Bt Maize Expressing a Fusion Gene Cry1Ab/Cry1Ac Does Not Harm Pollen FeedersJanuary 9, 2019
Hainan University scientists and partners assessed the possible impact of Bt maize pollen with Cry1Ab/Cry1Ac fusion on pollen-feeding non-target species through laboratory feeding assays. The observed species include ladybird (Propylea japonica), green lacewing (Chrysoperla nipponensis), and honey bee (Apis mellifera), which are common insects feeding on pollens of several crops. When they feed on Bt crops, they can be directly exposed to Cry proteins. Thus, these insects are often used in testing the effect of Bt plants on non-target organisms.
Results of the study showed that pupation rate and male adult fresh weight of ladybird were significantly increased when exposed to Bt maize pollen but other life-table parameters such as survival, pre-oviposition period, and fecundity were not affected. For green lacewing and honey bee, no significant differences were found in the life-table parameters of those exposed to non-Bt and Bt maize pollen.
The findings suggest that the three common pollen-feeders are not affected by Cry1Ab/Cry1Ac protein. Therefore, Bt maize will not pose a risk to these non-target organisms.
Read the research article in Toxins.
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
- 2020 Proclaimed International Year of Plant Health by UN General Assembly
- Forecast: Global Agri-biotech Market Size to Grow Significantly in the Next 4 Years
- Scientists Engineer Shortcut for Photosynthetic Glitch, Boosting Crop Growth by 40%
- USDA: No GMOs Detected, No Labeling
- Adoption of Biotech Crops Crucial in Pakistan
- SEARCA BIC Releases Policy Briefs on GM Crops
- Chinese Agri Ministry Approves Import of 5 GM Crops
- ISAAA Announces New SEAsiaCenter Director
- Structure and Function of Photosynthesis Protein Explained in Detail
- GM Potato Shows Improved Colorado Potato Beetle Resistance
- Bt Maize Expressing a Fusion Gene Cry1Ab/Cry1Ac Does Not Harm Pollen Feeders
Beyond Crop Biotech
- Researchers Develop GM Houseplants to Clean Air
- Trending News on Crop Biotech in 2018
- CRISPR-Cas9 Used to Modify Seed Morphology Traits in Wheat
- Scientists Characterize CRISPR Mutants Targeting Genes Modulating Pectin Degradation in Ripening Tomato
Read the latest:
- Biotech Updates (May 31, 2023)
- Gene Editing Supplement (May 31, 2023)
- Gene Drive Supplement (February 22, 2023)
Subscribe to BU: