Overexpression of OsNRT2.3b Improves Phosphorus Uptake and Translocation in RiceAugust 9, 2017
Nitrogen (N) and phosphorus (P) are two essential macronutrients for plants. A team of researchers from Nanjing Agricultural University, headed by Huimin Feng, hypothesized that overexpression of the rice nitrate transporter, OsNRT2.3b, can improve rice grain yield and nitrogen use efficiency (NUE).
Overexpression of OsNRT2.3b significantly increased P uptake compared with wild types. The overexpression also resulted in increased rice grain and straw yields. Increased P concentrations in rice leaves and unfilled rice hulls were also observed in these lines. Furthermore, the overexpressing lines also showed enhanced root biomass and root surface area as well as N and P accumulation. Analysis revealed that expression levels of genes related to phosphorus uptake and translocation, OsPT2, OsPT8, and OsPHR2, were upregulated in the shoots and roots of the overexpressing rice.
These results indicate that OsNRT2.3b overexpression can improve rice P uptake and accumulation by advancing the root system and enhancing gene expression of P uptake genes.
For more information on this promising study, read the article in Plant Cell Reports.
The Crop Biotech Update is a weekly newsletter of ISAAA, a not-for-profit organization. The CBU is distributed for free to over 23,000 subscribers worldwide to inform them about the key developments in biosciences, especially in agricultural biotechnology. Your support will help us in our mission to feed the world with knowledge. You can help by donating as little as $10.
See more articles:
News from Around the World
- Kenya Approves Field Trials of Biotech Corn and Cotton
- Innate® 2nd Gen Potato Receives Government Clearance in Canada
- Genomic Study Shows Maize Adapted to Highlands 4,000 Years Ago
- PH Bureau of Plant Industry Invites Public Comments on Golden Rice
- Turkey Approves Four More Biotech Traits
- EFSA Releases Risk Assessment of New Sequencing Information on GM Soybean Events
- GM Plants Promise Fish Oils Aplenty
- Transcription Factor JUNGBRUNNEN1 Enhances Drought Tolerance in Tomato
- Overexpression of OsNRT2.3b Improves Phosphorus Uptake and Translocation in Rice
Plant Breeding Innovations
- Evaluation of HvPAPhy_a Gene in Barley Using CRISPR-Cas9 and TALENs
- CRISPR-Cas9-mediated Engineering of the γ-Aminobutyric Acid Pathway in Tomato
Beyond Crop Biotech
- Canadian Consumers First to Taste Commercialized GE Salmon
From the BICs
- SINO-Pak Hybrid Rice Research Center Inaugurated at ICCBS
- Science In Real Life: GMOs with the Van Eck Lab
- ISAAA Releases New Pocket K on CRISPR-Cas9
Read the latest:
- Crop Biotech Update (September 21, 2022)
- Genome Editing Supplement (September 21, 2022)
- Gene Drive Supplement (August 31, 2022)
Subscribe to CBU: