Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad 38000, Pakistan.
Center for Advanced Studies in Agriculture and Food Security, University of Agriculture, Faisalabad 38040, Pakistan.
Int J Mol Sci. 2019 Oct 24;20(21):5298. doi: 10.3390/ijms20215298.
Abiotic stresses are the major limiting factors influencing the growth and productivity of plants species. To combat these stresses, plants can modify numerous physiological, biochemical, and molecular processes through cellular and subcellular signaling pathways. Calcium-dependent protein kinases (CDPKs or CPKs) are the unique and key calcium-binding proteins, which act as a sensor for the increase and decrease in the calcium (Ca) concentrations. These Ca flux signals are decrypted and interpreted into the phosphorylation events, which are crucial for signal transduction processes. Several functional and expression studies of different CPKs and their encoding genes validated their versatile role for abiotic stress tolerance in plants. CPKs are indispensable for modulating abiotic stress tolerance through activation and regulation of several genes, transcription factors, enzymes, and ion channels. CPKs have been involved in supporting plant adaptation under drought, salinity, and heat and cold stress environments. Diverse functions of plant CPKs have been reported against various abiotic stresses in numerous research studies. In this review, we have described the evaluated functions of plant CPKs against various abiotic stresses and their role in stress response signaling pathways.
非生物胁迫是影响植物物种生长和生产力的主要限制因素。为了应对这些胁迫，植物可以通过细胞和亚细胞信号通路来改变许多生理、生化和分子过程。钙依赖性蛋白激酶（CDPKs 或 CPKs）是独特的关键钙结合蛋白，作为钙（Ca）浓度增加和减少的传感器。这些 Ca 流信号被解密并解释为磷酸化事件，这对信号转导过程至关重要。对不同 CPKs 及其编码基因的许多功能和表达研究证实了它们在植物非生物胁迫耐受性中的多功能作用。CPKs 通过激活和调节几种基因、转录因子、酶和离子通道，对于调节非生物胁迫耐受性是不可或缺的。CPKs 参与支持植物在干旱、盐度、热和冷胁迫环境下的适应。在许多研究中，已经报道了植物 CPKs 针对各种非生物胁迫的多种功能。在这篇综述中，我们描述了植物 CPKs 针对各种非生物胁迫的评估功能及其在胁迫响应信号通路中的作用。
