Overexpression of AtOxR Improves Abiotic Stress Tolerance and Vitamin C Content in ArabidopsisOctober 12, 2016
Abiotic stresses are serious threats to plant growth and productivity, reducing average yields of most crops. Although abiotic stresses might bring forth different responses, most induce the accumulation of reactive oxygen species (ROS) in plant cells. L-ascorbic acid (vitamin C) is an antioxidant that defends plants against abiotic stresses. Moreover, vitamin C is also an important part of human nutrition. Hence, increasing vitamin C is important in improving abiotic stress tolerance and nutrition in crops.
Researchers, led by Yuanyuan Bu and Bo Sunwe from Northeast Forestry University in Japan, recently discovered that the expression of the Arabidopsis gene, AtOxR, is a response to multiple abiotic stresses. The AtOxR-overexpressing transgenic Arabidopsis had enhanced tolerance to abiotic stresses. Further analysis revealed that overexpression of AtOxR gene resulted in vitamin C accumulation in the transgenic plants.
The results showed that the AtOxR gene responds to multiple abiotic stresses and overexpressing it improves tolerance to abiotic stresses by increased vitamin C content in Arabidopsis thaliana.
For more information, read the article in BMC Plant Biology.
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
- Nobel Prize for Chemistry Awarded to Molecular Machine Makers
- Tanzania Plants First GM Maize Field Trial
- Ethiopian Government Commended for Agri-biotech Initiatives
- First Harvest of Arctic® Golden Apples Completed
- American Soybean Growers Urge US House, Senate to Support Biotech Education Funding
- Chinese Scientists Control Verticillium dahliae Wilt Using Gene Technology
- Expression of Phytase Gene in Wheat Endosperm Increases Availability of Iron and Zinc
- Transcription Factor ERF109 Improves Salt Tolerance in Arabidopsis
- Overexpression of AtOxR Improves Abiotic Stress Tolerance and Vitamin C Content in Arabidopsis
Plant Breeding Innovations
- TALENs-mediated Targeted DNA Insertion Approach for Potato
- Scientists Review the Use of Engineered Viruses in Genome Editing Tools
Beyond Crop Biotech
- Protective Protein of Water Bears Helps Human DNA Withstand X-ray Damage
- Beer Yeast Genomes Reveal Domestication History
From the BICs
- ACSAD and EBIC Hold Biotech Workshop and Form Arab Biotech Network
- ICABBBE 2017
Subscribe to CBU: