植物免疫应答过程中Ca^(2+)及CaM/CML的功能  

The function of Ca^(2+) and CaM/CML in plant immunity

作　　者：张超[1,2,3] 赵芊[2,3] 张哲[1,2,3] 宋水山[2,3] 

机构地区：[1]河北工业大学化工学院,天津300130 [2]河北省科学院生物研究所,石家庄050081 [3]河北省主要农作物病害微生物控制工程技术研究中心,石家庄050081

出　　处：《生物学杂志》2014年第2期69-72,共4页Journal of Biology

基　　金：国家自然科学基金资助项目(31270880)

摘　　要：钙离子是一个多功能的第二信使,在植物响应各种生理刺激时,Ca2+参与调节植物的多种生长发育和胁迫适应过程。在这些过程中,Ca2+信号带有特异性标签,通过Ca2+结合蛋白及其下游靶蛋白感知不同刺激并翻译成响应的细胞反应。钙调素(CaM)和钙调素类蛋白(CML)是Ca2+主要的感受器,通过调节不同靶蛋白的活性调控多种细胞功能。最近在植物对抗病原菌的防卫反应中有关Ca2+/CaM信号转导系统的研究取得了一定进展。重点关注植物免疫应答过程中受CaM/CML调控的信号组分的研究,包括参与Ca2+信号产生和Ca2+依赖的表达基因组分调控。Calcium is a universal messenger involving in the modulation of diverse developmental and adaptive processes in response to various physiological stimuli. Ca2＋ signals are represented by stimulus-specific Ca2~ signatures sensed and translated into proper cellu- lar responses by diverse Ca2＋ binding proteins and their downstream targets. Calmodulin （CAM） and calmodulin-like （CML） proteins are primary Ca2＋ sensors to control diverse cellular functions by regulating the activity of various target proteins. The advances in our understanding of Ca2＋/CaM-mediated signaling in plants have emerged from investigations into plant defense responses against various pathogens. Recent studies focused on significant progress made in the identification of CaM/CML-regulated components involved in the generation of Ca2＋ aignals and Ca2＋ -dependent regulation of gene expression during plant immune responses.

关 键 词：CA2+ CAM CML 植物免疫 信号转导 钙调素结合蛋白 

分 类 号：Q94[生物学—植物学]