在巴西,从一个临灭绝的灵长类动物中分离出罕见的Citrobacter pasteurii的奇怪案例
João Pedro Rueda Furlan1, Fábio Parra Sellera2, Irys Hany Lima Gonzalez3
1Department of Clinical Analyses, Toxicology and Food Science, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Brazil.
Comparative immunology, microbiology and infectious diseases
|September 14, 2024
概括
一种Citrobacter pasteurii菌株在塔马林中引起了腹,突出了潜在的动物传染风险. 准确的鉴定对于管理这些罕见的野生动物感染至关重要.
科学领域:
- 微生物学 微生物学
- 动物传播疾病 动物传播疾病
- 基因组学就是基因组学.
背景情况:
- 杆菌属包括人类的病原体,但野生动物的感染并不常见.
- 杆菌是人类腹的罕见原因,文献有限.
- 野生动物监测潜在的动物传染病原体如Citrobacter是必不可少的.
研究的目的:
- 为了识别和表征导致黑狮的腹的细菌菌株.
- 通过全基因组测序来确定孤立菌株的正确分类.
- 调查Citrobacter pasteurii.的遗传多样性和潜在的动物感染影响.
主要方法:
- 细菌分离物的生物化学鉴定A318.8.
- 全基因组测序和基因组学分析.
- 平均核酸标识 (ANI) 和数字DNA-DNA杂交 (dDDH) 用于物种确认.
- 对人口多样性的单核酸多态性 (SNP) 分析.
主要成果:
- 菌株A318,最初被确定为Trabulsiella guamensis,通过族系学,ANI和dDDH证实是Citrobacter pasteurii.
- 将C. pasteurii误认为Citrobacter youngae被发现并纠正.
- 在C. pasteurii种群中观察到高度的遗传多样性.
- 在研究的菌株中没有检测到获得的抗菌素耐药性基因或等离子体复制体.
结论:
- 使用黄金标准方法准确识别细菌至关重要,特别是对于罕见的病原体.
- Citrobacter pasteurii 是一种潜在的动物人类病原体或动物病原体,需要进一步监测.
- 需要继续进行研究,以了解和减轻与野生动物中新出现的病原体相关的风险.
相关概念视频
01:18Other Unique Bacteria
Magnetic bacteria exhibit a directed movement called magnetotaxis, driven by structures called magnetosomes. These magnetosomes consist of chains of magnetic particles made of either magnetite (Fe₃O₄) or greigite (Fe₃S₄) and are organized in a linear conformation by a protein scaffold within invaginations of the cell membrane. The bacteria align along the north–south magnetic field lines, much like a compass needle. They are typically microaerophilic or anaerobic and are commonly found near the...
01:25Clinical Significance of Antibiotic Resistance
Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...