Study Explains Why Plants Grow Less in Hot EnvironmentsApril 10, 2019
Plants have developed a complex system that when exposed to extreme environments such as hot temperatures, their energy is diverted towards survival instead of being used for growth. Scientists from Nara Institute of Science and Technology (NAIST) in Japan reported that two transcription factors, ANAC044 and ANACO85, are vital in such mechanism in Arabidopsis, and this provides clues on how to modulate growth of important agricultural crops. The results of their study is published in eLife.
In previous studies, NAIST Professor Masaaki Umeda and team reported that SOG1 is activated by DNA damage and regulates almost all genes induced by the damage, while Rep-MYBs are stabilized in DNA damage conditions to suppress cell division. In the latest study, Umeda's research team shows that ANAC044 and ANAC085 act as a bridge between SOG1 and Rep-MYB. They found that ANAC044 and ANAC085 are essential for root growth retardation and stem cell death, but not for DNA repair. Specifically, ANAC044 and ANAC085 were responsible for preventing the cell cycle from proceeding from G2 phase to mitosis in response to the DNA damage. This implies that ANAC044 and ANAC085 serve as gatekeepers in the progression from the G2 phase in the cell cycle under abiotic stress conditions.
The study shows a new mechanism that optimizes organ growth under stressful conditions. Thus, the researchers recommend other scientists to consider ANAC044 and ANAC085 in increasing plant productivity.
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
- Durum Wheat Genome Decoded
- Scientists Use Plant Hormones to Fight a Parasitic Crop Pest in Africa
- The Search for New Sources of Salt Tolerance in Carrots
- Scientists Pinpoint Gene Vital for Making Maize Ears
- Maize Yields Influenced by Unexpected Gene 'Moonlighting'
- Scientists Develop Model that Predicts Photosynthetic Manipulations to Increase Yields
- Agri-biotech Stakeholders Convene for Pan-Asia Farmer's Exchange Program
- Two Studies Reveal Steps in Plant Immune Receptor Activation
- EFSA Releases Scientific Opinion on Six-Event GM Maize
- Study Explains Why Plants Grow Less in Hot Environments
- Vietnamese Scientists Develop Drought Tolerant Rice Lines
Beyond Crop Biotech
- Scientists Genetically Engineer Yeast to Improve Understanding of How Cells Work
- Register to Plant Genomics and Gene Editing Congress: Asia (10% Discount for CBU Subscribers)
- Blight Disease Resistance of TBR225 Rice Variety
- Study Shows Single and Multiple Gene Knockouts by CRISPR-Cas9 in Maize
Read the latest:
- Biotech Updates (November 29, 2023)
- Gene Editing Supplement (November 29, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: