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12.546 & 16.614 - NRT2.3b: Enhanced Yield and Nitrogen Use

Patent Reference:
Grants: US 9,012,721, MX 356051, ID P-00201504655, PH 1-2015-501712
Publications: WO/2014/122452, EP2954059, CN 104995304A, TH 174914

Xiaorong Fan & Huimin Feng, Nanjing Agricultural University (Nanjing, China)
Tony Miller, John Innes Centre (Norfolk, UK)

Key to plant pH homeostasis plus 3-6x enhanced iron uptake

Proven to increase yield in extensive rice field trials.  Far reaching effects on plant performance via unexpected key role in pH homeostasis, plus 3-6x enhanced iron uptake.  Shown to work in tobacco and Arabidopsis.  Suitable to deploy to crop species. 

NEW 2019: The inventors have generated non-transgenic mutants of rice with high expression of the OsNRT2.3b gene – directly available for conventional breeding (Tech Id 16.614).


Xiaorong Fan et al (2016).  Overexpression of a pH-sensitive nitrate transporter in rice increases crop yields.  PNAS: doi: 10.1073/pnas.1525184113.

Bingbing Luo et al (2020).  Overexpression of the High-Affinity Nitrate Transporter OsNRT2.3b Driven by Different Promoters in Barley Improves Yield and Nutrient Uptake Balance.  Int J Mol Sci; 21(4): 1320; https://doi.org/10.3390/ijms21041320.


Contact: Dr Jan Chojecki

Download non-confidential summary (PDF): Click here

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