Plants Found to Overcome Hunger by Activating AutophagyMarch 21, 2018
Researchers at Japan's Tohoku University have discovered that plants activate autophagy in their leaf cells to derive amino acids that are used for survival under energy-starved "hunger" conditions. Autophagy is a process where plants "self-eat" the portion of intracellular proteins in their cells.
Drs. Masanori Izumi and Hiroyuki Ishida from Tohoku University had previously demonstrated that plant chloroplasts are actively digested through autophagy during energy starvation. The researchers focused on the precise role of chloroplast-targeted autophagy in the plant survival strategy under low-energy stress. "We hypothesized that chloroplast-associated autophagy is closely linked to the amino acid metabolism in energy-starved plants", said Izumi.
The study reports that when Arabidopsis thaliana is exposed to hunger stress as plants are transferred into complete darkness they can continue to grow for several days; autophagic digestion of chloroplast proteins is rapidly activated and amino acid levels increase. They found that this response during the early stage of hunger stress is suppressed in the mutant plants lacking autophagy machinery.
For more information, read the Tohoku University Research News.
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
- Crops Hold Rare Harmful Mutations that Reduce Productivity
- NY Student Wins Award on Solution for Potato Late Blight
- Golden Rice Gets Approval from Health Canada
- Mexican Researchers Develop GE Tomato that Decreases Hypertension
- Australian OGTR Releases Notifications of License Application for 2 GM Crops; Invites Comments on Commercial Release of GM Safflower
- Plants Found to Overcome Hunger by Activating Autophagy
- Expert Says New Breeding Technologies Can Help Grow More Food
- Report: Gains in Corn Production in the Philippines Largely Due to GE Seeds
- English Journalist Reviews Mark Lynas' Book, Seeds of Science
- Scientists Discover Gene that Confers Flood Tolerance, Drought Tolerance, and Disease Resistance in Rice
- Sheepgrass MADS-Box Genes Involved in Abiotic Stress Responses
- Researchers Find Genes Conferring Enhanced Defense against Cassava Bacterial Blight
Plant Breeding Innovations
- Chinese Researchers Pinpoint Maize Gene for Male Sterility
- BrAP2 Gene Holds Key to Improved Seed Production in Brassica
- CRISPR-Cas9 System Applicable in Cultivated Strawberry
- Scientists Shed Light on the Role of Abscisic Acid in Rice Disease Resistance
- Pocket K No. 56: Substantial Equivalence of GM and Non-GM Crops
- Book: How to Feed the World
Subscribe to CBU: