植物学报 ›› 2016, Vol. 51 ›› Issue (1): 120-129.DOI: 10.11983/CBB14222

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拟南芥无机氮素转运蛋白及其磷酸化调控研究进展

张曦, 林金星, 单晓昳*()   

  1. 北京林业大学生物科学与技术学院, 北京 100083
  • 收稿日期:2014-12-30 接受日期:2015-05-11 出版日期:2016-01-01 发布日期:2016-02-01
  • 通讯作者: 单晓昳
  • 作者简介:? 共同第一作者
  • 基金资助:
    基金项目: 中央高校基本科研业务费专项资金(No;BLX2012038)和国家自然科学基金(No.31400221)

Progress in Inorganic Nitrogen Transport Proteins and Their Phosphorylation Regulatory Mechanism in Arabidopsis

Xi Zhang, Jinxing Lin, Xiaoyi Shan*   

  1. College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, China
  • Received:2014-12-30 Accepted:2015-05-11 Online:2016-01-01 Published:2016-02-01
  • Contact: Shan Xiaoyi
  • About author:? These authors contributed equally to this paper

摘要:

氮元素是植物必需的营养元素之一, 氮素供需失衡会严重影响植物的生长发育。无机氮(硝酸根NO3-和铵根NH4+)是植物体内氮素的主要来源, 对其有效吸收和利用依赖于多种类型转运蛋白的协同作用。其中, 部分无机氮素转运蛋白的活性受到可逆磷酸化作用的精准调控。该文将对模式植物拟南芥(Arabidopsis thaliana)中硝酸根和铵根转运蛋白的分类、结构、定位和功能特点等进行总结, 并重点对可逆磷酸化调控转运蛋白的分子机制加以阐述。

关键词: 氮素, 硝酸根, 铵根, 转运蛋白, 磷酸化

Abstract:

Nitrogen (N) is an essential nutrient element. Its supply and demand imbalance would seriously affect plant growth and development. Inorganic N (nitrate and ammonium radical) is the major N source in plant, with assimilation and transportation depending on synergistic action of various transport proteins. The activity of some inorganic N transporters is regulated at the post-translation level by phosphorylation. This review describes a global picture of the inorganic N transporters including their classification, molecular structure, location and biological function in Arabidopsis. The phosphorylation regulatory mechanisms of some inorganic N transporters are mainly discussed.

Key words: nitrogen, nitrate radical, ammonium radical, transport proteins, phosphorylation