Scientists Discover Gene Controlling Multi-Herbicide ResistanceJuly 10, 2013
Scientists at the University of York and Durham have discovered a gene called AmGSTF1 that plays a key role in controlling multi-herbicide resistance (MHR) in black-grass and rye-grass. Black-grass and rye-grass are serious weed problems in cereal and oilseed rape rotations. An estimated 1.2 million hectares of land in the United Kingdom is now infested with black-grass. Scientists involved in the research showed that a gene producing the enzyme glutathione transferase (GST) switches on MHR.
When the gene was transferred to thale cress, the transgenic plants became resistant. "GSTs are known to detoxify herbicides directly, but we believe that our gene works as a master switch that activates a wide range of protective mechanisms," explains project leader Professor Rob Edwards from the Centre for Novel Agricultural Products at the University of York.
When sprayed with a GST-inhibiting chemical, the resistant plants became susceptible to weed killers, showing further the potential of GST inhibitors in improving the effectiveness of weed killers against resistant black-grass and rye-grass. Professor Edwards' team are also developing a genetic test for AmGSTF1 that could provide the first reliable diagnosis of MHR, an important step in deciding on the right weed control strategy.
For more details about this research, read the news release at: http://www.bbsrc.ac.uk/news/food-security/2013/130708-n-gene-discovery-aid-weed-control.aspx.
The Crop Biotech Update is a weekly newsletter of ISAAA, a not-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
- 2013 Global Food Security Index Shows Resilience in the Face of Challenges
- Scientists Compare Genomes of Wild and Domestic Tomato
- Africabio CEO Says GM Foods in South Africa is Safe
- International Leaders Attend High Level Meeting for Africa's Sustainable Agriculture
- Gates Foundation to Build Biotech Lab in Nigeria
- Geneticist Urges Mining the World's Seed Banks to Feed Tomorrow's Population
- Roger Beachy: "I Got into Biotech Because I Wanted to Reduce the Use of Pesticides"
- ICRISAT Releases Iron-biofortified Pearl Millet
- Bosan: GM Crops Answer to Food Insecurity
- APEC Seeks to Widen Use of Agri-biotech for Food Security
- Lee Foundation Funds Breeding of New Rice Scientists
- Scientists to Develop Drought Tolerant Potatoes for Central Asia
- New Study Provides Insights for Further Understanding of Plant's Metabolic Control
- Scientists Discover Gene Controlling Multi-Herbicide Resistance
- UK to Build World's First 'Library' of Potato Mutants
- Researchers Identify Fungus' Mechanism to Hinder Plant Defense
- Sustainable Intensification to Help Increase Food Production
- Scientists Conduct Multigene Engineering to Improve Maize Starch
Beyond Crop Biotech
- Researchers Discover Second Molecular Door for Insecticide in Mosquitoes
- REDBIO Argentina 2013
Read the latest:
- Crop Biotech Update (August 10, 2022)
- Genome Editing Supplement (August 10, 2022)
- Gene Drive Supplement (July 27, 2022)
Subscribe to CBU: