Search results for "Sesamia nonagrioides"

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Toxicity and mode of action of Bacillus thuringiensis Cry proteins in the Mediterranean corn borer, Sesamia nonagrioides (Lefebvre)

2006

ABSTRACT Sesamia nonagrioides is one of the most damaging pests of corn in Spain and other Mediterranean countries. Bt corn expressing the Bacillus thuringiensis Cry1Ab toxin is being grown on about 58,000 ha in Spain. Here we studied the mode of action of this Cry protein on S. nonagrioides (binding to specific receptors, stability of binding, and pore formation) and the modes of action of other Cry proteins that were found to be active in this work (Cry1Ac, Cry1Ca, and Cry1Fa). Binding assays were performed with 125 I- or biotin-labeled toxins and larval brush border membrane vesicles (BBMV). Competition experiments indicated that these toxins bind specifically and that Cry1Aa, Cry1Ab, an…

Cell Membrane PermeabilityMembrane permeabilityBacterial ToxinsBacillus thuringiensisSesamia nonagrioidesBacterial ToxinBacterial ProteinZea maysApplied Microbiology and BiotechnologyOstriniaHemolysin ProteinsZea mayBacterial ProteinsEndotoxinBacillus thuringiensisBotanyInvertebrate MicrobiologyAnimalsBacillus thuringiensiBinding siteMode of actionPest Control BiologicalGenetically modified maizeBacillus thuringiensis ToxinsEcologybiologyMicrovilliAnimalfungifood and beveragesHemolysin Proteinbiology.organism_classificationPlants Genetically ModifiedEndotoxinsLepidopteraCry1AcBiochemistryLarvaFood ScienceBiotechnology
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