Scientists Report New Signaling Pathway for Chilling Tolerance in Rice
December 20, 2017Prof. Chong Kang and team from the Chinese Academy of Sciences (CAS) reported a new mechanism for chilling tolerance in rice. The findings are reported in Developmental Cell.
In 2009, the research team had shown that overexpression of the wild rice gene OrbHLH2 improved tolerance to osmotic stress in Arabidopsis. In their recent study, they discovered that the cold-activated protein kinase OsMAPK3 phosphorylates the transcription factor OsbHLH002/OsICE1 directly to enhance its transactivation activity. Furthermore, OsMAPK3 weakened the interaction between OsbHLH002 and E3 ubiquitin ligase OsHOS1, which led to decreased ubiquitination and degradation of OsbHLH002.
The boost in protein content and transactivation activity of OsbHLH002 turned on the expression of OsTPP1 (encoding trehalose-6-phosphatase) to bring about the hydrolysis of trehalose-6-phosphate, increasing the trehalose content and improving the chilling tolerance of rice.
For more information, read the news release from CAS and the research article in Developmental Cell.
The Crop Biotech Update is a weekly newsletter of ISAAA, a not-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
- JGI and UNC Develop Functional Genomics Database for Plant Microbiome Studies
- USDA FAS-GAIN Reports Agri-biotech Updates in Mozambique
- Researchers Trace Potato's Origins, Its Untapped Potential
- Large Scale Trials Reveal Secrets to Adaptation of Modern Corn Hybrids
- Society of Toxicology: No Verifiable Evidence of Potential for Adverse Health Effects of GE Crops
- Temple University Study Did Not Conclude Link Between Canola Oil Consumption and Alzheimer's
- CSIRO Scientists Develop New Type of Wheat with Ten Times More Fiber
- Study Reveals New Insight into "Immortal" Plant Cells
-
Research Highlights
- Scientists Report New Signaling Pathway for Chilling Tolerance in Rice
- Aquaporin Gene Increases Fruit Size and Enhances Drought Tolerance in Tomato
- Overexpression of AtEDT1 Gene Confers Drought Tolerance in Alfalfa
-
Plant Breeding Innovations
- Knock-out of OsAnn3 Decreases Cold Tolerance in Rice
- Scientists Use CRISPR to Modify Promoters and Boost Crop Yields
-
Beyond Crop Biotech
- Engineers Create Plants that Glow
-
Resources
- Biotech Country Facts and Trends (Industrial Countries)
-
Read the latest: - Crop Biotech Update (December 1, 2022)
- Genome Editing Supplement (November 23, 2022)
- Gene Drive Supplement (December 1, 2022)
-
Subscribe to CBU: - Share
- Tweet