免疫系统
钙
质外体
免疫受体
细胞生物学
生物
受体
电压依赖性钙通道
钙信号传导
生物物理学
第二信使系统
化学
生物化学
作者
Nak Hyun Kim,Pierre Jacob,Jeffery L. Dangl
摘要
Calcium serves as a second messenger in a variety of developmental and physiological processes and has long been identified as important for plant immune responses. We discuss recent discoveries regarding plant immune-related calcium-permeable channels and how the two intertwined branches of the plant immune system are intricately linked to one another through calcium signalling. Cell surface immune receptors carefully tap the immense calcium gradient that exists between apoplast and cytoplasm in a short burst via tightly regulated plasma membrane (PM)-resident cation channels. Intracellular immune receptors form atypical calcium-permeable cation channels at the PM and mediate a prolonged calcium influx, overcoming the deleterious influence of pathogen effectors and enhancing plant immune responses.
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