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Agronomic improvements through the genetic and physiological regulation of nitrogen uptake in wheat (Triticum aestivum L.)

文献类型： 外文期刊

作者： Kong, Lingan 1 ; Wang, Fahong 1 ; Lopez-bellido, Luis 2 ; Maria Garcia-mina, Jose 3 ; Si, Jisheng 1 ;

作者机构： 1.Shandong Acad Agr Sci, Crop Res Inst, Jinan 250100, Peoples R China

2.Univ Cordoba, Dept Ciencias & Recursos Agr & Forestales, E-14071 Cordoba, Spain

3.Poligono Arazuri Orcoyen, CIPAV Roullier Grp, Orcoyen 31160, Navarre, Spain

关键词： Crop management;Genetic control;Nitrogen use efficiency;Root system;Triticum aestivum L.

期刊名称：PLANT BIOTECHNOLOGY REPORTS （ 影响因子：2.01； 五年影响因子：1.907 ）

ISSN： 1863-5466

年卷期： 2013 年 7 卷 2 期

页码：

收录情况： SCI

摘要： Nitrogen (N) uptake is the first step in nitrate assimilation, and efficient N uptake is essential for plant growth, especially for protein biosynthesis and photosynthetic activities. In cereals, improved N uptake is closely coupled with an increase in nitrogen use efficiency (NUE) and yield improvements. Because wheat (Triticum aestivum L.) is a leading crop worldwide, a better understanding of N uptake regulation in wheat is vital to improving NUE and developing sustainable agricultural systems. However, detailed information regarding the biological mechanisms that are responsible for the more efficient uptake of ambient N by wheat is limited. This review presents recent developments in the biological mechanisms of N uptake in wheat, including plant growth regulations, fundamental roles of root systems, interactions between N species, and genetic controls. Specifically, this paper provides a number of potential strategies that can be used to increase wheat N uptake. The information provided here may guide N fertilizer management during wheat production and further elucidate the plant regulatory mechanisms that are involved in N uptake, which can thereby increase wheat NUE.

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