Asian Corn Borer Parasite Not Sensitive to Bt Toxin
May 18, 2016 |
Researchers from the Chinese Academy of Agricultural Science and China Agriculture University investigated the effects of Bt maize with Cry1Ac protein on Macrocentrus cingulum, which parasitizes Asian corn borer.
Results of the indirect bioassay showed that parasitism rate, cocoon weight, and the number of parasitoid progeny produced per host were significantly decreased when M. cingulum-parasitized Cry1Ac-susceptible corn borers were fed with purified Cry1Ac; while life-table parameters of M. cingulum were not significantly affected. These results show that the detrimental effects detected with a Cry1Ac-susceptible host were mediated by poor host quality. On the other hand, direct bioassay showed no difference in life-table parameters when M. cingulum adults were fed with or without Cry1Ac. These findings demonstrate that M. cingulum is not sensitive to Cry1Ac at concentration levels that exceed those encountered in Bt maize fields.
Read the original article in Insect 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
- U.S. National Academies Find Biotech Crops Not Harmful to Human Health and the Environment
- Glyphosate Unlikely Carcinogenic to Humans, Says Joint WHO/FAO Committee Report
- Cairo University Celebrates Biotech Day 2016
- FSU-Cornell Research Team Discovers 'Dark Matter' in Maize Genome
- Newly Discovered Stem Cell Pathway Will Increase Yields of Maize and Staple Crops
- Parliamentary Report Confirms Importance of Agricultural Innovation in Australia
- Bt Cotton Adoption Creates More Employment Opportunities in Female Laborers in Pakistan
- Chinese Scientists Evaluate Performance of Plant Gene as a Selectable Marker for Rice Transformation
- Agri Minister Matia Chowdhury Speaks on Biotech Efforts in Bangladesh
- First State of the World's Plants Report Launched
-
Research Highlights
- Asian Corn Borer Parasite Not Sensitive to Bt Toxin
- MdMLO19 Gene Knockdown in Apple Reduces Susceptibility to Powdery Mildew
- Researchers Analyze Rice QTL for Grain Size and Yield
-
Beyond Crop Biotech
- Scientists Genetically Engineer First Zika Virus Clone
-
Announcements
- SolGenomics Conference
-
Read the latest: - Biotech Updates (November 6, 2024)
- Gene Editing Supplement (October 30, 2024)
- Gene Drive Supplement (February 22, 2023)
-
Subscribe to BU: - Share
- Tweet