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- Title
Activating plant immunity: the hidden dance of intracellular Ca<sup>2+</sup> stores.
- Authors
Wang, Qi; Cang, Xiaoyan; Yan, Haiqiao; Zhang, Zilu; Li, Wei; He, Jinyu; Zhang, Meixiang; Lou, Laiqing; Wang, Ran; Chang, Ming
- Abstract
Summary: 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 Ca2+ 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 intracellular Ca2+ stores in shaping the Ca2+ signaling network during plant immunity, and several intriguing questions for future research are highlighted.
- Subjects
DISEASE resistance of plants; CALCIUM ions; EXTRACELLULAR space; CYTOSOL; IMMUNE response; CALCIUM channels
- Publication
New Phytologist, 2024, Vol 242, Issue 6, p2430
- ISSN
0028-646X
- Publication type
Article
- DOI
10.1111/nph.19717