USDA, ARS, CMAVE, Gainesville, FL 32608, USA.
J Insect Physiol. 2010 Nov;56(11):1659-64. doi: 10.1016/j.jinsphys.2010.06.011. Epub 2010 Jul 13.
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.
库蚊以多种花蜜为食，这些花蜜主要由碳水化合物和氨基酸组成，但对于这些不同的碳水化合物及其伴随的氨基酸对寿命的利用和影响知之甚少。通过在低量和高量食物饮食中饲养库蚊幼虫，产生了在营养上代表野外捕获和实验室饲养蚊子的成虫。然后，用低量或高量食物饮食饲养的幼虫提供假臭常山花蜜模拟物，其中含有碳水化合物和氨基酸的混合物，以评估花蜜氨基酸对寿命的影响。碳水化合物（有或没有氨基酸）是成虫饮食的关键组成部分，在缺乏碳水化合物的情况下，成年蚊子在 3-5 天内死亡。含有碳水化合物和氨基酸的花蜜模拟物并没有延长来自喂养不良或良好的幼虫的雄性成虫的寿命。然而，接受含有碳水化合物和氨基酸的成虫饮食的雌性蚊子比仅喂食糖的雌性蚊子寿命长 5%。
