Chinese Bulletin of Botany ›› 2016, Vol. 51 ›› Issue (1): 120-129.DOI: 10.11983/CBB14222

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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


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