Search results for "Insect protease"

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Susceptibility of Spodoptera frugiperda and S. exigua to Bacillus thuringiensis Vip3Aa insecticidal protein

2011

The Vip3Aa protein is an insecticidal protein secreted by Bacillus thuringiensis during the vegetative stage of growth. The activity of this protein has been tested after different steps/protocols of purification using Spodoptera frugiperda as a control insect. The results showed that the Vip3Aa protoxin was stable and retained full toxicity after being subjected to common biochemical steps used in protein purification. Bioassays with the protoxin in S. frugiperda and S. exigua showed pronounced differences in LC(50) values when mortality was measured at 7 vs. 10d. At 7d most live larvae were arrested in their development. LC(50) values of "functional mortality" (dead larvae plus larvae rem…

InsecticidesLongevityBacillus thuringiensisInsect pest controlInsect proteaseBacterial ProteinSpodopteraSpodopteraMedian lethal doseMicrobiologyLethal Dose 50Vegetative insecticidal proteinBacterial ProteinsSpecies SpecificityBacillus thuringiensisparasitic diseasesExiguaProtein purificationBotanyAnimalsBacillus thuringiensiBioassayPest Control BiologicalInsecticideEcology Evolution Behavior and SystematicsbiologyAnimalfungiMidgutbiology.organism_classificationBioinsecticideHost-Pathogen InteractionMode of actionLarvaHost-Pathogen InteractionsInstarBiological AssayElectrophoresis Polyacrylamide GelDisease SusceptibilityJournal of Invertebrate Pathology
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