Global Research Team Identifies Pathogen Gene that Wheat Plants Detect to ‘Switch On' ResistanceJanuary 10, 2018
A team of researchers from the University of Sydney, Commonwealth Scientific and Industrial Research Organization (CSIRO) in Australia, Rothamsted Research in the United Kingdom, and the University of Minnesota and U.S. Department of Agriculture in the United States has discovered the first rust virulence molecule that wheat plants detect to ‘switch on' built-in resistance and stave off the disease.
Stem rust is the most dangerous pathogen of wheat, caused by the fungus Puccinia graminis f. sp. tritici (Pgt). Ug99, a particularly destructive form of Pgt, has recently received much attention because of its spread across Africa and the Middle East. The findings by this group of scientists published in Science reveal how the immune system in plants resistant to this disease directly recognizes a specific fungal protein to subsequently "turn on" resistance and fend off the pathogen.
Through this research, it will be possible to do DNA testing to identify whether a rust in a wheat crop anywhere in the world can overcome a rust-resistance gene, called Sr50. "Now that we've identified how stem rust strains are able to overcome Sr50 resistance – by mutation of a gene we've identified called AvrSr50 – this information can be used to help prioritize resistance genes for deployment," said University of Minnesota Plant Pathology Adjunct Professor Peter Dodds from CSIRO.
For more details about this research, read the news release from the University of Minnesota.
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
- Team of International Scientists Unlocks Peanut's Genetic Code
- IITA Begins Confined Field Trials of Transgenic Cassava
- Global Research Team Identifies Pathogen Gene that Wheat Plants Detect to ‘Switch On' Resistance
- Salk Scientists Discover Unusual Immune Response of Plants to Bacterial Infection
- Researchers Find Genetic Mechanism that Could Enhance Yield of Cereal Crops
- FSANZ Releases Approval Report for Food Derived from Golden Rice
- European Commission Authorizes Six GM Crops for Food and Feed
- TaHDZipI-5 Involved in Drought and Frost Tolerance in Wheat
- Plastocyanin Gene from Seepweed Improves Oxidative Stress Tolerance in Arabidopsis
- Overexpression of PaFKBP12 in Arabidopsis Enhances Tolerance to Multiple Stresses
Plant Breeding Innovations
- Scientists Use CRISPR-Cas9 Technology to Improve Drought and Salt Tolerance in Rice
- Genome Editing of CLAVATA Genes in Canola Regulates Multilocular Silique Development
Beyond Crop Biotech
- Researchers Find Gene Involved in Arsenic Resistance in Poplar
From the BICs
- Workshop Discusses Importance of Biotech in Sustainable Agri Dev't in Vietnam
- ISAAA Blog: How Filipino News Writers Define Biotechnology
Subscribe to CBU: