Research Reveals New Approach to Improve Nitrogen Use, Enhance Yield, and Promote Flowering in RiceFebruary 28, 2018
Nitrogen fertilizer helps increase crop yields, but excessive use causes environmental pollution. Large amounts of nitrogen can also delay flowering in rice. A recent study identified a rice nitrate transporter (NRT) that can help increase grain yield and accelerate flowering if overexpressed.
In the rice plant, different NRTs move nitrogen from the soil into the roots and move nitrogen compounds throughout the plant. Some NRTs sense nitrogen levels and trigger responses. A study showed that rice OsNRT1.1A can affect both nitrogen use and flowering time and mutant lines lacking this transporter showed decreased use of nitrate and ammonium.
To improve yield and flowering time, the researchers created rice lines that produced extra OsNRT1.1A. The OsNRT1.1A-overexpressing plants grew taller, were greener, and produced more biomass, compared with regular rice grown on the same amount of nitrogen. These plants also pulled more nitrate and ammonium out of the medium in hydroponics experiments. In multi-year field trials, the OsNRT1.1A-overexpressing plants showed improved yields of more than 30% (and up to 60%) in fields with high and low levels of nitrogen fertilization. These plants also flowered one to two weeks earlier than the control rice plants.
For more details, read the press release from the American Society of Plant Biologists.
Biotech Updates is a weekly newsletter of ISAAA, a not-for-profit organization. It is distributed for free to over 22,000 subscribers worldwide to inform them about the key developments in biosciences, especially in 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
- WEMA Gives Hope for Farmers Battling Armyworm in Kenya
- Ghana CSIR Affirms Safety of GM Crops
- Research Reveals New Approach to Improve Nitrogen Use, Enhance Yield, and Promote Flowering in Rice
- Researchers Monitor Photosynthesis in Soybean Using Invisible Light
- Scientists Discover Secret of How to Triple Number of Sorghum Grains
- India Launches Massive Pink Bollworm Awareness Campaign
- Increasing Sugar Yield and Biomass Production in Arabidopsis Discovered by VIB Scientists
- Land Plants Evolved 100 Million Years Earlier than Thought
- Study Shows How Plants Use 'Baits' to Trap Pathogens
- RNAi-mediated Knockdown of GmFAD2-1B Improves Oil Quality in Soybean
- Rice Gene Confers Citrus Canker Resistance to Transgenic Mandarin
Beyond Crop Biotech
- Researchers Unlock Genetic Code of the Brightest and Most Vibrant Colors in Nature
- BIO Asia International Conference
- Plants, Genes, and Agriculture Book
- CRISPR-Cas9 Used in Reverse Genetics Studies of Parasponia
- lncRNA1459 Knock-out Alters Tomato Fruit Ripening
- Researchers Apply CRISPR-Cas9 on Cacao Leaves
- Transgenerational CRISPR-Cas9 Induces Multiplex Gene Editing in Wheat
Read the latest:
- Biotech Updates (September 27, 2023)
- Gene Editing Supplement (September 27, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: