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Faecalibacterium langellae sp. 这种细菌的种类是什么? Nov. 从人类便中分离出来
Adeline Ang Li Xuan1, Véronique Robert2, Atsushi Hisatomi3
1Department of Nutritional Science and Food Safety, Faculty of Applied Bioscience, Tokyo University of Agriculture, Tokyo, Japan.
概括
在分类学上分析了两种肠道细菌菌株. 一个菌株被确定为Faecalibacterium taiwanense,而另一个代表了一种新物种,Faecalibacterium langellae.
科学领域:
- 微生物学 微生物学
- 肠道微生物组研究研究
- 细菌的分类学 细菌的分类学
背景情况:
- *Faecalibacterium*属包括人类肠道中关键的酸盐生产细菌.
- 这些细菌被认为是健康的肠道微生物群的潜在生物标志物,这是由于有益的代谢物生产和减少疾病的丰富性.
研究的目的:
- 为了对两个Faecalibacterium菌株进行分类学分析,CNCM I-4540和CNCM I-4541.
- 为了确定这些菌株在"Faecalibacterium"属内的准确分类.
主要方法:
- 使用16S rRNA和*rpoA*基因序列进行了家族遗传学分析.
- 核心基因的遗传树结构.
- 平均核酸标识 (ANI) 和数字DNA-DNA杂交 (dDDH) 的计算.
主要成果:
- 遗传学分析证实,这两种菌株都属于"Faecalibacterium"属.
- 菌株 CNCM I-4540 根据 ANI (96.7%) 和 dDDH (74.3%) 的值,与 * F. taiwanense * HLW78T相比,被确定为 * Faecalibacterium taiwanense.
- 菌株CNCM I-4541不符合任何已知的*Faecalibacterium*物种的标准,表明它代表了一种新物种.
结论:
- 菌株 CNCM I-4540 在分类学上被归类为 *Faecalibacterium taiwanense*.
- 菌株CNCM I-4541被提议作为一个新物种, *Faecalibacterium langellae* sp. 新型 (类型菌株CNCM I-4541T).
- 这项研究完善了重要的 *Faecalibacterium* 属内的分类学.
关键词:
16S rRNA 基因是16S 的基因.便细菌 (Faecalibacterium langellae) 已经成为一个常见的病菌.产生酸盐的细菌产生酸盐.人的肠道 人的肠道rpoAA 的时间.分类学 分类学.更多相关视频
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