University of Kentucky, Department of Entomology, S-225 Agricultural Science Center Building North, Lexington, KY 40546-0091, USA; Vanderbilt University, Department of Biological Sciences, 465 21st Ave. South, Medical Research Building III, Nashville, TN 37232, USA.
J Invertebr Pathol. 2013 Oct;114(2):173-7. doi: 10.1016/j.jip.2013.08.001. Epub 2013 Aug 8.
Wolbachia are maternally inherited intracellular bacteria that frequently infect a diverse range of arthropod species. Empirical and theoretical studies examining Wolbachia invasiveness have emphasized Wolbachia effects on adult hosts, but recent studies show that Wolbachia impacts on immature hosts can be important also. Here, we have examined for effects of Wolbachia infection in Aedes aegypti. Specifically, differential survivorship is observed when young larvae (1st instar) are exposed to older Aedes albopictus larvae (4th instar) or con-specific larvae. In an additional experiment, we have examined for differential behavior and observed that Wolbachia-infected larvae differ from uninfected larvae in their reaction to light stimulation. Our results support a hypothesized effect of Wolbachia on A. aegypti larval behavior. The results are discussed in relation to the ability of Wolbachia to invade natural populations and recently applied public health strategies that target the replacement or suppression of this important disease vector.
沃尔巴克氏体是一种通过母系遗传的胞内细菌，广泛存在于各类节肢动物中。已有大量研究从理论和实践角度探讨了沃尔巴克氏体的入侵性，这些研究主要聚焦于沃尔巴克氏体对成体宿主的影响，但近期研究表明，沃尔巴克氏体对幼体宿主的影响同样值得关注。本研究以埃及伊蚊为研究对象，探究了沃尔巴克氏体感染对其产生的影响。研究发现，当幼龄幼虫（1 龄）接触老龄白纹伊蚊幼虫（4 龄）或同种幼虫时，幼龄幼虫的存活率会产生差异。在进一步的实验中，我们还观察到，沃尔巴克氏体感染的幼虫与未感染的幼虫在对光刺激的反应方面存在差异。我们的研究结果支持沃尔巴克氏体对埃及伊蚊幼虫行为产生影响的假设。本研究结果与沃尔巴克氏体入侵自然种群的能力以及近期应用的公共卫生策略（以取代或抑制这种重要病媒蚊为目标）有关。
