《植物生理学报》 2012, 48(6): 527-536

拟南芥AtMPK6的信号转导功能和参与发育调控的研究进展

张丹, 周严, 孔祥培, 潘教文, 李德全*

山东农业大学生命科学学院, 作物生物学国家重点实验室, 山东泰安271018

通信作者：李德全；E-mail: dqli@sdau.edu.cn；Tel: 0538-8249137

摘　要：

促分裂原活化蛋白激酶(MAPK)级联途径主要由MAPKKK、MAPKK和MAPK三个组分构成, 彼此逐级磷酸化进而 传递细胞信号。这些激酶可以将信息从感应器传递到效应器, 并在胞内外信号传递中起多种作用。同时, MAPK级联途径 通过相互“交谈”形成复杂的信号传递网络, 从而有效地传递各种特异信号。迄今为止, 拟南芥AtMPK3、AtMPK4和At- MPK6是研究最多的MAPKs。本文综述AtMPK6参与调控植物对逆境胁迫的响应, 以及在生长发育过程中的作用, 并介绍 AtMPK6与蛋白磷酸酶之间的关系。

关键词：MAPK级联途径; AtMPK6; 信号转导; 发育调控; 蛋白磷酸酶

收稿：2012-02-20   修定：2012-04-24

资助：国家自然科学基金项目(30871457和31071337)

The Research Progress of Signal Transduction Functions and Participation in Developmental Regulation of AtMPK6 in Arabidopsis

ZHANG Dan, ZHOU Yan, KONG Xiang-Pei, PAN Jiao-Wen, LI De-Quan*

State Key Laboratory of Crop Biology, College of Life Sciences, Shandong Agricultural University, Tai’an, Shandong 271018, China

Corresponding author: LI De-Quan; E-mail: dqli@sdau.edu.cn; Tel: 0538-8249137

Abstract:

Mitogen-activated protein kinase (MAPK) cascade consists essentially of three components, a MAPK kinase kinase (MAPKKK), a MAPK kinase (MAPKK) and a MAPK connected to each other by the event of phosphorylation. These kinases play various roles in intra- and extra-cellular signaling in plants by transferring the information from sensors to responsors. Simultaneity, MAP kinases are organized into a complex network through the “cross-talk” for efficient transmission of specific stimuli. By far the most studied MAPKs were AtMPK3, AtMPK4 and AtMPK6, which were identified in many distinct processes. This review briefly summaries the previous research results about AtMPK6, which is involved in signaling pathways activated by kinds of stresses, and the function of development and the interactions of AtMPK6 with protein phosphatases.

Key words: MAPK cascade; AtMPK6; signal transduction; developmental regulation; protein phosphatases