Research Finds Autophagy's Remarkable Influence on Plant MetabolismDecember 5, 2018
Researchers from Washington University in St. Louis led by Richard Vierstra describe the effects of autophagy on the metabolism of maize plants using a uniquely comprehensive set of modern "-omics" technologies. Autophagy is a process that helps break down damaged or unwanted pieces of a cell so that the building blocks can be used again. In plants, autophagy is often associated with aging, or a response to nutrient starvation.
Maize, or corn, is an important crop that is sensitive to nitrogen deprivation. According to Vierstra, the George and Charmaine Mallinckrodt Professor of Biology in Arts & Sciences, one of the largest costs to growing maize in terms of energy, expenditures and farmers' time is providing adequate nitrogen to fertilize the soil.
The group learned that maize plants lacking a key gene for autophagy are profoundly different at a molecular level — even if they're getting enough nutrients and appear to develop normally. Using state-of-the-art tools, the group compared and analyzed the transcriptome, proteome, metabolome, and ionome of maize seedlings grown with or without the autophagy-related gene ATG12, and fertilized with or without nitrogen. This allowed the team to identify cellular processes affected by autophagy. Once considered undiscriminating, autophagy is now considered to be highly selective, as only certain parts of the cell are specifically recognized and reused.
For more details about this research, read the news article in The Source.
ISAAA shares, disseminates, and promotes science-based information to help in achieving global agricultural sustainability and development. During this time of COVID-19 pandemic, we monitor research on treatments, vaccines and keep track of the pandemic's effect on food security and agriculture. We help the public make informed decisions and actions to mitigate and recover from the impact of COVID-19. At this crucial time, we need your help. Please support our efforts today from as little as $10
See more articles:
News from Around the World
- FAO DG Calls for Countries to Address All Forms of Malnutrition
- Governments Set Targets for Biodiversity Conservation by 2050
- Uganda Parliament Passes GMO Bill
- Research Finds Autophagy's Remarkable Influence on Plant Metabolism
- Guatemala and Honduras Send Draft Biotechnology Regulation to WTO
- Colombia Open to Biotech Adoption; Continues to Work through Regulatory Challenges
- International Team Discovers Why Plants "Live Fast and Die Young"
- Inactivating Genes Boosts Crop Genetic Diversity
- PAC1 Overexpression Improves Multiple Virus Resistance of Soybean
- Scientists Reveal How Plants Sense Temperature
Plant Breeding Innovations
- Researchers Use CRISPR-Cas9 for Gene Editing of Cavendish Banana
- Gene-edited Rice Shows BIG Gene Vital for Seedling Viability
Beyond Crop Biotech
- Study Identifies Geographic Origins of Hazelnuts
- New Research Could Fine-tune CRISPR
- 20 Years of GMOs in Brazil
- Updated ISAAA Infographics: Where are Biotech Crops Grown in the World?
Subscribe to CBU: