Activating plant immunity: the hidden dance of intracellular Ca2+ stores

文献类型： 外文期刊

第一作者： Wang, Qi

作者： Wang, Qi;Yan, Haiqiao;Zhang, Zilu;Li, Wei;He, Jinyu;Lou, Laiqing;Chang, Ming;Cang, Xiaoyan;Zhang, Meixiang;Wang, Ran

作者机构：

关键词： Ca2+ signal; Ca2+ store; chloroplast; cytoskeleton; ER; mitochondrion; organelle; plant immunity

期刊名称：NEW PHYTOLOGIST （ 影响因子：9.4； 五年影响因子：10.5 ）

ISSN： 0028-646X

年卷期： 2024 年 242 卷 6 期

页码：

收录情况： SCI

摘要： Calcium ion (Ca2+) serves as a versatile and conserved second messenger in orchestrating immune responses. In plants, plasma membrane-localized Ca2+-permeable channels can be activated to induce Ca2+ influx from extracellular space to cytosol upon pathogen infection. Notably, different immune elicitors can induce dynamic Ca2+ signatures in the cytosol. During pattern-triggered immunity, there is a rapid and transient increase in cytosolic Ca2+, whereas in effector-triggered immunity, the elevation of cytosolic Ca(2+ )is strong and sustained. Numerous Ca2+ sensors are localized in the cytosol or different intracellular organelles, which are responsible for detecting and converting Ca2+ signals. In fact, Ca2+ signaling coordinated by cytosol and subcellular compartments plays a crucial role in activating plant immune responses. However, the complete Ca2+ signaling network in plant cells is still largely ambiguous. This review offers a comprehensive insight into the collaborative role of intracellularCa(2+) stores in shaping the Ca2+ signaling network during plant immunity, and several intriguing questions for future research are highlighted.

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