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首页> 外文期刊>Journal of Clinical Microbiology >Lone Star Tick-Infecting Borreliae Are Most Closely Related to the Agent of Bovine Borreliosis
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Lone Star Tick-Infecting Borreliae Are Most Closely Related to the Agent of Bovine Borreliosis

机译:孤星T感染的疏螺旋体与牛疏螺旋体的病因最密切相关

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Although Borrelia theileri, the agent of bovine borreliosis, was described at the turn of the century (in 1903), its relationship with borreliae causing Lyme disease or relapsing fever remains undescribed. We tested the previously published hypothesis that spirochetes infecting Lone Star ticks (Amblyomma americanum) may comprise B. theileri by analyzing the 16S ribosomal DNAs (rDNAs) and flagellin genes of these spirochetes.B. theileri, the Amblyomma agent, and B. miyamotoi formed a natural group or clade distinct from but most closely related to that of the relapsing fever spirochetes. B. theileri and the Amblyomma agent were 97 and 98% similar at the nucleotide level within the analyzed portions of the 16S rDNA and the flagellin gene respectively, suggesting a recent divergence. The agent of bovine borreliosis might be explored as a surrogate antigen for the as-yet-uncultivatable Amblyommaagent in studies designed to explore the etiology of a Lyme disease-like infection associated with Lone Star ticks.
机译:尽管在世纪之初(1903年)描述了牛疏螺旋体病的病原体 Borrelia theileri ,但它与引起莱姆病或复发性发热的疏螺旋体的关系仍未描述。我们测试了先前发表的假设,即感染孤星tick( Amblyomma americanum )的螺旋可能包含 B。通过分析这些螺旋体的16S核糖体DNA(rDNA)和鞭毛蛋白基因来分析theileri 。 theileri Amblyomma 代理和 B。 miyamotoi 形成了一个自然群体或进化枝,与复发性发烧螺旋藻的进化特征不同,但关系最为密切。 B。 theileri Amblyomma 试剂在16S rDNA和鞭毛蛋白基因分析部分的核苷酸水平上分别有97%和98%的相似性,表明最近出现了分歧。在研究旨在研究与孤星might相关的莱姆病样感染的病因的研究中,可能将牛疏螺旋体病的病原体用作目前尚未培养的 Amblyomma 病原体的替代抗原。

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