• ISSN 1008-505X
  • CN 11-3996/S
张鹏, 张然然, 都韶婷. 植物体对硝态氮的吸收转运机制研究进展[J]. 植物营养与肥料学报, 2015, 21(3): 752-762. DOI: 10.11674/zwyf.2015.0323
引用本文: 张鹏, 张然然, 都韶婷. 植物体对硝态氮的吸收转运机制研究进展[J]. 植物营养与肥料学报, 2015, 21(3): 752-762. DOI: 10.11674/zwyf.2015.0323
ZHANG Peng, ZHANG Ran-ran, DU Shao-ting. Research advances in nitrate uptake and transport in plants[J]. Journal of Plant Nutrition and Fertilizers, 2015, 21(3): 752-762. DOI: 10.11674/zwyf.2015.0323
Citation: ZHANG Peng, ZHANG Ran-ran, DU Shao-ting. Research advances in nitrate uptake and transport in plants[J]. Journal of Plant Nutrition and Fertilizers, 2015, 21(3): 752-762. DOI: 10.11674/zwyf.2015.0323

植物体对硝态氮的吸收转运机制研究进展

Research advances in nitrate uptake and transport in plants

  • 摘要: 硝态氮是高等植物重要的氮素营养,直接影响植物的生长。植物根系吸收硝态氮并向地上部转运的机制一直是研究者十分关注的问题。近几年的深入研究使得新的现象与结论被揭示,推动了我们对植物体吸收转运硝态氮生理与分子机制的认识。本文综述了近年来国内外关于植物硝态氮吸收转运的生理及分子机制的相关研究结果。通过整理归类植物硝酸盐吸收相关的生理学数据,介绍了影响植物吸收硝态氮的各种因素。基于膜转运体在植物硝态氮吸收转运过程中发挥的重要作用,本文还重点介绍参与该过程的四大基因家族的成员及功能,即硝酸盐转运体1(NRT1)、硝酸盐转运体2(NRT2)、氯离子通道(CLC)和s型阴离子通道(SLAC),以期为后续研究者提供一个较为全面的理论依据。

     

    Abstract: 【Objective】 Nitrate is one of the major nitrogen sources for higher plants, which most frequently limits the growth of plants. Recently, the mechanisms of nitrate uptake and transport to the aboveground parts in plants have received widespread attention. New phenomenons and conclusions have been revealed and thereby give us a new sight into the physiological and molecular mechanisms of nitrate uptake and transport in plants. In this review, the current worldwide research conducted on nitrate uptake and transport in plants was summarized in the physiological and molecular levels. Besides, the influence factors responsible for nitrate uptake in plants were also discussed by integrating the large amount of physiological data. Membrane bound transporters are required for nitrate uptake, allocation and storage inside the plants. Therefore, we also summarized the members and the functions of four gene families that encode the nitrate transporters, including nitrate transporter 1(NRT1), nitrate transporter 2(NRT2), chloride channel(CLC) and slow anion channel-associated(SLAC). We hope that the recent advances in molecular biology of nitrate uptake and transport can provide a more comprehensive theoretical basis for further research.

     

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