Microsporidiosis (Microsporidia : Culicosporidae) alters blood-feeding responses and DEET repellency in Aedes aegypti (Diptera : Culicidae)
Autor(es): Barnard, Donald R.; Xue, Rui-De; Rotstein, Margaret A.; Becnel, James J.
Resumo: Infection of Aedes aegypti (L.) (Diptera: Culicidae) with Edhazardia aedis (Microsporidia: Culicosporidae) reduced mean human host attraction and landing/probing rates in female mosquitoes by 53 and 62%, respectively, compared with rates in microsporidia-free females. Infection with E. aedis reduced the average weight of unfed female mosquitoes by 4%, caused them to imbibe 23% less blood, and to lay 30% fewer eggs than healthy females. In contrast, E. aedis-infected mosquitoes required 20% more time (> 1 h) than healthy females to bite skin treated with 15% DEET. Statistically significant morbidity in E. aedis-infected females was indicated by reductions in host attraction and landing/probing responses, the mass of unfed and bloodengorged females, and fecundity, and by increased DEET repellency.
Palavras-Chave: Edhazardia Aedis; Attraction; Landing/Probing; Blood Feeding Fecundity; Repellent Protection Time
Imprenta: Journal of Medical Entomology, v. 44, n. 6, p. 1040-1046, 2007
Identificador do objeto digital: 10.1603/0022-2585(2007)44[1040:MMCABR]2.0.CO;2
Descritores: Aedes aegypti - Repellent
Data de publicação: 2007
