《植物生理学报》 2021, 57(3): 521-530

植物CBL-CIPK信号系统的功能及其响应非生物胁迫作用机制研究进展

马瑞^1,2,3，李世贵^1,2，刘维刚^1,2，王志科⁴，杨江伟⁴，唐勋^2,4，张宁⁴，司怀军^2,4,*

¹甘肃农业大学农学院, 兰州730070；²甘肃省干旱生境作物学省部共建国家重点实验室培育基地, 兰州730070；³定西市农业科学研究院, 甘肃定西743000；⁴甘肃农业大学生命科学技术学院, 兰州730070

通信作者：司怀军；E-mail: hjsi@gsau.edu.cn

摘　要：

植物能够快速适应非生物胁迫归功于体内复杂的响应和调控机制。钙离子(Ca²⁺)作为第二信使, 负责传递外界刺激信号。钙调磷酸酶B类似蛋白(CBL)是钙离子感受器的一种, 其特异性互作蛋白被称为CIPK。 CBL-CIPK复合体通过蛋白磷酸化过程参与植物中大多数钙离子信号通路, 在植物响应非生物胁迫的过程中发挥着重要的调控作用。本文综述了CBL-CIPK信号系统的结构性质和作用机理及其在植物应对各种非生物胁迫下的研究进展, 并对CBL-CIPK信号系统的研究前景做了展望。

关键词：非生物胁迫; 钙离子; CBL-CIPK; 信号系统

收稿：2020-06-15   修定：2020-10-16

资助：国家自然科学基金(31860399和31660416)和甘肃省现代农业马铃薯产业技术体系项目(GARS-03-P1)

Functions and progress in mechanism research of CBL-CIPK signaling system in plants

MA Rui^1,2,3, LI Shigui^1,2, LIU Weigang^1,2, WANG Zhike⁴, YANG Jiangwei⁴, TANG Xun^2,4, ZHANG Ning⁴, SI Huaijun^2,4,*

¹College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China; ²Gansu Provincial Key Laboratory of Aridland Crop Science, Lanzhou 730070, China 3; ³Dingxi Acdaemy of Agricultural Sciences, Dingxi, Gansu 743000, China; ⁴College of Life Science and Technology, Gansu Agricultural University, Lanzhou 730070, China

Corresponding author: SI Huaijun; E-mail: hjsi@gsau.edu.cn

Abstract:

The complex systems and regulatory mechanisms of plants can help themselves to adapt to abiotic stress. Ca²⁺, as a second messenger, transmits signals from the external environment to cell’s interior. Calcineurin B-like proteins (CBL) is one of major Ca2+ sensors and its specifc binding protein is named CBL-interacting protein kinases (CIPK). CBL-CIPK modules participate in most of calcium signaling pathways by phosphorylation and also play a critical role in plant responses to abiotic stresses. Here, we review the structural and physicochemical properties of CBL-CIPK, summarize the latest research results of CBL-CIPK and look into its prospect.

Key words: abiotic stress; Ca2+; CBL-CIPK; signaling system