High Temperatures Can Trigger a Reaction in a Plant's RNANovember 7, 2018
PennState University researchers used rice seedlings to show that the stress of hotter temperatures may trigger a response in a plant's ribonucleic acid (RNA), which is a part of a cells' genetic messaging system, to manage this change in its environment.
The researchers studied over 14,000 different RNAs to look for changes in the RNA. Thus, they searched for changes in RNA's intricately folded structures that could signal acute heat stress. Since RNA is single-stranded, unlike the double-stranded DNA, it is able to fold back on itself and form more complex folds than DNA. They exposed two-week old rice seedlings to above normal temperatures for just ten minutes and compared with the control plants.
Results showed that the folds in the RNA of plants suffering from heat stress were looser than those in the control plants. The unfolding of the mRNA, a particular type of RNA, which transfers DNA instructions to the ribosome in a cell during the protein-making process, was also found to be correlated with a loss in the abundance of mRNA, suggesting that mRNA unfolding promotes its degradation, a method that cells use to regulate which genes express and when.
According to one of the researchers, Philip Bevilacqua, the results give hints on next steps for future research into more heat and drought resistant crops.
"So, if loss of structure results in loss of abundance and if that loss of abundance is not optimal, then you could imagine that we could change the sequences of the ends of the RNA, making them more stable, and, therefore, stabilize the production of those proteins," he said.
Read more from Penn State.
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
- 13 WTO Members Support Policy Approaches to Enable Innovation in Agriculture
- Farmers and University Students Call for Urgent Action on Biotech Legislation in Uganda
- US Patent Awarded to DNA-Targeting Complex
- High Temperatures Can Trigger a Reaction in a Plant's RNA
- ASTA Lauds International Statement Supporting of Plant Breeding Innovation
- Scientists Discover Gene Regulator that Allows Plant to Rehydrate After Drought
- FAS Jakarta Launches "Biotech Ambassadors" Outreach
- USDA: The Philippines Remains as Asia's Leader in Biotech
- Gene Discovery Could Pave Way for Disease Resistant Crops
- Small Genetic Differences Make Plants into Better Teams
- Agriculture Minister of The Netherlands Opens Door to Genetic Modification
- Protoplast Isolation Method for Genetic Improvement of Pineapple
- Gene from Castor Bean Increases Unusual Oil in Camelina
Plant Breeding Innovations
- Researchers Use CRISPR for Apple and Grapevine Improvement
- Plasmid-Free Genome Editing of Cabbage and Chinese Cabbage
- Plant Genome Editing Database (PGED) Goes Live
Beyond Crop Biotech
- Scientists Reveal a Gene Related to Alzheimer's Disease Using CRISPR
- Pocket K: Contributions of Agri-biotech in Alleviation of Poverty and Hunger (Updated)
Subscribe to CBU: