从人类肠道微生物群中高通量单细胞分离Bifidobacterium菌株
Lam Hai Ha1, Yue Yuan On1, Clarice Pohan1
1Genome Institute of Singapore (GIS), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore.
Microbiology spectrum
|December 30, 2025
概括
使用单细胞分发的新型高吞吐量工作流加速了各种Bifidobacterium肠道细菌的分离. 这种方法有效地恢复了新型菌株,推动了微生物组研究和功能研究.
科学领域:
- 微生物学 微生物学
- 基因组学就是基因组学.
- 生物信息学是一种生物信息学.
背景情况:
- 双杆菌物种是关键的开始性肠道细菌,具有重要的健康作用.
- 传统的文化学方法来隔离Bifidobacterium菌株是劳动密集型的,容易产生偏见.
- 转基因组学研究显示,在个体内有相当大的Bifidobacterium菌株多样性.
研究的目的:
- 评估一个高通量单细胞分发工作流程 (B.SIGHT) 来从便样本中分离多种Bifidobacterium菌株.
- 为了优化培养条件,有效地隔离Bifidobacterium.
- 通过全基因组测序来描述孤立的Bifidobacterium菌株的多样性.
主要方法:
- 使用B.SIGHT单细胞分发系统进行高通量隔离.
- 优化的选择介质 (Bifidus选择介质与mupirocin) 和预化时间.
- 在96个分离物种上进行了全基因组测序,以评估物种和菌株的多样性.
- 与公开的基因组数据库比较新型分离物.
主要成果:
- 实现高单细胞分发频率 (>88%) 和保存物种多样性.
- 从五个便样本中成功分离出622个可活的Bifidobacterium分离物 (>98%纯度).
- 全基因组测序确定了六种具有显著的人际和人际菌株多样性的Bifidobacterium物种.
- 与公共数据库相比,超过66%的测序分离物是新鲜的.
结论:
- B.SIGHT的工作流显著加快了多样化和新型Bifidobacterium菌株的恢复.
- 这种高通量文化经济学方法补充了元基因组学,使孤立级别的功能研究成为可能.
- 该方法是可通用和可扩展的,用于从复杂社区中分离其他微生物群体.
相关概念视频
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