Straif S C, Beier J C
Department of Tropical Medicine, School of Public Health and Tropical Medicine, Tulane University, New Orleans, LA 70112, USA.
J Med Entomol. 1996 Jul;33(4):608-12. doi: 10.1093/jmedent/33.4.608.
Blood-feeding behavior and survivorship of individual Anopheles gambiae Giles females were observed daily in cohorts with either access to sugar (n = 76) or without sugar (n = 80). Individual mosquitoes were allowed to feed daily on an anesthetized mouse. Mosquitoes provided with sugar lived on average almost 3 d longer than females without sugar (19.0 versus 16.2 d). After stratification by age, mosquitoes in the youngest (5-12 d) and middle (13-19 d) age strata showed no differences in blood-feeding patterns relative to sugar availability. However, mosquitoes from the oldest age group and no access to sugar had more total blood feeds than long-lived females ( > or = 20 d) with access to sugar (9.8 versus 6.5). Furthermore, mosquitoes > or = 20 d old and without sugar available had a higher blood-feeding frequency than females that had sugar available (0.36 versus 0.25 blood meals per female per day). The enhanced blood-feeding capability among older sugar-deprived An. gambiae emphasized the close association between sugar-feeding and blood-feeding behavior and the potential consequences for the transmission of malaria parasites and other pathogens.
每天观察冈比亚按蚊（Anopheles gambiae Giles）个体雌蚊的吸血行为和存活情况，将其分为有糖供应组（n = 76）和无糖供应组（n = 80）。让每只蚊子每天吸食一只麻醉小鼠的血液。有糖供应的蚊子平均存活时间比无糖供应的雌蚊长近3天（分别为19.0天和16.2天）。按年龄分层后，最年轻（5 - 12天）和中间年龄段（13 - 19天）的蚊子在吸血模式上与糖供应情况无关。然而，来自最年长年龄组且无糖供应的蚊子总吸血次数比有糖供应的长寿雌蚊（≥20天）更多（分别为9.8次和6.5次）。此外，年龄≥20天且无糖供应的蚊子吸血频率比有糖供应的雌蚊更高（分别为每只雌蚊每天0.36次和0.25次血餐）。老年无糖供应的冈比亚按蚊吸血能力增强，这突出了吸食糖与吸血行为之间的紧密联系以及对疟原虫和其他病原体传播的潜在影响。
