Cotton Pigment Glands Affect Development and Insecticide-Resistance of Cotton Bollworm
July 23, 2010| |
Cotton plants have globular pigment glands that contain gossypol. Gossypol is a toxic, non-nutritious, organic compound that has feeding prevention effects on many moths and butterflies.
Guangchao Kong of Zhejiang University, together with other scientists, conducted a study to investigate the effects of cotton pigment glands and gossypol on the growth, development and insecticide tolerance of cotton bollworm, a major cotton pest. Five generations of cotton bollworm larvae were grown on three pairs of cotton lines with glands on the leaves and glandless leaves. The larvae were also fed with five varying amounts of gossypol. Results showed that the larvae exposed to leaves with glands and fed with high levels of gossypol have decreased body weight and slow transformation from larvae to moth. These larvae also exhibited more tolerance to insecticides than those exposed to glandless cotton leaves. The growth inhibition and insecticide tolerance could be stimulated by the gossypol but could not be accrued and inherited.
Read more at http://dx.doi.org/10.1016/j.cropro.2010.03.016.
| |
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
- Governments Outline Global Protocol on Planet's Genetic Resources
- ABNE East Africa Regional Biosafety Training Workshop
- Senegal to Host 5th World Cowpea Conference
- Scientists Map Out Soybean Genome to Boost Oil and Protein Content
- Solae Discusses Omega-3 from GM Soybean at IFT
- U.S. Congress Asks USDA Secretary to Allow GM Alfalfa Planting
- USDA Grants Protection to 19 New Plant Varieties
- Dairyland Seed Introduces New Hybrid Alfalfa Line
- CFIA Decision: Sygenta GM Corn Event MIR162 Safe for Feed and Environment
- New Fusarium Chemotype Tightens FHB Tolerance Levels
- Peru Conference on AgroBiotech Advances
- World Halal Forum Facilitates Meeting of Ulama and GM Scientists
- Dong Nai Sets Up Biotech Center
- ASEM Forum Discusses Food Security
- OGTR Notification to Allow Limited Release of IR and HT Cotton
- UK University to Develop Improved Oat Varieties
- EFSA Seeks Consultation on Draft Guideline for Exposure of Soil Organisms to PPR
- IPM Implementation: Ask the Experts
- Plant Pores Give Up Their Secrets
- EC Publishes Recommendations on GMO Coexistence
-
Research Highlights
- Cotton Pigment Glands Affect Development and Insecticide-Resistance of Cotton Bollworm
- Yield Benefit and Fitness Cost of GM Rice Studied
- JIC Scientists Explain Hybrid Vigour
-
Announcements
- COP-MOP 5, Nagoya, Japan
-
Resources
- Biotechnology in United Arab Emirates, a GAIN Report
- Induced Plant Mutations in the Genomic Era
- Food Security and Climate Change in Dry Areas: Abstracts
-
Read the latest: - Biotech Updates (April 24, 2024)
- Gene Editing Supplement (April 24, 2024)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet