《植物生理学报》 2018, 54(1): 19-24

植物非ABA依赖型SnRK2研究进展

庞彩红¹, 李双云¹, 夏阳¹, 杨勇², 杨庆山¹, 臧真荣¹, 刘慇¹, 亓玉昆¹, 刘盛芳^1,*

¹山东省林业科学研究院, 山东省林木遗传改良重点实验室, 济南250014; ²平凉职业技术学院, 甘肃平凉744000

通信作者：刘盛芳；E-mail: sdlxh7783@163.com；Tel: SnRK2; 非生物胁迫; 非ABA依赖型; 信号转导

摘　要：

SnRK2是植物特有的一类Ser/Thr类蛋白激酶, 在植物逆境生理过程中扮演了重要的角色。根据生物学特性可将SnRK2分为SnRK2a和SnRK2b两组, 从系谱发生分析, SnRK2家族成员又可分为三个亚族, 分别为Group I、Group II和Group III, 其中Group I属于SnRK2b组, 不能被ABA激活, 为非ABA依赖型。本文主要总结了非ABA依赖型SnRK2的研究进展, 为深入开展非ABA依赖型SnRK2逆境胁迫机制研究提供参考。

收稿：2017-10-09   修定：2017-12-11

资助：国家自然科学基金(31600488)、山东省自然科学基金(ZR-2016CM42)和山东省农业良种工程项目(鲁科字[2014]96号)。

Research progress of plant ABA-independent SnRK2

PANG Cai-Hong¹, LI Shuang-Yun¹, XIA Yang¹, YANG Yong², YANG Qing-Shan¹, ZANG Zhen-Rong¹, LIU Yin¹, QI Yu-Kun¹, LIU Sheng-Fang^1,*

¹Shandong Province Key Laboratory of Forest Tree Genetic Improvement, Shandong Academy of Forestry, Jinan 250014, China; ²Pingliang Vacational & Technical College, Pingliang, Gansu 744000, China

Corresponding author: LIU Sheng-Fang; E-mail: sdlxh7783@163.com; Tel: SnRK2; 非生物胁迫; 非ABA依赖型; 信号转导

Abstract:

The SnRK2 family members are plant-specific serine/threonine kinases involved in plant response to abiotic stresses. The SnRK2 kinases are divided into two classes, SnRK2a and SnRK2b, based on the amino acid composition of their divergent C-terminal domains rich in acidic amino acids, either poly-Asp (SnRK2a) or poly-Glu (SnRK2b). Based on a phylogenetic analysis, the SnRK2 family members have been divided into three groups, Group I, Group II, and Group III. Groups I of the phylogenic classification correspond to the Sn-RK2b subfamily which can not be activated by ABA (ABA independent SnRK2). In this summary, the research progress of the ABA independent SnRK2 will be described to reveal its function during the abiotic stresses in plants.

Key words: SnRK2; abiotic stresses; ABA-independent; signal transduction