Daily blood feeding rhythms of laboratory-reared North American Culex pipiens.
Daily blood feeding rhythms of laboratory-reared North American Culex pipiens.
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DOI：
10.1186/1740-3391-12-1
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发表时间：
2014-01-22
影响因子：
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通讯作者：
Dworkin I
中科院分区：
文献类型：
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作者：
Fritz ML;Walker ED;Yunker AJ;Dworkin I
自由生活的疾病媒介昆虫的吸血是有节奏的，可以用来预测何时会发生传染性叮咬。这些每日节律也可以通过控制措施加以控制，如用杀虫剂处理过的蚊帐。尖音库蚊（Culex pipiens form pipiens）和尖音库蚊（C. p. f.）骚扰者是尖音库蚊（Culex pipiens）集合的两个成员，并且是整个北美的西尼罗河病毒的载体。库蚊是人类病原体和寄生虫的主要媒介，但库蚊的日吸血节律与人类病原体和寄生虫的日吸血节律不一致。据我们所知，没有人研究过骚扰。我们描述和比较了三个实验室饲养的尖音库蚊种群的每日吸血节律，其中一个已证实骚扰祖先。我们还研究了这三个群体的血液喂养时间的可塑性。大多数（>70%）C.p.f. pipiens和C.p.f.从大都会芝加哥，IL收集的骚扰，在暗期进行血液喂养。进食高峰出现在暗相中期，即熄灯后3-6小时。对于C.p.f. pipiens起源于宾夕法尼亚州，大多数蚊子（> 90%）在夜间和夜间早期吸血。C.p. f.在暗期拒绝吸血的骚扰者在暗期早期吸血的可能性低于C.p.f.来自芝加哥的尖音（> 50%）。C.p. f.来自宾夕法尼亚州的尖嘴蝠能够在光或暗相的任何时间容易地进食。C.p.f.骚扰者与C.p.f.相似。特别是当种群来自同一地理区域时。然而，对于C.p.f.，血液喂养的时间更灵活。pipiens种群相对于C. p. f.骚扰
Blood feeding by free-living insect vectors of disease is rhythmic and can be used to predict when infectious bites will occur. These daily rhythms can also be targeted by control measures, as in insecticide-treated nets. Culex pipiens form pipiens and C.p. f. molestus are two members of the Culex pipiens assemblage and vectors of West Nile Virus throughout North America. Although Culex species vector human pathogens and parasites, the daily blood feeding rhythms of C.p. f. molestus, to our knowledge, have not been studied. We described and compared the daily blood feeding rhythms of three laboratory-reared populations of Culex pipiens, one of which has confirmed molestus ancestry. We also examined the plasticity of blood feeding time for these three populations. For most (>70%) C.p. f. pipiens and C.p. f. molestus collected from metropolitan Chicago, IL, blood feeding took place during scotophase. Peak blood feeding occurred in mid-scotophase, 3-6 hours after lights off. For C.p. f. pipiens originating from Pennsylvania, most mosquitoes (> 90%) blood fed during late photophase and early scotophase. C.p. f. molestus denied a blood meal during scotophase were less likely to blood feed during early photophase (< 20%) than were C.p. f. pipiens from Chicago (> 50%). C.p. f. pipiens from Pennsylvania were capable of feeding readily at any hour of photo- or scotophase. Daily blood feeding rhythms of C.p. f. molestus are similar to those of C.p. f. pipiens, particularly when populations originate from the same geographic region. However, the timing of blood feeding is more flexible for C.p. f. pipiens populations relative to C.p. f. molestus.