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Bacillus thuringiensis vegetative insecticidal proteins (VIPs) are not homologous to other known Cry proteins, and they act against lepidopteran larvae via a unique process. All reported studies on the mode of action of Vip3 proteins have been performed on the Vip3A family, mostly on the Vip3Aa subfamily. Vip3Aa proteins are activated by midgut proteases, and they cross the peritrophic membrane and...
In this study, vegetative insecticidal proteins vip3 genes from Bacillus thuringiensis strains were detected based on polymerase chain reaction–high resolution melt (PCR–HRM) analysis. A pair of primers was designed according to the conservative sequences in 150 bp region of the known vip3 subfamily. The 150 bp regions of difference vip3 genes have only a few nucleotide difference vip3 genes were...
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