Effects of tobacco genetically modified to express protease inhibitor bovine spleen trypsin inhibitor on non-target soil organisms.
Environ Biosafety Res
; 6(3): 183-95, 2007.
Article
en En
| MEDLINE
| ID: mdl-18001685
Effects of tobacco genetically modified to express the protease inhibitor bovine spleen trypsin inhibitor (BSTI) were examined in laboratory assays against three earthworm and one collembolan species. BSTI is a serine protease inhibitor that can bind to the digestive trypsins of insects feeding on modified plants, resulting in reduced growth and survival. Protease inhibitors are active against a broad range of insects, so may have a large impact on non-target organisms. Survival and fecundity of the collembolan Folsomia candida were unaffected by consumption of artificial diet containing BSTI-expressing tobacco leaf or powdered freeze-dried BSTI-expressing tobacco leaf that was added to soil. Similarly, mortality and growth of earthworms Aporrectodea caliginosa and Lumbricus rubellus did not differ significantly between soil augmented with BSTI-expressing tobacco leaves or unmodified control leaves. The redworm Eisenia fetida gained less weight when provided with BSTI-expressing leaves in one assay, but when the experiment was repeated, there was no significant difference between treatments. BSTI-expressing tobacco and unmodified control leaves decomposed at the same rate, indicating that the inhibitor had no effect on the overall function of the decomposer community of micro-flora and fauna in soil.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Oligoquetos
/
Artrópodos
/
Nicotiana
/
Inhibidores de Tripsina
/
Plantas Modificadas Genéticamente
Límite:
Animals
Idioma:
En
Revista:
Environ Biosafety Res
Asunto de la revista:
SAUDE AMBIENTAL
Año:
2007
Tipo del documento:
Article
País de afiliación:
Nueva Zelanda
Pais de publicación:
Francia