按蚊和埃及伊蚊种群中自然存在的沃尔巴克氏体可能会影响病媒控制战略的成功实施

O. Gnankiné, R. Dabiré
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引用次数: 0

摘要

沃尔巴克氏菌是一种母系遗传的细菌,通常在大约 50%的节肢动物物种(包括蚊媒物种)中检测到。沃尔巴克氏菌已在不同的蚊媒中检测到,但在大多数疟疾病媒中,其在自然种群中出现的报道是在 10 年前。埃及伊蚊是登革热病毒的主要传播媒介,一般不受沃尔巴克氏菌感染,感染记录很少,而且只包括少数几个种群。这种细菌影响着病媒种群的生物学、生态学和进化。沃尔巴克氏菌在减少疾病传播方面的作用引起了人们的极大兴趣。此外,这种细菌还能通过诱导细胞质不相容(CI)来操纵昆虫的繁殖,从而为病媒控制策略提供了新的途径。有趣的是,在大多数地区,伊蚊种群中的wMel或wAlbB沃尔巴克氏体感染表现出稳定的高频率,并有助于减少登革热在当地的传播。虽然在按蚊的自然种群中发现了沃尔巴克氏体,但人们对其对疟原虫的作用和影响知之甚少。如果不相容昆虫技术(IIT)和种群替代策略导致登革热流行国家(如美国、台湾、澳大利亚和巴西)的登革热传播显著减少,那么在蚊子中检测到的天然沃尔巴克氏体可能会对这些病媒控制策略构成威胁,这就提出了以下问题:"按蚊和埃及伊蚊种群中自然存在的沃尔巴克氏体是否会影响病媒控制策略的成功?本综述介绍了沃尔巴克氏体在按蚊和埃及蝇自然种群中的流行率方面的最新成果,并为制定基于沃尔巴克氏体的病媒控制提供了指导。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Natural occurrence of Wolbachia in Anopheles sp. and Aedes aegypti populations could compromise the success of vector control strategies
Wolbachia is a maternally inherited bacterium commonly detected in approximately 50% of arthropod species, including mosquito vector species. Wolbachia species have been detected in different mosquito vectors, but in most malaria vectors, their occurrence in natural populations were reported 10 years ago. Aedes aegypti, the main vector of dengue virus, is generally uninfected by Wolbachia, and records of infection are rare and only include a few populations. This bacterium impacts the biology, ecology, and evolution of vector populations. Wolbachia has attracted considerable interest because of its role in reducing disease transmission. Moreover, this bacterium is known to manipulate insect reproduction by inducing cytoplasmic incompatibility (CI), thus providing new avenues for vector control strategies. Interestingly, wMel or wAlbB Wolbachia infections in Aedes populations exhibit a stable high frequency in most areas and contribute to the reduction of local dengue transmission. In natural populations of Anopheles, although Wolbachia was found, little is known about its role and effect on Plasmodium. If the incompatible insect technique (IIT) and population replacement strategy resulted in significant decreases in the dengue transmission in endemic countries such as the USA, Taiwan, Australia, and Brazil, natural Wolbachia detection in mosquitoes may pose a threat to these vector control strategies, raising the following question: “Does the natural occurrence of Wolbachia in Anopheles sp. and Ae. aegypti populations compromise the success of vector control strategies? This review presents recent achievements of Wolbachia in natural Anopheles and Ae. aegypti populations in terms of prevalence and provides guidelines for the development of Wolbachia-based vector control.
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