Gene from Arabidopsis Improves Drought Tolerance of Indica RiceJanuary 15, 2014
Transcription factor DREB1A from Arabidopsis thaliana has been found to improve drought tolerance. Thus, a research team led by G. Ravikumar of the Directorate of Rice Research in Hyderabad, India, developed transgenic rice plants with AtDREB1A in the background of indica rice cultivar Samba Mahsuri through Agrobacterium-mediated transformation. Analyses showed that the AtDREB1A gene was stably expressed and passed onto the initial offspring as well as in following generations. The expression of AtDREB1A was induced by drought stress in transgenic rice lines, which were highly tolerant to severe water deficit stress in both the vegetative and reproductive stages without affecting their morphological or agronomic traits.
The physiological studies showed that the expression of AtDREB1A was linked with the building up of amino acid proline, maintenance of chlorophyll, increased relative water content, and decreased ion leakage under drought condition. Furthermore, the homozygous lines had higher grain yield and spikelet fertility compared with the non-biotech counterparts under both stressed and unstressed conditions.
Read the abstract at http://link.springer.com/article/10.1007/s11248-013-9776-6.
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
- Major Economic Models Point Direction on World's Agriculture, Climate Change
- Biotic Stress: From Gene to Field
- Adesina Calls on Speeding Up Biosafety Bill Approval
- TWAS-ARO Organize S&T Education for Sustainable Development in Arab Region Conference
- US Consumers' Perception of Biotech Crops
- General Mills' Cheerios Reinforce Safety of Biotech Crops
- Fraley: Biotech Wheat Moves Closer to Market
- Researchers Discover Another Pathway for Amino Acid Production in Plants
- Indian National Science Academy Fellowship Conferred on ICRISAT Scientist
- Scientists Discover Plant Mechanism to Stimulate their Growth Even Under Stress
- EFSA: GM Soybean 305423 is as Safe as its Conventional Counterpart
- Wheat Genome Dataset to Help Researchers Improve the Grain
- Overexpression of Glucanase in Maize for Direct Use in Animal Feed
- Gene from Arabidopsis Improves Drought Tolerance of Indica Rice
- Effect of Biotech Maize 5307 on Non-target Organisms
Beyond Crop Biotech
- Coppicing Response Gene in Biomass Willow Identified
- Scientists Use Metabolic Engineering to Modify Omega-3 Fatty Acids in Microalgae
- 2nd Plant Genomics Congress
- 5th World Congress on Biotechnology
Read the latest:
- Biotech Updates (December 7, 2023)
- Gene Editing Supplement (November 29, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: