Oviposition response of the mosquito, Culex quinquefasciatus to the secondary metabolite(s) of the fungus, Trichoderma viride
Mem. Inst. Oswaldo Cruz
;
98(2): 223-226, Mar. 15, 2003. ilus, tab, graf
Artigo
em Inglês
| LILACS
| ID: lil-334259
RESUMO
Secondary metabolites produced by Trichoderma viride, a deuteromycetes fungus, under submerged culture condition were formulated and evaluated for oviposition attractancy against gravid females of Culex quinquefasciatus mosquito. At a concentration of 10 æg ml-1 the formulation showed remarkable attractancy with an oviposition active index (OAI) of +0.52. When the oviposition attractancy of the formulation was compared with a known oviposition attractant, p-cresol, both at 10 æg ml-1, the former was found to be more attractive to result in 70 percent egg laying than the later with 30 percent egg laying. Thin layer chromatography fractions of the secondary metabolites showed that a fraction with Rf value of 0.88 was highly active as oviposition attractant with an OAI of +0.65. Further work on identification of the active principle(s) of the microbial formulation might lead to an oviposition attractant useful in mosquito vector management
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Oviposição
/
Trichoderma
/
Controle Biológico de Vetores
/
Cresóis
/
Culex
Limite:
Animais
Idioma:
Inglês
Revista:
Mem. Inst. Oswaldo Cruz
Assunto da revista:
Medicina Tropical
/
Parasitologia
Ano de publicação:
2003
Tipo de documento:
Artigo
País de afiliação:
Índia
Instituição/País de afiliação:
Indian Council of Medical Research/IN
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