GhMAP3K40 Regulates Plant Defense Genes but Negatively Affects Plant Growth and DevelopmentSeptember 2, 2015
Mitogen-activated protein kinase (MAPK) cascades mediate various responses in plants with one of its top components being MAP3K. However, little is known about the role of MAP3Ks, especially in cotton. Researchers from the Shandong Agricultural University in China isolated an MAPK gene from cotton, GhMAP3K40, expressed it in Nicotiana benthaminana and tested its function.
Plants overexpressing GhMAP3K40 had enhanced tolerance to drought and salt stress at the germination stage. However, at the seedling stage, the transgenics suffered severe damage after various stresses. Defense-related genes were activated in transgenic plants, suggesting that GhMAP3K40 regulates defense responses. However, the transgenics were less able to prevent pathogen invasion due to defects in the cell structure of the leaves. The root systems of the control plants also were stronger compared with the transgenic plants.
These results suggest that GhMAP3K40 positively regulate defense response, but causes reduced tolerance to biotic and abiotic stress due to its negative role in growth and development by down-regulating the lignin biosynthesis.
For more information on the study, read the full article on Plant Science.
Biotech Updates is a weekly newsletter of ISAAA, a not-for-profit organization. It is distributed for free to over 22,000 subscribers worldwide to inform them about the key developments in biosciences, especially in 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
- Scientific Criteria Proposed for Environmental Risk Assessment of LLP in Seed
- Workshop Presents Differences of Traditional and Modern Biotech in Egypt
- Agri-biotech Researchers Develop RNA Sprays to Modify Crops
- FDA Completes Early Food Safety Evaluation for Soybean Stress Tolerance Trait
- USDA Approves Simplot's GM Potato
- India's Former Agriculture Minister Pitches for GM Crop Field Trials
- Vietnam Requires Agbiotech Companies to Put up GM Corn Plants to Enter Market
- Certified GM Foods in China Safe, According to the Ministry of Agriculture
- Climate Change Alters Genetic Diversity of Wild Plant Species
- Gene Stacking Provides Better Resistance in Potato against Late Blight
- GhMAP3K40 Regulates Plant Defense Genes but Negatively Affects Plant Growth and Development
- Growth and Development of Colorado Potato Beetle Larvae on Potatoes Expressing the Rice OCII Gene
- Systemin Overexpression in Tomato Enhances Its Resistance to Biotic Stresses
Beyond Crop Biotech
- Canadian Researchers Conduct First Large-Scale Genetic Study of Cannabis and Hemp
- Updated Pocket Ks on Biotech Now Available
Read the latest:
- Biotech Updates (February 21, 2024)
- Gene Editing Supplement (February 14, 2024)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: