Arabidopsis P3B Confers Temperature Stress Tolerance in Sweet PotatoAugust 16, 2017
Sweet potato (Ipomoea batatas) is suitable for growth on marginal lands due to its abiotic stress tolerance. However, extreme environmental conditions, including low temperature, significantly affect its productivity. A team of researchers from Korea Research Institute of Bioscience and Biotechnology, Korea University of Science and Technology, Jiangsu Academy of Agricultural Science and other research institutions and universities in South Korea aimed to develop sweet potatoes with enhanced tolerance to temperature stress using P3 proteins.
P3 proteins act as both protein and RNA chaperones to increase heat and cold stress tolerance in Arabidopsis. The team generated transgenic sweet potato plants expressing the Arabidopsis ribosomal P3 (AtP3B). Three lines (OP1, OP30, and OP32) were then selected based on their AtP3B transcript levels.
The OP plants displayed greater heat tolerance and higher photosynthesis efficiency than wild type plants. The OP plants also exhibited enhanced low temperature tolerance, with higher photosynthesis efficiency and less membrane permeability. While the yields of tuberous roots and aerial parts of plants did not significantly differ between OP and WT plants, the tuberous roots of OP transgenic sweet potato showed improved storage ability under low temperatures.
The OP plants developed in this study exhibited increased tolerance to temperature stress and enhanced storage ability under low temperature.
For more information, read the article in BMC Plant Biology.
The Crop Biotech Update is a weekly newsletter of ISAAA, a non-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
- Agri-biotech Global Market May Reach US$39.5B in 2022
- New Method to Measure NPQ for Better Photosynthesis
- Brazil's CTNBio Approves New GM Soybean
- Unlocking Planthoppers' Role in Rice Stripe Virus Reproduction
- Indian Agricultural Economists Support GM Mustard Commercialization
- India's Environment Ministry Stresses Safety of GM Mustard
- Biologists Discover New Mechanisms of Protein Transport in Plant Cells
- Genetically Modified Multi-Nutrient Rice Offers Three Micronutrients Against Malnutrition
- Arabidopsis P3B Confers Temperature Stress Tolerance in Sweet Potato
- Coffee BDP Gene Affects Abiotic Stress Response of Transgenic Arabidopsis
Plant Breeding Innovations
- CRISPR-Mediated Modification of TaEDR1 Homologs Enhances Powdery Mildew Resistance in Wheat
Beyond Crop Biotech
- US FDA's Plan to Reduce Nicotine in Cigarettes Prompts Other Countries to Follow Suit
- Plant Genome Evolution 2017
- 3rd International Conference on Genetic and Protein Engineering
- ISAAA Infographic: 17 Years of Media Reportage on Modern Biotech in the Philippines
Subscribe to CBU: