Antibacterial activities in the salivary glands of female mosquitoes Aedes aegypti Public Deposited

http://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/xp68kk82z

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  • Antibacterial activities in the salivary glands of female mosquitoes Aedes aegypti were investigated in this study. The mean salivary bacteriolytic activity, during a period of 14-day of female mosquitoes exposed to five different concentrations of Gram-positive bacteria Micrococcus lysodeikticus in the sucrose meal, was detected by a lysoplate method. A logarithmic regression (R²=0.73) fits the different levels of bacteriolytic activity during the entire period. As the concentration of bacteria in the sugar meal increases, the level of mean salivary bacteriolytic activity increases. A maximum level of bacteriolytic factor may exist in the salivary gland when the concentration of M. lysodeikticus in the sucrose meal exceeds 0.6 g/100 ml. One way analysis of variance and multiple range analysis for the different levels of bacteriolytic activity further validate this finding. The mortality of mosquitoes in the different treatments was not affected by the quanti ties of this nonpathogenic bacteria in the sugar meal. Salivary bacteriostatic activity of female mosquitoes against Gram-negative bacteria Escherichia coli was not detectable in our study, despite positive preliminary results.
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