马体下下淋巴结感染Flavobacterium ceti的第一份报告及其完整基因组序列
Seung-Ho Ryu1, Beomsoon Jang2, Byung-Sun Kim3
1Department of Equine Resources Science, Cheju Halla University, Jeju, 63092, Republic of Korea.
Microbial pathogenesis
|November 1, 2024
概括
这项研究报告了Flavobacterium ceti的首次隔离和基因组测序,来自患有淋巴结的马. 此前在鱼中发现的这种多药耐药细菌可能会导致马类感染,并且应考虑在类似杀的病例中.
科学领域:
- 兽医微生物学 兽医微生物学
- 基因组学就是基因组学.
- 马类传染病 马类传染病
背景情况:
- 菌 (Flavobacterium ceti) 是一种不寻常的病原体在马的健康.
- 马中的下下淋巴结瘤可能呈现出类似于杀的临床症状.
研究的目的:
- 报告从马身上分离和完成Flavobacterium ceti (F. ceti IJFC025) 的基因组序列.
- 在马类环境中分析F. ceti的基因组特征和毒性潜力.
- 评估孤立菌株的抗菌素耐药性概况.
主要方法:
- 从马的淋巴结中分离和对F. ceti的全基因组测序.
- 生物信息分析包括基因预测和平均核酸标识 (ANI).
- 使用病原体寻找器和抗菌素敏感性测试进行病毒性基因识别.
主要成果:
- 确定了F. ceti IJFC025的完整基因组序列,包括一个3,144,426-bp染色体.
- ANI分析显示,与以前从鱼中分离的F. ceti有很高的相似性 (98.6%-98.8%).
- 该菌株表现出多种药物抗 gentamicin,ceftazidime,nalidixic acid,ciprofloxacin 和 colistin 的抗药性,尽管基因组中没有检测到抗药性基因.
- 确定了四种潜在的毒性基因,与与鱼隔离菌株相比,F. ceti IJFC025中存在独特的基因.
结论:
- 菌 (Flavobacterium ceti) 可能是一个机会性病原体,会引起诸如马下下淋巴腺病症等感染.
- 基因组数据提供了关于这种细菌在马匹中的潜在病原性方面的见解.
- 观察到的多药性耐药性凸显了在治疗策略中需要仔细考虑的必要性,并强调了将F. ceti纳入马类淋巴结核病的差异诊断的重要性.
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