Plant ion channels: gene families, physiology, and functional genomics analyses.
Plant ion channels: gene families, physiology, and functional genomics analyses.
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DOI：
10.1146/annurev.physiol.010908.163204
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发表时间：
2009
影响因子：
18.2
通讯作者：
Schroeder JI
中科院分区：
文献类型：
--
作者：
Ward JM;Mäser P;Schroeder JI
在植物细胞质膜和液泡膜上存在不同的钾离子、阴离子和钙离子通道，这些通道已被膜片钳技术鉴定和表征。由于拟南芥遗传学和基因组学的进展，以及酵母功能互补，许多相应的基因已被确定。在我们的理解离子通道基因介导的信号转导和离子转运的最新进展进行了讨论。一些植物离子通道，如ALMT和SLAC阴离子通道亚基是独特的。大多数植物离子通道家族表现出与动物基因的同源性;这些家族包括超极化和去极化激活的Shaker型钾通道、CLC氯化物转运蛋白/通道、环核苷酸门控通道和离子型谷氨酸受体同源物。这些植物离子通道为分析离子通道的结构机制和功能提供了独特的机会。在这里，我们回顾了选定的植物离子通道类的基因家族，并讨论了独特的结构-功能方面及其在植物细胞信号传导和运输的生理作用。
Distinct potassium, anion, and calcium channels in the plasma membrane and vacuolar membrane of plant cells have been identified and characterized by patch clamping. Primarily owing to advances in Arabidopsis genetics and genomics, and yeast functional complementation, many of the corresponding genes have been identified. Recent advances in our understanding of ion channel genes that mediate signal transduction and ion transport are discussed here. Some plant ion channels, for example, ALMT and SLAC anion channel subunits, are unique. The majority of plant ion channel families exhibit homology to animal genes; such families include both hyperpolarization-and depolarization-activated Shaker-type potassium channels, CLC chloride transporters/channels, cyclic nucleotide–gated channels, and ionotropic glutamate receptor homologs. These plant ion channels offer unique opportunities to analyze the structural mechanisms and functions of ion channels. Here we review gene families of selected plant ion channel classes and discuss unique structure-function aspects and their physiological roles in plant cell signaling and transport.