Midgut Basal Lamina Thickness and Dengue-1 Virus Dissemination Rates in Laboratory Strains of Aedes albopictus (Diptera: Culicidae)

Autor: Whei-Kuo Wu, Karamjit S. Rai, Dawn M. Verleye, Rex E. Thomas
Rok vydání: 1993
Předmět:
Zdroj: Journal of Medical Entomology. 30:326-331
ISSN: 1938-2928
0022-2585
DOI: 10.1093/jmedent/30.2.326
Popis: Strain differences in midgut basal lamina thickness, assessed by measurement in transmission electron micrographs, and disseminated infection rates of dengue-1 virus were compared among three laboratory strains of Aedes albopictus (Skuse). Mean basal lamina thicknesses for the New Orleans and Houston strains were significantly greater than those for the Oahu strain, which exhibits a higher disseminated infection rate than the former two. Although basal lamina thickness among the F1 progeny of reciprocal crosses of the Oahu and Houston strains were intermediate between the parental strains, they were too variable to be useful as markers in genetic studies. Measurements of basal laminae among individuals of the New Orleans strain, with disseminated or nondisseminated infections, failed to demonstrate a role for basal lamina thickness as a modulator of dengue-1 virus dissemination across the midgut epithelium of Ae. albopictus.
Databáze: OpenAIRE