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      Amino acids in nectar enhance longevity of female Culex quinquefasciatus mosquitoes.

      Journal of Insect Physiology

      Sex Characteristics, chemistry, Plant Nectar, Male, drug effects, Longevity, physiology, Larva, Female, Feeding Behavior, Culex, Animals, pharmacology, Amino Acids

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          Abstract

          Culex mosquitoes feed on a wide range of nectars consisting of mostly carbohydrates and amino acids, however, little is known about the utilization and effects of these different carbohydrates and their accompanying amino acids on longevity. Culex quinquefasciatus larvae were reared on low- and high-quantity food diets to produce adults that were nutritionally representative of wild-caught and laboratory-reared mosquitoes. Emerging adults reared on low- or high-quantity food diets as larvae were then provided Lantana camara nectar mimics containing mixtures of carbohydrates and amino acids to evaluate effects of nectar amino acids on longevity. Carbohydrates (with or without amino acids) were a critical component of the adult diet, and in their absence, adult mosquitoes died within 3-5 days. The nectar mimic that contained both carbohydrates and amino acids did not increase adult longevity of males originating from either poorly or well-fed larvae. However, females receiving adult diets containing both carbohydrates and amino acids lived 5% longer than females fed adult diets with only sugar. Published by Elsevier Ltd.

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          20609367
          10.1016/j.jinsphys.2010.06.011

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