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拟南芥中myo-肌醇-多磷酸合成与代谢及其信号

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  • 1湖南农业大学植物激素与生长发育湖南省重点实验室, 长沙 410128
    2中国科学院植物研究所资源植物研发重点实验室, 北京 100093

收稿日期: 2012-04-17

  修回日期: 2012-07-31

  网络出版日期: 2012-11-01

基金资助

国家自然科学基金项目

Myo-inositol Polyphosphate Metabolism and Signaling in Arabidopsis

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  • 1Hunan Provincial Key Laboratory of Phytohormones, Hunan Agricultural University, Changsha 410128, China

    2Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China

Received date: 2012-04-17

  Revised date: 2012-07-31

  Online published: 2012-11-01

摘要

在酵母、真菌、动物和植物等真核生物中, 以myo-肌醇为基石通过不同位点的磷酸化形成各种myo-肌醇-多磷酸及其衍生物。过去10年的研究发现这些肌醇多磷酸参与了膜脂定向转运、蛋白结构稳定、离子通道调控、RNA转运以及DNA修复和染色质重塑等细胞生物学的基本进程。近些年在模式植物拟南芥(Arabidopsis thaliana)的研究中, 许多调控植物生长发育和环境胁迫应答的重要基因被发现, 并证实这些基因参与myo-肌醇-多磷酸的合成与代谢。该文概述了拟南芥中myo-肌醇-多磷酸合成与代谢的基因调控机理, 综述了不同肌醇多磷酸作为信号分子的功能, 提出肌醇多磷酸如同一类信息代码传递着植物细胞有序进程的基本指令。

本文引用格式

吴俐, 王若仲, 徐文忠 . 拟南芥中myo-肌醇-多磷酸合成与代谢及其信号[J]. 植物学报, 2013 , 48(1) : 94 -106 . DOI: 10.3724/SP.J.1259.2013.00094

Abstract

In eukaryotes, including yeasts, fungi, animals and plants, myo-inositol is used as a building block to generate derivatives by attaching multiple combinations of mono- and pyrophosphate groups to each of the hydroxyl moieties. During the past decade, genetic and cell biological advances have indicated that these inositol polyphosphates are involved in regulating fundamental cellular processes such as directed membrane trafficking, protein structure maintenance, ion channel regulation, mRNA transportation, DNA repair, and chromatin remodeling. In recent years, many genes involved in inositol phosphate metabolism have been identified to play important roles in Arabidopsis development and stress responses. This review describes the known Arabidopsis inositol polyphosphate kinases and phosphatases, the emerging roles of these small molecules as signaling codes to regulate the fundamental cellular processes in plants, and the research trends.
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