| 咖啡硝态氮代谢研究进展 |
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| 引用本文： | 林兴军,陈 鹏,孙 燕,黄丽芳,董云萍.咖啡硝态氮代谢研究进展[J].热带作物学报,2015,35(3):100-105. |
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| 作者姓名： | 林兴军 陈 鹏 孙 燕 黄丽芳 董云萍 |
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| 作者单位： | 1 中国热带农业科学院香料饮料研究所 海南万宁 571533；2 农业部香辛饮料作物遗传资源利用重点实验室 海南万宁 571533;1 中国热带农业科学院香料饮料研究所 海南万宁 571533;1 中国热带农业科学院香料饮料研究所 海南万宁 571533；2 农业部香辛饮料作物遗传资源利用重点实验室 海南万宁 571533;1 中国热带农业科学院香料饮料研究所 海南万宁 571533；2 农业部香辛饮料作物遗传资源利用重点实验室 海南万宁 571533;1 中国热带农业科学院香料饮料研究所 海南万宁 571533；2 农业部香辛饮料作物遗传资源利用重点实验室 海南万宁 571533 |
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| 摘 要： | 咖啡是一种对氮需求量高的作物，氮的吸收、同化对咖啡生长、发育和产量有重要的影响。进入植物体内的硝态氮只有在转化为铵态氮后才能被植物直接利用，这一代谢过程受外界光照、树龄、土壤pH值等因素的影响。综述近些年来有关环境因素对咖啡硝态氮代谢方面影响的研究进展，并讨论叶片和根系硝态氮代谢的差异以及根系硝态氮吸收的生理意义，为进一步开展咖啡施肥技术研究提供依据。
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| 关 键 词： | 咖啡 硝酸还原酶活性 氮肥 硝态氮代谢 |
Reviews of Nitrate Metabolism in Coffee Plants |
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| Institution: | 1 Spice and Beverage Research Institute, CATAS, Wanning, Hainan 571533; 2 Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture, Wanning, Hainan 571533;1 Spice and Beverage Research Institute, CATAS, Wanning, Hainan 571533;;1 Spice and Beverage Research Institute, CATAS, Wanning, Hainan 571533; 2 Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture, Wanning, Hainan 571533;1 Spice and Beverage Research Institute, CATAS, Wanning, Hainan 571533; 2 Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture, Wanning, Hainan 571533;1 Spice and Beverage Research Institute, CATAS, Wanning, Hainan 571533; 2 Key Laboratory of Genetic Resources Utilization of Spice and Beverage Crops, Ministry of Agriculture, Wanning, Hainan 571533 |
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| Abstract: | Coffee plants are highly N-demanding plants. Nitrogen assimilation is a vital process for plant growth, directly responsible for crop biomass production and grain yields. Within the plant, nitrate must be first reduced to ammonium before being assimilated into amino acids, the metabolism influenced by factors such as light, plant age, soil pH value.In this review, in order to provide the basis for the further study on the coffee fertilization technology, we summarize the influence of different factor on nitrate metabolism, and discuss the difference of nitrate metabolism between leaves and roots and the physiological significance of root nitrate assimilation. |
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| Keywords: | Coffee NRA nitrogen fertilization nitrogen metabolism |
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