艾洛科克克斯·克里比亚努斯 (Aerococcus kribbianus) sp. sp. 的种类. Nov. 是从猪便中分离出来的一种无氧细菌
Lu Bai1, Jayoung Paek1, Yeseul Shin1
1ABS Research Support Center, KRIBB, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea.
International journal of systematic and evolutionary microbiology
|February 28, 2024
概括
在猪便中发现了两种新的格拉姆阳性细菌,Aerococcus kribbianus. 这些细菌代表了Aerococcus属内的新物种,扩大了我们对微生物多样性的理解.
科学领域:
- 微生物学 微生物学
- 细菌学 细菌学是一门学科.
- 基因组学就是基因组学.
背景情况:
- 从猪便中分离出可选无氧的,Gram阳性菌.
- 最初的分析表明与瑞士的Aerococcus有着密切的关系.
研究的目的:
- 描述和分类来自猪便的新型细菌分离物.
- 确定分离物是否代表一种新物种或新分类.
主要方法:
- 16S rRNA基因测序用于遗传学分析.
- 多个位置的序列类型和家族遗传树的构建.
- 平均核酸标识 (ANI) 和数字DNA-DNA杂交 (dDDH) 用于基因组比较.
- 脂肪酸分析和二醇糖的组成的确定.
- 克里斯普尔阵列分析和基因组与元基因组的比较.
主要成果:
- 这些分离物,YH-aer221^T和YH-aer222,显示96.6%的16S rRNA基因与Aerococcus suis.相似.
- 遗传学分析将分离物置于与A. suis.相邻的独特子集群中.
- 较低的ANI (71.8-71.7%) 和dDDH (25.6-25.5%) 值证实它们不是A. suis.
- 化学分类学和表型学分析支持了它们独特的身份.
- 基因组分析证实,这些分离物以前没有在元基因组数据库中被识别.
结论:
- 分离物YH-aer221^T和YH-aer222具有不同的遗传学,基因组学和化学分类学特性.
- 这些特征使它们与已知的Aerococcus物种有所区别.
- 这种新型分类被提出为Aerococcus kribbianus sp. 在新的一年里.
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