New insight into Ca < sup > 2+ < /sup > -permeable channel in plant immunity

J Integr Plant Biol. 2024 Jan 30. doi: 10.1111/jipb.13613. Online ahead of print.ABSTRACTCalcium ions (Ca2+ ) are crucial intracellular second messengers in eukaryotic cells. Upon pathogen perception, plants generate a transient and rapid increase in cytoplasmic Ca2+ levels, which is subsequently decoded by Ca2+ sensors and effectors to activate downstream immune responses. The elevation of cytosolic Ca2+ is commonly attributed to Ca2+ influx mediated by plasma membrane-localized Ca2+ -permeable channels. However, the contribution of Ca2+ release triggered by intracellular Ca2+ -permeable channels in shaping Ca2+ signaling associated with plant immunity remains poorly understood. This review discusses recent advances in understanding the mechanism underlying the shaping of Ca2+ signatures upon the activation of immune receptors, with particular emphasis on the identification of intracellular immune receptors as non-canonical Ca2+ -permeable channels. We also discuss the involvement of Ca2+ release from the endoplasmic reticulum in generating Ca2+ signaling during plant immunity.PMID:38289015 | DOI:10.1111/jipb.13613

Source: Journal of Integrative Plant Biology - January 30, 2024 Category: Biology Authors: Wei Wang Hang-Yuan Cheng Jian-Min Zhou Source Type: research