgermination arrest of development by abscisic acid in Arabidopsis thaliana L

被引：0
|
作者：
David Reyes
Dolores Rodríguez
Gregorio Nicolás
Carlos Nicolás
机构：
[1] Universidad de Salamanca,Departamento de Fisiología Vegetal, Facultad de Biología, Centro Hispano
来源：
Planta | 2006年 / 223卷
关键词：
Abscisic acid; Germination growth arrest; MAPK signaling; (ABA-responsive gene); Tyrosine phosphatase;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In the present paper evidence is presented indicating that tyrosine dephosphorylation is a key regulatory mechanism in postgermination arrest of Arabidopsis thaliana L. seed development mediated by abscisic acid (ABA). By using phenylarsine oxide (PAO), an inhibitor of tyrosine phosphatases, the sensitivity to the inhibitory effect of ABA on seed germination is enhanced. Consistent with this finding, we demonstrate that the ABA-responsive gene, RAB18, is hyperinduced in seeds imbibed in ABA plus PAO, compared with seeds imbibed only with ABA.
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页码：381 / 385
页数：4
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