Expressional analysis and role of calcium regulated kinases in abiotic stress signaling.
Expressional analysis and role of calcium regulated kinases in abiotic stress signaling.
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DOI：
10.2174/138920210790217981
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发表时间：
2010-03
期刊：
影响因子：
2.6
通讯作者：
Pandey GK
中科院分区：
文献类型：
--
作者：
Das R;Pandey GK
感知刺激和激活信号级联是所有生物体的固有特征。到目前为止，已经阐明了几种信号通路，它们涉及生物体生长和发育的多个方面。暴露于不利的刺激或压力条件激活不同的信号级联在植物和动物。由于无柄，植物无法摆脱不利的条件，因此激活分子机制来科普或适应特定的压力条件。在植物中，钙作为第二信使在非生物和生物胁迫信号中的作用已被详细研究。钙调素（CaM）、钙依赖蛋白激酶（CDPK）和类钙调蛋白B（CBL）等钙传感蛋白在植物非生物胁迫信号转导中起着重要作用。与CDPK不同，CBL和CaM是钙结合蛋白，它们不具有任何蛋白激酶活性，并且分别与称为CBL相互作用蛋白激酶（CIPK）和CaM激酶的靶蛋白激酶相互作用。拟南芥和水稻的基因组序列分析导致这些钙信号蛋白激酶的多基因家族的鉴定。在几种发育和不同的非生物胁迫条件下，对这些蛋白激酶家族成员的个体和全局基因表达进行了分析。本文综述了钙信号蛋白激酶在不同非生物胁迫和发育阶段的表达分析，并将其表达与可能的功能联系起来。
Perception of stimuli and activation of a signaling cascade is an intrinsic characteristic feature of all living organisms. Till date, several signaling pathways have been elucidated that are involved in multiple facets of growth and development of an organism. Exposure to unfavorable stimuli or stress condition activates different signaling cascades in both plants and animal. Being sessile, plants cannot move away from an unfavorable condition, and hence activate the molecular machinery to cope up or adjust against that particular stress condition. In plants, role of calcium as second messenger has been studied in detail in both abiotic and biotic stress signaling. Several calcium sensor proteins such as calmodulin (CaM), calcium dependent protein kinases (CDPK) and calcinuerin B-like (CBL) were discovered to play a crucial role in abiotic stress signaling in plants. Unlike CDPK, CBL and CaM are calcium-binding proteins, which do not have any protein kinase enzyme activity and interact with a target protein kinase termed as CBL-interacting protein kinase (CIPK) and CaM kinases respectively. Genome sequence analysis of Arabidopsis and rice has led to the identification of multigene familes of these calcium signaling protein kinases. Individual and global gene expression analysis of these protein kinase family members has been analyzed under several developmental and different abiotic stress conditions. In this review, we are trying to overview and emphasize the expressional analysis of calcium signaling protein kinases under different abiotic stress and developmental stages, and linking the expression to possible function for these kinases.
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