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Detection of cry1 genes in Bacillus thuringiensis isolates from South of Brazil and activity against Aanticarsia gemmatalis (Lepidoptera:Noctuidae) BJM
Bobrowski,Vera Lucia; Pasquali,Giancarlo; Bodanese-Zanettini,Maria Helena; Fiuza,Lidia Mariana.
The bacterium Bacillus thuringiensis (Bt) is characterized by its ability to produce proteic crystalline inclusions during sporulation. Cry1 protein has insecticidal activity and is highly specific to certain insects and not toxic to unrelated insects, plants or vertebrates. In this work, the patogenicity of twelve Bt isolates was tested against Anticarsia gemmatalis, one of the most important insect pests of soybeans. Spore-crystal complex was applied to the surface of artificial diets and the mortality of A. gemmatalis larvae was assessed seven days after each treatment. When compared to a control Bt isolate known by its high toxicity to A. gemmatalis larvae, four novel Bt isolates exhibited even higher toxic activities against the insect, resulting in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacillus thuringiensis; Velvetbean caterpillar; Anticarsia gemmatalis; Cry1 gene; Delta-endotoxin.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000200006
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