Does feeding on Bt-maize affect the slug Arion vulgaris (Mollusca: Arionidae)?

作者：Hoenemann Linda; Nentwig Wolfgang

来源：Biocontrol Science and Technology, 2010, 20(1): 13-18.

DOI：10.1080/09583150903308707

• Bt-maize
• non-target organism
• Arion vulgaris
• feeding experiment
• life history traits

Via expression of Cry-proteins, toxic for specific insect groups, genetically modified Bacillus thuringiensis (Bt) maize offers an effective protection against insect pests. In a laboratory experiment with two transgenic and two non-transgenic maize varieties, a potential impact of Bt-maize was examined for the non-target slug Arion vulgaris. Lifetime after field collection, weight change and oviposition was examined for slugs fed with Bt-maize, non Bt-maize or dandelion (Taraxacum officinale). Test parameters were neither significantly different between transgenic and non-transgenic varieties nor among the maize varieties overall. Slugs fed with dandelion showed a significantly longer lifetime after field collection, gained significantly more weight and laid eggs. The results did not show a Bt-effect but indicated the general poor quality of maize as food resource for slugs.

• 出版日期2010