Ca2+及鈣結(jié)合蛋白與植物耐鹽性關(guān)系的研究進展

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Research Progress on Relationship between Ca2+ and Calcium-Binding Proteins and Salt Tolerance in Plants

Li Cheng’，Du Chunyan2，Cui Xianfen3，Li Yancan'，Li Jingjuan1，Song Jie4，Cui Bing'，Gao Jianwei（1. Vegetable Research Institute， Shandong Academy of Agricultural Sciences， Jinan 250100， China;2. Agriculture and Rural Bureau of Daiyue District， Taian City， Taian 271OOO，China;3. Tianzhuang Reservoir Comprehensive Service Center， Yiyuan County， Yiyuan 2561Oo， China ;4. College of Life Sciences， Shandong Normal University， Jinan 25oooo， China）

AbstractSoil salinization severely impacts crop productivity. As a pivotal secondary messenger in plant cells， Ca2+ plays a central role in mediating responses to salt stress. Calcium-binding proteins in plants perceive extracellular signals by binding Ca2+ . These proteins belong to an extensive gene superfamily including four subfamilies which were calcium-dependent protein kinases （CDPKs）and their related kinases（CRKs）， calmodulins （CaMs），calmodulin-like proteins（CMLs），and calcineurin B-like proteins（CBLs）paired with their interacting protein kinases （（CIPKs）. Calcium-binding proteins play important roles in plants response to salt stress adaptation. This review synthesized current advances in understanding Ca2+ signaling and calciumbinding proteins in plant salt tolerance，and mainly discussed the regulatory effects of Ca2+ on salt-stressed crops and the function of calcium-binding proteins to crop salt resistance.Finally，the research and application prospects of calcium-binding proteins were prospected.

Keywords Ca2+ ; Calcium-binding protein; Salt stress; Salt tolerant mechanism

鹽脅迫對植物生長有重大危害，顯著影響作物產(chǎn)量。（剩余21021字）