OsPEX5 Regulates Rice Spikelet Development, Study ShowsJuly 17, 2019
Scientists from Nanjing Agricultural University in China reports that mutations in OSPEX5, which encodes a peroxisomal targeting sequence 1 (PTS1) receptor protein, cause formation of irregular spikelets. Their study is published in New Phytologist Trust.
Spikelet is the primary reproductive structure and a vital basis of grain yield in rice, however, the molecular mechanisms involved in rice spikelet development are still unclear. In the research conducted by Xiaoman You and colleagues, it was discovered that OSPEX5 can cooperate with OSOPR7, an enzyme vital in the production of jasmonic acid and for its transport into peroxisome, an organelle in the cytoplasm that plays an important role in the oxidation of biomolecules. The study showed that similar to plants with mutated Ospex5, the plants with inoperative OsOPR7 developed using CRISPR-Cas9 had lower concentrations of exogenous jasmonic acids and exhibited irregular spikelets. Application of exogenous jasmonic acid helped to partially correct the irregular formation of spikelets.
The findings indicate that OSPEX5 regulates spikelet development by causing the peroxisomal import of OsOPR7.
Read the summary of findings in New Phytologist Trust.
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
- Hybrid Corn: High Yields and Nitrogen Efficient
- Experts Assess the Impact of Risk Assessment on Public Acceptance of Gene-edited Crops
- Four Companies Receive Permit to Import GM Products in Zambia
- Government Spokespersons Impressed by Progress in Agri-biotech Research in Uganda
- GM Tobacco Plants to Produce Industrial Proteins
- Scientists Decode DNA Secrets of World's Toughest Bean
- Gene Identified that Will Help Develop Plants to Fight Climate Change
- USDA Probes Detection of GE Wheat in US Agri Fields
- GM Crops Aid Transition of Pakistan from Subsistence to Commercial Farming
- Zero-Waste Plants Being Developed
- Maize Promoter Induces Cellulase Enzyme Expression in Maize Kernels
Beyond Crop Biotech
- Dairy-free Ice Cream Made from GE Yeast Sold Out
From the BICs
- Farmers from Madhya Pradesh Benefit from Project SAFFAL
- OsPEX5 Regulates Rice Spikelet Development, Study Shows
- Consumers in Costa Rica Show Favorable Attitudes on CRISPR Foods, Survey
Read the latest:
- Biotech Updates (November 29, 2023)
- Gene Editing Supplement (November 29, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: