钙调素结合蛋白参与调控植物逆境胁迫的研究进展

Recent Advances in Calmodulin Binding Protein Involved in Plant Responses to Adversity Stresses

摘要:

Ca²⁺是植物体内重要的第二信使，当植物受到各种环境刺激时，细胞内的Ca²⁺浓度瞬间产生变化，并被Ca²⁺信号效应器识别，通过与下游的靶蛋白结合并调节其活性，参与调控植物各种生理活动。钙调素结合蛋白以依赖Ca²⁺或不依赖Ca²⁺的方式结合钙调素。对目前已经鉴定的植物钙调素结合蛋白结构特点进行了综述，并着重介绍了钙调素结合蛋白是如何参与调节植物对生物胁迫和非生物胁迫的反应，为提高作物抗病抗逆能力研究提供理论基础。

Abstract:

Calcium (Ca²⁺) is an important second messenger in plants. The intracellular concentration of Ca²⁺ is often elevated instantaneously under various kinds of biotic and abiotic stresses, and which is recognized by Ca²⁺ signal effectors. By binding to downstream target proteins and regulating their activities, Ca²⁺ participates in the regulation of various physiological activities of plants. Calmodulin binding proteins bind calmodulin in a Ca²⁺-dependent or Ca²⁺-independent manner. The structure characteristics of calmodulin binding proteins identified in plants were reviewed, and emphasizing on how calmodulin binding proteins are involved in regulating plant responses to biotic and abiotic stresses was focused, which would provide a theoretical basis for study of improve disease-tolerance and stress-tolerance of crops.