拟南芥MAPK磷酸酶在胁迫反应中的新功能  

Emerging Functions of Arabidopsis MAP Kinase Phosphatases in Stress Response

作　　者：姜翠茹[1] 沈晓艳[1] 王增兰[1] 

机构地区：[1]山东师范大学生命科学学院,济南250014

出　　处：《湖北农业科学》2011年第11期2165-2167,共3页Hubei Agricultural Sciences

基　　金：山东省自然科学基金项目(ZR2010CM036)

摘　　要：可逆磷酸化是控制蛋白质活性的关键机制,在促分裂原活化蛋白激酶(MAPK)信号级联途径中,MAPK的磷酸化与去磷酸化之间的平衡决定了其活性,从而决定了胞内反应的进行,MAPK的磷酸酶MKPs是其重要的负调控因子,主要介绍了拟南芥MAPK磷酸酶MKP2、PP2C、IBR5在臭氧胁迫、脱落酸和生长素信号途径中的作用。Reversible phosphorylation is a crucial regulatory mechanism that controls the protein activity.In mitogen-activated protein kinase（MAPK） signaling cascades,the intra cellular response was determined on MAPK activation,which relayed on the balance between phosphorylation and dephosphorylation.MAPK phosphatases（MKPs） were the major negative regulators of MAPKs.The role Arabidopsis MKPs MKP2、PP2C and IBR5 played in O3 stress response,and abscisic acid and auxin signaling was summarized.

关 键 词：MAPK信号级联途径 MAPK磷酸酶 MKP2 PP2C IBR5 

分 类 号：S949.748.3[农业科学—水产养殖]