氮是植物生长必需的营养元素。但大量施用氮肥对生态环境、人类健康和保持优

Nitrogen is an essential nutrient element for plant growth. However, the large-scale application of nitrogen fertilizer will have negative effects on the ecological environment, human health and the maintenance of good germplasm resources. The strategy to solve this problem is to breed crops that use nitrogen efficiently and achieve higher crop yields while reducing nitrogen input. This review mainly summarizes the important role of amino acid nitrogen on plants from the aspects of organic nitrogen absorption, transportation and utilization, and the physiological metabolism of amino acid transporters involved in the impact of plant yields. It shows that research on amino acid transporters can also improve crop productivity and nitrogen. One of the effective goals of utilization efficiency.

Nitrogen is an essential nutrient for plant growth. However, the large amount of nitrogen fertilizer application will have a negative impact on the ecological environment, human health and the conservation of good quality resources, the strategy to solve this problem is to breed nitrogen efficient use of crops, in the case of reducing nitrogen input to achieve higher crop yields. This review summarizes the important role of amino acid nitrogen on plants and the physiological metabolism involved in amino acid transport protein on plant yield, and shows that the study of amino acid transport protein is also one of the effective targets to improve crop productivity and nitrogen utilization efficiency.

氮是植物生长必需的营养元素。但大量施用氮肥对生态环境、人类健康和保持优良种质资源都会产生负面影响，解决这一问题的策略是育种氮素高效利用的作物，在减少氮输入的情况下实现较高的作物产量。该综述主要从有机氮的吸收转运和利用方面简述了氨基酸态氮对植株的重要作用以及氨基酸转运蛋白参与的生理代谢对植株产量的影响，表明从氨基酸转运蛋白方面研究也是提高作物生产力和氮利用效率的有效目标之一。<br>