Geiger Dietmar, Hedrich Rainer
Molecular Plant Physiology and Biophysics, Julius-von-Sachs Institute, Biocenter, Julius-Maximilians-Universität Würzburg, Würzburg 97082, Germany.
Faculty of Synthetic Biology, Shenzhen University of Advanced Technology, Shenzhen, China; Institute of Emerging Agricultural Technology, Shenzhen University of Advanced Technology, Shenzhen, China; Key Laboratory of Quantitative Synthetic Biology, Shenzhen Institute of Synthetic Biology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
Dev Cell. 2025 May 19;60(10):1393-1395. doi: 10.1016/j.devcel.2025.04.019.
The phytohormone abscisic acid (ABA) triggers the activation of Snf1-related protein kinase 2s (SnRK2s) for adaptation to abiotic stress conditions. However, osmotic stress-induced ABA accumulation is slow while Ca signals occur immediately. In this issue of Developmental Cell, Li et al. show that a subset of calcium-dependent kinases decode Ca signals to directly control SnRK2 activation and thus early osmotic stress regulation in plants.
植物激素脱落酸（ABA）触发Snf1相关蛋白激酶2（SnRK2s）的激活，以适应非生物胁迫条件。然而，渗透胁迫诱导的ABA积累缓慢，而钙信号则立即出现。在本期《发育细胞》中，李等人表明，一部分钙依赖性激酶解码钙信号，以直接控制SnRK2的激活，从而调控植物早期渗透胁迫反应。
