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Screening of Brazilian Bacillus thuringiensis isolates active against Spodoptera frugiperda, Plutella xylostella and Anticarsia gemmatalis

Monnerat, Rose Gomes, Batista, Andrea Cardoso, de Medeiros, Patrícia Telles, Martins, Érica Soares, Melatti, Viviane M., Praça, Lílian Botelho, Dumas, Vinicius Fiúza, Morinaga, Cristiane, Demo, Caroline, Gomes, Ana Cristina Menezes, Falcão, Rosana, Siqueira, Claudia Brod, Silva-Werneck, Joseilde Oliveira and Berry, Colin 2007. Screening of Brazilian Bacillus thuringiensis isolates active against Spodoptera frugiperda, Plutella xylostella and Anticarsia gemmatalis. Biological Control 41 (3) , pp. 291-295. 10.1016/j.biocontrol.2006.11.008

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Abstract

The toxicity of a collection of 1400 isolates of Bacillus thuringiensis was assessed against the Lepidoptera Spodoptera frugiperda, Anticarsia gemmantalis and Plutella xylostella. Twenty seven isolates showed toxicity to the larvae of these insects with three isolates demonstrating significantly greater potency than the standard strain against Lepidoptera, B. thuringiensis serovar kurstaki HD1. These isolates were all found to produce bipyramidal crystals and major spore-associated protein bands of approximately 130 and 65 kDa, consistent with the detection of at least one cry1 and one cry2 family gene in each. The high level of insecticidal activity of these isolates makes them excellent candidates for further development for use in the field.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Subjects: Q Science > Q Science (General)
Uncontrolled Keywords: Bacillus thuringiensis; Spodoptera frugiperda; Anticarsia gemmantalis; Plutella xylostella; Biological control; Crystal protein; cry genes.
Publisher: Academic Press
ISSN: 1049-9644
Last Modified: 04 Jun 2017 06:35
URI: http://orca.cf.ac.uk/id/eprint/62578

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