ASPECTOS DA ECOLOGIA QUÍMICA DE Rhipicephalus sanguineus (Latreille, 1806) (ACARI: IXODIDAE) EM DUAS RAÇAS DE CÃES

• Ano de defesa: 2008
• Autor(a) principal: LOULY, Carla Cristina Braz
• Orientador(a): BORGES, Lígia Miranda Ferreira
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Goiás
• Programa de Pós-Graduação: Doutorado em Ciência Animal
• Departamento: Ciências Agrárias
• País: BR
• Palavras-chave em Português: 2,6-diclorofenol, feromônio sexual, Ixodidae, olfatometria, identificação
• Palavras-chave em Inglês: 2,6-dichlorophenol - sex pheromone - Ixodidae - olfactometer bioassay - identification
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::MEDICINA VETERINARIA::MEDICINA VETERINARIA PREVENTIVA::SAUDE ANIMAL (PROGRAMAS SANITARIOS)
• Link de acesso: http://repositorio.bc.ufg.br/tede/handle/tde/1111

This study aimed to identify 2,6-dichlorophenol (2,6-DCP) in Amblyomma cajennense and to evaluate its role in A. cajennense and Rhipicephalus sanguineus courtship. Hexanic extract from attractive females was purified by solid phase extraction and the phenol was identified by the single ion monitoring method using GC/MS. In an olfactometer, the responses of A. cajennense and R. sanguineus males to females, control rubber septa or rubber septa impregnated with 2,6-DCP at 50, 500, and 5000 ng, respectively, were studied. 2,6-DCP was identified in A. cajennense extract and the males oriented themselves toward the concentration of 500 ng. These septa and the females were recognized as copula partners. The septa treated with 2,6-DCP did not attract and were not even recognized by the R. sanguineus males, whereas the females were recognized. Due to the presence of 2,6-DCP in A. cajennense and the results of biological bioassays, it was concluded that this compound acts as an attractant and mounting sex pheromone in this tick, but it does not play any role in R. sanguineus courtship.