OST1调控植物气孔运动和逆境响应的研究进展  

Advances in the Regulation of OST1 on Stomatal Movement and Stress Responses of Plant

作　　者：李欣[1] 王俊斌[1,2] 丁博[1] 吴天文[1] 余鹏[1] 陈小强[1] 谢晓东[1] 

机构地区：[1]天津农学院,天津-布里斯托环境变化对农作物影响研究中心,天津300384 [2]天津农学院基础科学学院,天津300384

出　　处：《基因组学与应用生物学》2017年第2期834-840,共7页Genomics and Applied Biology

基　　金：国家自然科学基金项目(31671611);天津市科委应用基础与前沿技术研究计划项目(14JCYBJC30600);天津市131创新型人才团队和天津市学科领军人才计划共同资助

摘　　要：SnRK2(SNF1-related protein kinase 2)家族在调控植物应答和抵御逆境方面发挥着重要作用。Open Stomata 1(OST1)/SnRK2.6是该家族的成员,具有典型的丝氨酸/苏氨酸蛋白激酶保守域,并主要在保卫细胞中表达。在逆境胁迫下,蛋白磷酸酶2C解除对OST1蛋白激酶的抑制,随后OST1蛋白激酶启动对下游信号组分的调控作用并引起气孔运动。本研究综述了OST1蛋白激酶的结构特征,主要概述OST1蛋白激酶与蛋白磷酸酶、转录因子和离子通道的调控关系,最后对相关的研究进行了展望。SnRK2 （SNFl-related protein kinase 2） family plays an important role in regulating the response and resistance to stresses of plants. Open Stomata 1 （OST1）/SnRK2.6, a major SnRK2-type protein kinase, has the typical conserved domain of Ser/Thr protein kinase, and it mainly expresses in guard cells. Under stress conditions, protein phosphatase type 2C relieves the inhibition of protein kinase OST1, which activates the regulation of the downstream components and induces stomatal movement. In this review, we summarized the structure characters of OST1 and the regulatory relationship among protein kinase OST1, protein phosphatases, transcription factors and ion channels. Finally, we made some prospect for related issues in the future.

关 键 词：OST1蛋白激酶 脱落酸(ABA) 离子通道 蛋白磷酸酶 转录因子 气孔运动 

分 类 号：Q945[生物学—植物学]