Scientists Investigate the Nitrogen and Genotype Effects on Protein and Amino Acid Distribution in RiceJune 25, 2010
Rice is an important staple food that provides energy, protein and nutrients to consumers across the globe. Nine percent of its dry weight is attributed to protein, which is quite low compared to other cereals' protein content. The grain proteins found in rice is also lacking in lysine, an essential amino acid. Milling process also contributes to the loss of proteins. On the other hand, nitrogen has been studied to promote grain protein accumulation, but no study has been conducted to investigate the effect of varying nitrogen.
Huifeng Ning of Nanjing Agricultural University in China together with other scientists conducted field testing of six japonica rice cultivars with different agronomic characteristics. The cultivars were subjected under seven nitrogen fertilizer treatments to "examine the nitrogen effect on protein distribution in milled rice and brown rice; and identify genotypic differences in response to protein distribution as a result of nitrogen treatments."
Results showed that for brown and milled rice, proteins albumin and globulin were mainly controlled by genotype and not by nitrogen; while proteins prolamin and glutelin were highly affected by nitrogen. There were also significant differences in the reaction of milled/brown (M/B) ratios of proteins to nitrogen treatments. Compared with cultivars with large panicles, the small-panicle cultivars exhibited lower ratio and more consistency under varying nitrogen treatments. In both milled and brown rice, amino acid composition increased with increasing N rate, except for methionine, cystein and lysine. And also, nitrogen showed no significant effects on the M/B ratios of the majority of the amino acids.
Visit http://dx.doi.org/10.1016/j.jcs.2010.03.009 for the abstract.
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
- Halving Hunger through "Business as Unusual"
- UK Support for Global Food Security
- Report Says Enhance Food Security in Africa through S & T
- S&W Company Releases First Ever Group 8 Dormancy Salt Tolerant Alfalfa
- US Supreme Court Favors Release of Roundup Ready Alfalfa
- Pioneer Experts Warns Soybean Growers Against White Mold
- INIA Disproves Claim of Illegally Planted Transgenic Maize in Peru
- KSU and Monsanto Collaborate to Develop Better Wheat Varieties
- Monsanto Beachell-Borlaug Program 2010 Winners
- GM Canola in High Demand in Western Australia
- Malaysian GMAC Formed
- Australian Approval for Field Testing of GM Wheat for Drought and Heat Resistance
- Golden Spirulina Being Studied in Thailand
- Cotton Seed Distributors to Release Three New Cotton Varieties
- EFSA Meets with Member States re ERA
- Plants Sex Influence Offspring Seed Size and Survival
- A New Test for the Anthurium Blight in Europe
- Development of Monsanto's Glyphosate-resistant Cotton
- Scientists Investigate the Nitrogen and Genotype Effects on Protein and Amino Acid Distribution in Rice
- Adaptation Could Improve Maize Yield and Evapotranspiration Amidst Climate Change
- European Forum for Industrial Biotechnology 2010 in Edinburgh
- Q-bank Databases Officially Launched
- Biosafety Capacities - FAO
- Climate Change and Agriculture: Impacts Adaption and Mitigation
- Video: Technical Meeting on the Updated Guidance Document on ERA of GM Plants
Read the latest:
- Biotech Updates (September 20, 2023)
- Gene Editing Supplement (September 13, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: