Paulson S L, Hawley W A
Department of Biological Sciences, Florida Atlantic University, Boca Raton 33431.
J Am Mosq Control Assoc. 1991 Jun;7(2):170-5.
Aedes triseriatus females collected as pupae from 2 tireyards and one woodlot were tested for susceptibility to La Crosse virus infection and ability to transmit the virus to suckling mice. Rates of disseminated infection and oral transmission were inversely correlated with mean body size. The smallest population developed disseminated infections and transmitted virus at significantly higher rates than the 2 larger populations. Adults derived from F1 eggs of the largest and smallest populations showed no significant differences in rates of disseminated infection and transmission, suggesting that the differences between the field populations were primarily caused by larval rearing conditions. When pupae of 2 strains of Ae. triseriatus were arranged into discrete size groups and tested for susceptibility to virus, an inverse relationship was observed between rate of disseminated infections and mean pupal wet weight. In contrast, Ae. hendersoni exhibited low transmission rates (7-10%) regardless of body size.
从2个轮胎堆场和1片林地采集的作为蛹的三带喙库蚊雌性个体，被检测对拉克罗斯病毒感染的易感性以及将病毒传播给乳鼠的能力。播散性感染率和经口传播率与平均体型呈负相关。最小的群体发生播散性感染并传播病毒的比例显著高于另外2个较大的群体。来自最大和最小群体的F1代卵发育成的成虫在播散性感染率和传播率上没有显著差异，这表明野外群体之间的差异主要是由幼虫饲养条件造成的。当将2个三带喙库蚊品系的蛹分成不同大小的组并检测其对病毒的易感性时，观察到播散性感染率与平均蛹湿重之间呈负相关。相比之下，亨德森伊蚊无论体型大小，传播率都很低（7%-10%）。
