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Concurrent activation of OsAMT1;2 and OsGOGAT1 in rice leads to enhanced nitrogen use efficiency under nitrogen limitation

Title
Concurrent activation of OsAMT1;2 and OsGOGAT1 in rice leads to enhanced nitrogen use efficiency under nitrogen limitation
Authors
Lee, SichulMarmagne, AnnePark, JoonheumFabien, ChardonYim, YehyunKim, Sun-jiKim, Tae-HeonLim, Pyung OkMasclaux-Daubresse, CelineNam, Hong Gil
DGIST Authors
Lee, Sichul; Marmagne, Anne; Park, Joonheum; Fabien, Chardon; Yim, Yehyun; Kim, Sun-ji; Kim, Tae-Heon; Lim, Pyung Ok; Masclaux-Daubresse, Celine; Nam, Hong Gil
Issue Date
2020-07
Citation
Plant Journal, 103(1), 7-20
Type
Article
Article Type
Article
Author Keywords
nitrogen use efficiencyOryza sativagrain quality and yieldAmmonium transporter 12Glutamate synthetase 1activation tagging mutant
Keywords
CYTOSOLIC GLUTAMINE-SYNTHETASETRANSPORTER GENEAMMONIUM UPTAKETAGGING LINESASSIMILATIONEXPRESSIONGROWTHOVEREXPRESSIONARABIDOPSISYIELD
ISSN
0960-7412
Abstract
Nitrogen (N) is a major factor for plant development and productivity. However, the application of nitrogenous fertilizers generates environmental and economic problems. To cope with the increasing global food demand, the development of rice varieties with high nitrogen use efficiency (NUE) is indispensable for reducing environmental issues and achieving sustainable agriculture. Here, we report that the concomitant activation of the rice (Oryza sativa) Ammonium transporter 1;2 (OsAMT1;2) and Glutamate synthetase 1 (OsGOGAT1) genes leads to increased tolerance to nitrogen limitation and to better ammonium uptake and N remobilization at the whole plant level. We show that the double activation of OsAMT1;2 and OsGOGAT1 increases plant performance in agriculture, providing better N grain filling without yield penalty under paddy field conditions, as well as better grain yield and N content when plants are grown under N llimitations in field conditions. Combining OsAMT1;2 and OsGOGAT1 activation provides a good breeding strategy for improving plant growth, nitrogen use efficiency and grain productivity, especially under nitrogen limitation, through the enhancement of both nitrogen uptake and assimilation. © 2020 The Authors. The Plant Journal published by Society for Experimental Biology and John Wiley & Sons Ltd
URI
http://hdl.handle.net/20.500.11750/12050
DOI
10.1111/tpj.14794
Publisher
Blackwell Publishing Inc.
Related Researcher
  • Author Lim, Pyung Ok Plant Senescence Laboratory
  • Research Interests Aging and programmen cell death in plants; RNA-based regulation of leaf aging; Synthetic genetics-based aging reprogramming
Files:
Collection:
Department of New BiologyPlant Senescence Laboratory1. Journal Articles
Department of New BiologyCBRG(Complex Biology Research Group)1. Journal Articles


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