Effect of sublethal dosages of insecticides on chikungunya virus susceptible and refractory strains of Aedes aegypti
Autor(es): Mourya D T, Gokhale M D, Banerjee K
Resumo: Three strains of Aedes aegypti mosquitos viz (i) CRS, refractory to Chikungunya (CHIK) virus by oral route of infection but susceptible to DDT (2) CSS, susceptible to CHIK virus - also susceptible to DDT (3) CSS-DDTR, susceptible to CHIK virus but resistant to DDT, were examined for the effect of sublethal dosages of DDT - deltamethrin on their fecundity. Biochemical analysis showed that there was an increase in glutathione s-transferase activity in the CSS-DDTR strain which was associated with DDT resistance. There was an increase in acetylcholinesterase activity in the CRS strain, however it was not associated with resistance to all the three insecticides tested. No significant differences in the fecundity of these three strains were observed, though there was some increase in the number of non layers in CSS-DDTR strain after the treatment of DDT - mean number of eggs laid by CSS - CRS strains was slightly reduced (0.5 > p < 0.1) after the treatment with deltamethrin.
Imprenta: The Southeast Asian Journal of Tropical Medicine and Public Health, v. 25, n. 3, p. 536-542, 1994
Descritores: Chikungunya virus - Biosynthesis ; Chikungunya Virus - Virus ; Chikungunya virus - Public health
Data de publicação: 1994
