ASPECTOS DA ECOLOGIA QUÍMICA DE Rhipicephalus sanguineus (Latreille, 1806) (ACARI: IXODIDAE) EM DUAS RAÇAS DE CÃES
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Data
2008-08-15
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Universidade Federal de Goiás
Resumo
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.
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Citação
LOULY, Carla Cristina Braz. Aspacts of the chemical ecology of Rhipicephalus sanguineus(Latreille,
1806) (Acari: Ixodidae) in two breeds of dogs.. 2008. 70 f. Tese (Doutorado em Ciências Agrárias) - Universidade Federal de Goiás, Goiânia, 2008.