利用异源酵母功能互补法研究水稻铵转运体<br /><i>OsAMT1；1</i>功能及调控机制-《江苏农业科学》

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Title:: Study on function and regulatory mechanism of rice ammonium transporter OsAMT1； 1 by heterologous yeast function complementary method

作者:: 杨顺瑛¹; 2; 丛郁¹; 郝东利¹; 2; 苏彦华¹; 1.中国科学院南京土壤研究所/土壤与农业可持续发展国家重点实验室，江苏南京 210008； 2.中国科学院大学，北京 100049

Author(s):: Yang Shunying; et al

关键词:: 水稻; 铵转运体1; 1; 酵母功能互补; 调控

Keywords:: -

分类号:: S511.01

DOI:: -

文献标志码:: A

摘要:: 水稻是一种以铵态氮为主要氮素营养的重要粮食作物，存在至少12个铵转运体，对水稻铵的吸收起着至关重要的作用，其中，水稻铵转运体1；1(Oryza sativa ammonium transporter1；1，OsAMT1；1)是一个在根部和地上部相对组成型表达的基因。通过异源酵母功能互补法研究水稻铵转运体OsAMT1；1的功能及其调控机制，结果表明，OsAMT1；1是一个功能型的铵转运体，和铵的同系物甲基铵(Methylammonium，MeA⁺)相比，OsAMT1；1对铵具有相对较高的选择性；OsAMT1；1介导铵的吸收不依赖于外界质子，转运的底物可能是铵离子；OsAMT1；1介导吸收铵的过程是一个依赖能量的主动运输过程，对铵的吸收可能不受钙离子参与的磷酸化过程调控。

Abstract:: -

参考文献/References:

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