Rice NIN-LIKE PROTEIN 4 plays a pivotal role in nitrogen use efficiency

文献类型： 外文期刊

第一作者： Wu, Jie

作者： Wu, Jie;Zhang, Zi-Sheng;Xia, Jin-Qiu;Alfatih, Alamin;Song, Ying;Huang, Yi-Jie;Wan, Guang-Yu;Sun, Liang-Qi;Tang, Hui;Liu, Yang;Yu, Lin-Hui;Xiang, Cheng-Bin;Wu, Jie;Zhang, Zi-Sheng;Xia, Jin-Qiu;Alfatih, Alamin;Song, Ying;Huang, Yi-Jie;Wan, Guang-Yu;Sun, Liang-Qi;Tang, Hui;Liu, Yang;Yu, Lin-Hui;Xiang, Cheng-Bin;Wang, Shi-Mei;Zhu, Qi-Sheng;Qin, Peng;Wang, Yu-Ping;Li, Shi-Gui;Mao, Chuan-Zao;Zhang, Gui-Quan;Chu, Chengcai;Chu, Chengcai;Yu, Lin-Hui

作者机构：

关键词： nitrogen use efficiency; NIN-like protein; OsNLP4; nitrate uptake and assimilation; nitrogen deficiency; grain yield

期刊名称：PLANT BIOTECHNOLOGY JOURNAL （ 影响因子：9.803； 五年影响因子：9.555 ）

ISSN： 1467-7644

年卷期：

页码：

收录情况： SCI

摘要： Nitrogen (N) is one of the key essential macronutrients that affects rice growth and yield. Inorganic N fertilizers are excessively used to boost yield and generate serious collateral environmental pollution. Therefore, improving crop N use efficiency (NUE) is highly desirable and has been a major endeavour in crop improvement. However, only a few regulators have been identified that can be used to improve NUE in rice to date. Here we show that the rice NIN-like protein 4 (OsNLP4) significantly improves the rice NUE and yield. Field trials consistently showed that loss-of-OsNLP4dramatically reduced yield and NUE compared with wild type under different N regimes. In contrast, theOsNLP4overexpression lines remarkably increased yield by 30% and NUE by 47% under moderate N level compared with wild type. Transcriptomic analyses revealed that OsNLP4 orchestrates the expression of a majority of known N uptake, assimilation and signalling genes by directly binding to the nitrate-responsivecis-element in their promoters to regulate their expression. Moreover, overexpression ofOsNLP4can recover the phenotype of Arabidopsisnlp7mutant and enhance its biomass. Our results demonstrate that OsNLP4 plays a pivotal role in rice NUE and sheds light on crop NUE improvement.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序