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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/8040

Title: Oviposition Response of the Mosquito, Culex quinquefasciatus to the Secondary Metabolite(s) of the Fungus, Trichoderma viride
Authors: Geetha, I.
Paily, K. P.
Padmanaban, V.
Balaraman, K.
Keywords: Trichoderma viride - secondary metabolites - mosquito oviposition attractancy - Culex quinquefasciatus
Issue Date: 31-Dec-2003
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 98 Num 2
Abstract: 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 10µg 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 µ g ml -1 , the former was found to be more attractive to result in 70% egg laying than the later with 30% 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.
URI: http://hdl.handle.net/1807/8040
Other Identifiers: http://www.bioline.org.br/abstract?id=oc03059
Rights: Copyright 2003 - Instituto Oswaldo Cruz - Fiocruz
Appears in Collections:Bioline International Legacy Collection

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