Autor(es): Pridgeon, Julia W.; Becnel, James J.; Clark, Gary G.; Linthicum, Kenneth J.

Resumo: Using quantitative polymerase chain reaction (QPCR), the relative transcriptional levels of cytochrome c oxidase subunit 3 (COS) were studied in Aedes aegypti in response to treatment with acetone, permethrin, and fipronil. The transcriptional levels of CO3 were significantly (P < 0.05) higher in acetone-treated Ae. aegypti compared with that in untreated samples. Using ribosomal L24, heat shock protein (HSP), and actin as reference genes, relative transcription levels of CO3 in acetone-treated Ae. aegypti were 2.88 c 0.38-, 2.60 c 0.60-, and 3.24 c 0.70-fold higher, respectively, compared with that in untreated mosquitoes. Transcriptional levels of CO3 were induced significantly higher (6.54 c 1.22-, 4.62 c 0.74-, and 9.47 c 3.71-fold, respectively) by permethrin at LD10 compared with acetone (P < 0.05). Taken together, our results suggest that overexpression of CO3 is tightly regulated in Ae. aegypti in response to xenobiotic treatment.

Palavras-Chave: Permethrin; Fipronil; Overexpression; Cytochrome c oxidase; Aedes aegypti; Yellow fever mosquito

Imprenta: Journal of Medical Entomology, v. 46, n. 4, p. 810-819, 2009.

Descritores: Aedes aegypti - Proteins ; Aedes aegypti - Public health

Data de publicação: 2009

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