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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/23631


Title: Oviposition Attractancy of Bacterial Culture Filtrates - Response of Culex quinquefasciatus
Authors: Poonam, S.
Paily, K. P.
Balaraman, K.
Keywords: bacteria - Culex quinquefasciatus   - oviposition attractant - metabolites
Issue Date: 31-Dec-2002
Publisher: Fundação Oswaldo Cruz, Fiocruz
Citation: Memórias do Instituto Oswaldo Cruz (ISSN: 1678-8060) Vol 97 Num 2
Abstract: Oviposition attractants could be used for monitoring as well as controlling mosquitoes by attracting them to lay eggs at chosen sites. In the present study, culture filtrates of seven bacterial species were tested for their attractancy against gravid females of Culex quinquefasciatus   . When their oviposition active indices (OAI) were studied, the culture filtrates of Bacillus cereus   and Pseudomonas fluorescens   exhibited oviposition attractancy (OAI = >0.3) at 100 ppm and the OAI were respectively 0.70 and 0.47. Culture filtrates of B. thuringiensis var. israelensis (wild type), B. t. var. israelensis (mutant) and B. sphaericus showed attractancy at 2000 ppm with OAI of respectively 0.71, 0.59 and 0.68. However, the OAI of B. megaterium as well as Azospirillum brasilense   was 0.13 (at 2000 ppm), which was less than 0.3 required to be considered them as attractants. When the oviposition attractancy of the bacterial culture filtrates were compared with that of a known oviposition attractant, p-cresol (at 10 ppm), the culture filtrates of B. t. var. israelensis (wild type) and B. cereus were found to be more active than p-cresol, respectively with 64.2 and 54.3% oviposition.
URI: http://hdl.handle.net/1807/23631
Other Identifiers: http://www.bioline.org.br/abstract?id=oc02069
Rights: Copyright 2002 - Instituto Oswaldo Cruz - Fiocruz
Appears in Collections:Bioline International Legacy Collection

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