植物学报 ›› 2007, Vol. 24 ›› Issue (06): 714-725.

• 综述 • 上一篇    下一篇

植物吸收转运无机氮的生理及分子机制

李新鹏 童依平   

  1. 中国科学院遗传与发育生物学研究所, 植物细胞与染色体工程国家重点实验室, 北京 100101
  • 收稿日期:2007-06-26 修回日期:2007-10-10 出版日期:2007-11-01 发布日期:2007-11-01
  • 通讯作者: 童依平

Physiological and Molecular Basis of Inorganic Nitrogen Transport in Plants

Xinpeng Li Yiping Tong   

  1. The State Key Laboratory of Plant Cell and Chromosomal Engineering, Institute of Genetics and Developmental Biology, Chinese
  • Received:2007-06-26 Revised:2007-10-10 Online:2007-11-01 Published:2007-11-01
  • Contact: Yiping Tong

摘要: 氮是植物生长必需的营养元素。植物从土壤中吸收的氮素主要是NO3-和NH4 +等无机氮源。植物吸收NO3-和NH4+的系统均有高亲和转运系统(high-affinity transport system, HATS)和低亲和转运系统(low-affinity transport system, LATS)之分。近10多年的研究已对这些转运系统的分子基础有了较好的理解, 本文着重对近年来植物吸收无机氮分子机制的研究进展进行了综述。

Abstract: Nitrogen (N) is an essential macro-nutrient for plants. Nitrate and ammonium are the main N sources absorbed by plants. Both nitrate and ammonium transport systems can be kinetically divided into two systems: the low-affinity transport system and the high-affinity nitrate transport system. This review introduces recent advances in the physiological and molecular mechanisms of inorganic N transport in plants.