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Effects of Bt-maize material on the life cycle of the land snail Cantareus aspersus
- Source :
- Applied Soil Ecology, Applied Soil Ecology, Elsevier, 2009, 42 (3), pp.236-242. 〈10.1016/j.apsoil.2009.04.007〉, HAL, Applied Soil Ecology, Elsevier, 2009, 42, pp.2.6-242, Applied Soil Ecology, Elsevier, 2009, 42 (3), pp.236-242. ⟨10.1016/j.apsoil.2009.04.007⟩, Kramarz, P, de Vaufleury, A, Gimbert, F, Cortet, J, Tabone, E, Andersen, M N & Krogh, P H 2009, ' Effects of Bt-maize material on the life cycle of the land snail Cantareus aspersus ', Applied Soil Ecology, vol. 42, no. 3, pp. 236-242 . https://doi.org/10.1016/j.apsoil.2009.04.007
- Publication Year :
- 2009
- Publisher :
- HAL CCSD, 2009.
-
Abstract
- Udgivelsesdato: 010709 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 to 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-Bt-maize (BM). Eggs laid by snails not exposed to Bt-toxin were also exposed to the two types of soils (Bt and non-Bt soil).At the end of growth (47 weeks of exposure), snails exposed to Bt-toxin in food and soil (BB) had a growth coefficient (GC) 25% lower than unexposed snails (MM). After the first period of reproduction (68 weeks) a significant difference remained for body mass GC between the BB and MM treatments. Differences in body mass were not significant at the end of exposure (88 weeks). For snails not previously exposed to Bt material, hatchability of eggs was similar in the soils tested. The outcome of the experiments indicates that, in growing snails, long-term exposure is needed to reveal an effect of Bt-maize. The hazard analysis of Bt-maize which we performed, based on a worst-case scenario, i.e. snails having no food choice, should now be complemented by other simple measurements, e.g. food intake, to understand the underlying mechanisms involved.
- Subjects :
- 0106 biological sciences
[SDV]Life Sciences [q-bio]
[ SDV.TOX.ECO ] Life Sciences [q-bio]/Toxicology/Ecotoxicology
Snail
maize
01 natural sciences
"MON 810"
"Snail"
Helicidae
Genetically modified crops
Long-term experiment
Bacillus thuringiensis
Gastropoda
snail
toxin
2. Zero hunger
Ecology
biology
Land snail
04 agricultural and veterinary sciences
Agricultural and Biological Sciences (miscellaneous)
LONG-TERM EXPERIMENT
toxine
HELIX ASPERSA
[SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology
"Genetically modified crops"
MON 810
maïs
"Helix aspersa"
Soil Science
Pulmonata
Animal science
biology.animal
Botany
GENETICALLY MODIFIED CROPS
Helix aspersa
croissance animale
gastéropode
escargot
CULTURES GENETIQUEMENT MODIFIEES
[ SDV ] Life Sciences [q-bio]
fungi
"Long-term experiment"
biology.organism_classification
Soil water
040103 agronomy & agriculture
0401 agriculture, forestry, and fisheries
010606 plant biology & botany
animal growth
Subjects
Details
- Language :
- English
- ISSN :
- 09291393
- Database :
- OpenAIRE
- Journal :
- Applied Soil Ecology, Applied Soil Ecology, Elsevier, 2009, 42 (3), pp.236-242. 〈10.1016/j.apsoil.2009.04.007〉, HAL, Applied Soil Ecology, Elsevier, 2009, 42, pp.2.6-242, Applied Soil Ecology, Elsevier, 2009, 42 (3), pp.236-242. ⟨10.1016/j.apsoil.2009.04.007⟩, Kramarz, P, de Vaufleury, A, Gimbert, F, Cortet, J, Tabone, E, Andersen, M N & Krogh, P H 2009, ' Effects of Bt-maize material on the life cycle of the land snail Cantareus aspersus ', Applied Soil Ecology, vol. 42, no. 3, pp. 236-242 . https://doi.org/10.1016/j.apsoil.2009.04.007
- Accession number :
- edsair.doi.dedup.....aa83474b54ac5c469d0616d26bbd045b