不受ABA诱导的SnRK2蛋白激酶家族研究进展  

Research Progress of ABA-Independent Sucrose Non-Fermenting Protein Kinase 2

作　　者：吴珊 张欣欣 Wu Shan ,Zhang Xinxin(Alkali Soil Natural Environmental Science Center, Northeast Forestry University, Harbin, 15004)

机构地区：[1]东北林业大学盐碱地生物资源环境研究中心

出　　处：《基因组学与应用生物学》2018年第3期1364-1369,共6页Genomics and Applied Biology

基　　金：中央高校基本科研业务费专项资金项目(2572014DA06)资助

摘　　要：蔗糖非酵解型蛋白激酶2（SnRK2），广泛存在于多种植物，不同SnRK2的磷酸化机制可能涉及通过高渗性和ABA的激活，在植物抵抗逆境过程中起到重要生理功能。本综述主要结合SnRK2蛋白激酶家族的最新研究进展，综述其分子结构、活性调控、作用机制及其生理学功能等，着重介绍不受ABA诱导的SnRK2激酶在植物生长与应答逆境胁迫中的相关研究，ABA独立的SnRK2s作为植物对非生物胁迫响应的正调节器，参与体细胞胚胎发生的诱导，在拟南芥中表达增强了植物对干旱，寒冷和盐度耐受性。到目前为止，关于ABA独立的SnRK2家族成员的信息很少，还需对ABA独立的SnRK2家族进行深入研究，为系统探究植物逆境应答机制提供资料依据。Sucrose non-fermenting protein kinase 2 （SnRK2）, widely existed in a variety of plants. The phosphorylation mechanism of different SnRK2 may be involved in the activation of hyperosmotic and ABA, which played an important physiological role in the process of plant resistance to stress. This review focused on the latest research progress of SnRK2 protein kinase family, and summarized its molecular structure, activity regulation, mechanism, physiological function, etc. It emphasized that SnRK2 kinase which was not induced by ABR was involved in plant growth and response stress. Furthermore, ABA independent SnRK2 as a positive regulator of plant responses to abiotic stress, was related to somatic embryogenesis induction of which expression in A rabidopsis thaliana enhanced plant tolerance to drought, cold and salinity. Up to now, there was little information on the ABA independent SnRK2 family members, and the ABA independent SnRK2 family needs to be studied in depth to provide a basis for the systematic investigation of plant stress response mechanisms.

关 键 词：SnRK2 蛋白激酶 逆境胁迫 ABA 

分 类 号：Q946.5[生物学—植物学]