OsIPMS1 Gene Involved in Seed Vigor and Energy Metabolism in RiceJuly 18, 2018
Seed vigor is an imperative trait for the direct seeding of rice. Isopropylmalate synthase (IPMS) is known to catalyze an important step in leucine (Leu) synthesis, but its effect on seed vigor remains unclear. Nanjing Agricultural University researchers led by Yongqi He investigated the role of rice OsIPMS1 and OsIPMS2 genes in seed vigor.
Both OsIPMS1 and OsIPMS2 catalyze Leu synthesis, and Leu feedback inhibits their activities. Disruption of OsIPMS1 via CRISPR-Cas9 resulted in low seed vigor under various conditions, which might be associated with the reduction of amino acids in germinating seeds. Eleven amino acids involved in stress tolerance, gibberellic acid synthesis and tricarboxylic acid cycle were significantly reduced in osipms1 mutants compared to wildtypes during seed germination.
A total of 1,209 differentially expressed genes (DEGs) were found in the osipms1a mutant, most of which were involved in glycolysis, protein processing, pyruvate, carbon, fructose and mannose metabolism. Further analysis confirmed that the role of OsIPMS1 in seed vigor is involved in starch hydrolysis, glycolytic activity and energy levels in germinating seeds.
This study provides insights into the function of OsIPMS1 on seed vigor and should have practical applications in the improvement of rice.
For more information, read the article in Plant Biotechnology Journal.
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
- Experts Tackle Importance of GM Crops Commercialization in Beijing
- African Scientists Challenged to Invest in Developing Communication Skills
- International Research Team Discovers Genetic Mechanism that Allows Rice to Survive Flooding
- Farm Babe Debunks Myths about GMOs
- Japanese Researchers Assemble First Accurate Buckwheat Genome
- Cornell Alliance for Science Calls for Comments for Golden Rice in PH
- Vietnamese Farmers Share Experiences in GM Maize Planting
- Socio-economic Aspect of GM Crops Highlighted in Symposium
- Australian OGTR Issues License for GM Wheat Field Trials
- EFSA Publishes Scientific Opinion on Four-Event Stack Maize Bt11 × MIR162 × 1507 × GA21
- Sugarcane Genome Has Finally Been Sequenced
- ZmNBS25 from Maize Functions as a Disease Resistance Gene Across Species
- Upregulation of Lipid Biosynthesis Increases the Oil Content in Sorghum
From the BICs
- "Pink Bollworm Management Strategy" Book Now Available in Telugu
- CRISPR Can Speed up Nature and Change How We Grow Food
- Researchers Find Soybean Genes for Alkaline Stress Resistance
- FaTM6 Controls Flower Development in Strawberry
- OsIPMS1 Gene Involved in Seed Vigor and Energy Metabolism in Rice
- Chinese Scientists Develop Improved CRISPR System
Read the latest:
- Biotech Updates (December 7, 2023)
- Gene Editing Supplement (November 29, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: