Data/hora: 20/06/2024 18:55:44

Biblioteca(s): 	Embrapa Recursos Genéticos e Biotecnologia.	
Data corrente: 	19/04/2005	
Data da última atualização: 	30/05/2005	
Autoria: 	MONNERAT, R. G.; DIAS, D. G. S.; SILVA, S. F. da; MARTINS, E. S.; BERRY, C.; FALCÃO, R.; GOMES, A. C. M. M.; PRAÇA, L. B.; SOARES, C. M. S.	
Título: 	Screening of Bacillus thuringiensis strains effective against mosquitoes.	
Ano de publicação: 	2005	
Fonte/Imprenta: 	Pesquisa Agropecuária Brasileira, Brasília, DF, v. 40, n. 2, p. 103-106, 2005.	
Idioma: 	Inglês	
Conteúdo: 	The objective of this work was to evaluate 210 Bacillus thuringiensis strains against Aedes aegypti and Culex quinquefasciatus larvae to select the most effective. These strains were isolated from different regions of Brazil and are stored in a Bacillus spp. collection at Embrapa Recursos Genéticos e Biotecnologia, Brasília, Brazil. The selected strains were characterized by morphological (microscopy), biochemical (SDS-PAGE 10%) and molecular (PCR) methods. Six B. thuringiensis strains were identified as mosquito-toxic after the selective bioassays. None of the strains produced the expected PCR products for detection of cry4, cry11 and cyt1A genes. These results indicate that the activity of mosquitocidal Brazilian strains are not related with Cry4, Cry11 or Cyt proteins, so they could be used as an alternative bioinsecticide against mosquitoes.

Palavras-Chave: 	Aedes aegypt; Bioinseticida.	
Thesagro: 	Bacillus Thuringiensis; Culex Quinquefasciatus.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Recursos Genéticos e Biotecnologia (CENARGEN)	
Exemplares: 	CENARGEN - (24897-1) - UPC - AP - -- - 630.5 -  -  - DIS