Article
Sensory circuitry controls cytosolic calcium-mediated phytochrome B phototransduction.
Cell - 16 Mar 2023
Zhao Yan, Shi Hui, Pan Ying, Lyu Mohan, Yang Zhixuan, Kou Xiaoxia, Deng Xing Wang, Zhong Shangwei
Abstract excerpt
Although Ca2+ has long been recognized as an obligatory intermediate in visual transduction, its role in plant phototransduction remains elusive. Here, we report a Ca2+ signaling that controls photoreceptor phyB nuclear translocation in etiolated seedlings during dark-to-light transition. Red light stimulates acute cytosolic Ca2+ increases via phyB, which are sensed by Ca2+-binding protein kinases, CPK6 and CPK12...
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