Effects of Bt-maize material on the life cycle of the land snail Cantareus aspersus
نویسندگان
چکیده
Insect resistant Bt-maize (MON 810) expresses active Cry1Ab endotoxin derived from Bacillus thuringiensis (Bt). Snails constitute non-target soil species potentially exposed to Bt-toxin through consumption of plant material and soil in fields where transgenic plants have been grown. We studied the effect of the Cry1Ab toxin on survival, growth and egg hatchability of the snail Cantareus aspersus. From the age of 4–88 weeks, snails were fed either powdered Bt-maize or non-Bt-maize and exposed to soil samples collected after harvesting either the Bt-maize or non-Bt-maize. We applied four treatments: non-Bt soil + non-Bt-maize (MM); Bt soil + Bt-maize (BB), non-Bt soil + Bt-maize (MB), Bt soil + non-Btmaize (BM). Eggs laid by snails not exposed to Bt-toxinwere also exposed to the two types of soils (Bt and
منابع مشابه
Variation morphologique de la spermathèque chez l’escargot terrestre Cantareus aspersus
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