Larvicidal and adulticidal effects and ultrastructural changes of larvae midgut epithelium of musca domestica (diptera: muscidae) fed with bacillus thuringiensis var. kyushuensis
Rev. Soc. Bras. Med. Trop
; 52: e20190135, 2019. graf
Article
em En
| LILACS
| ID: biblio-1041502
Biblioteca responsável:
BR1.1
ABSTRACT
Abstract INTRODUCTION:
Musca domestica is resistant to many insecticides; hence, biological control is a suitable alternative.METHODS:
We evaluated the lethality of strain Btk176 towards the larval and adult M. domestica and the histopathological effects in the larvae midgut.RESULTS:
We observed 99% larval and 78.9% adult mortality within 48 hours of spore ingestion (dosage, 2.4×108 CFU/ml). The histopathological effects were consistent with cytotoxicity. PCR analysis showed the presence of the cry1Ba gene. Transmission electron microscopy revealed a bipyramidal parasporal body. Thurigiensin activity was not detected.CONCLUSIONS:
The serovar, Btk176 might be a potential biocontrol agent for houseflies.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Bacillus thuringiensis
/
Toxinas Bacterianas
/
Moscas Domésticas
/
Inseticidas
/
Larva
Tipo de estudo:
Evaluation_studies
Limite:
Animals
Idioma:
En
Revista:
Rev. Soc. Bras. Med. Trop
Assunto da revista:
MEDICINA TROPICAL
Ano de publicação:
2019
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil