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从非洲迁徙来的雀形目鸟类的毛栉草蚤中鉴定出非洲立克次体和沃尔巴克氏体。

Identification of Rickettsia africae and Wolbachia sp. in Ceratophyllus garei fleas from Passerine birds migrated from Africa.

机构信息

Institute of Virology, Slovak Academy of Sciences, Bratislava, Slovak Republic.

出版信息

Vector Borne Zoonotic Dis. 2012 Jul;12(7):539-43. doi: 10.1089/vbz.2011.0645. Epub 2012 Mar 26.

Abstract

The aim of the study was to reveal new aspects of the role of flea vector taken from migratory birds by screening of specimens with molecular biological methods. A field study was done in fishponds in Slovakia. Actually, 47 fleas were collected from reed warblers (Acrocephalus scirpaceus) and their nests. DNA was extracted and analyzed for representatives of the orders Rickettsiales. A rickettsia that shares 99.7% of identity by gltA gene with Rickettsia africae was identified in Ceratophyllus garei collected from A. scirpaceus. Moreover, two Wolbachia sp. were also detected in fleas. This is the first record of R. africae and Wolbachia sp. identified so far in Central Europe in fleas collected from migratory bird returning from Africa. This molecular study extends the geographic range and vector spectrum of arthropod-borne agents.

摘要

本研究旨在通过分子生物学方法对从候鸟中采集的跳蚤媒介进行筛选,揭示其作用的新方面。在斯洛伐克的鱼塘进行了实地研究。实际上,从芦苇莺(Acrocephalus scirpaceus)及其巢中收集了 47 只跳蚤。提取 DNA 并分析了代表立克次体目(Rickettsiales)的代表。从 A. scirpaceus 中采集的 Ceratophyllus garei 中鉴定出一种与非洲立克次体(Rickettsia africae)在 gltA 基因上具有 99.7%同一性的立克次体。此外,还在跳蚤中检测到两种 Wolbachia sp.。这是迄今为止在从中非返回的候鸟中采集的跳蚤中鉴定出的非洲立克次体和 Wolbachia sp.在中欧的首次记录。这项分子研究扩展了节肢动物传播病原体的地理范围和媒介谱。

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