
Transgenic Sugarcane Can Grow in Potassium Scarce Conditions
June 4, 2014 |
Low potassium availability has always been a major constraint to sugarcane production. Previously, two genes, CBL9 and CIPK23, were found to be responsible for the activation of the AKT1 gene, which controls a potassium channel, responsible for potassium uptake in roots.
Based on these previous studies, three components of the signaling pathway, AtCBL9, AtCIPK23, and AtAKT1 from Arabidopsis thaliana were co-overexpressed in sugarcane (Saccharum spp.). This resulted in a 31% increase in potassium content of transgenic plants at low-potassium stress. The evaluation was also done in hydroponic culture in which a 35% increase in potassium content was observed in transgenics compared to non-transgenic lines.
Under low potassium conditions, transgenic lines had longer roots, higher plant height, heavier dry weight than non-transgenic lines, indicating better growth of transgenic lines. This study showed that co-overexpression of AtCBL9, AtCIPK23 and AtAKT1 could significantly increase sugarcane potassium uptake ability and tolerance to low-potassium stress. These findings would have significant implications for improving stress tolerance of sugarcane in areas where potassium supply is scarce.
For more information on this study, feel free to visit http://www.pomics.com/qi_7_3_2014_188_194.pdf.
|
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
- 3,000 Rice Genome Sequences Made Publicly Available on World Hunger Day
- Egypt Minister of Agriculture and Land Reclamation: Agri-biotech to Benefit Country
- Rwanda Adopts Green Growth Strategy
- Farmer Leader Calls for Bt Cotton Trials in Zimbabwe
- Survey Shows Growing Opposition to GM Food Labeling
- Researchers Discover Rice Blast Match
- Policy Roundtable Discussion and Media Workshop Tackle Biotech in Southeast Asia
- Team from Australia Develops Drought Tolerant Mungbean
- Pakistan to Intensify Cotton Seed Yield
- Asian Biotech Body Gets New Committee
- Genetic Mechanism Protects Plants from Zinc
-
Research Highlights
- Recombinant Barley-produced Antibody for Bovine Milk Allergen Detection
- Tritrophic Study Shows Effects of Bt Cotton on Herbivore and Its Predator
- Late Blight Resistant Potato Developed Using Cisgenesis Approach
- Transgenic Sugarcane Can Grow in Potassium Scarce Conditions
-
Beyond Crop Biotech
- Island Plants Evolve to Have Larger Seeds
- Crude-oil Degrading Bacteria Isolated in Persian Gulf
-
Announcements
- IPBO Announces Postgraduate Course Biosafety in Plant Biotechnology
- Molecular Biology for Non-Biologists Course
-
Resources
- ISAAA Releases Infographic on Biotech Crops Benefits
-
Read the latest: - Biotech Updates (April 30, 2025)
- Gene Editing Supplement (April 30, 2025)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet