葡萄球菌 (Staphylococcus hsinchuensis) sp. sp. 已经成为一种常见的疾病. nov. 从豆乳中分离出来的
Yu-Ting Wang1, Yu-Chun Lin2,3, Yi-Huei Hsieh2
1Division of Research and Analysis, Food and Drug Administration, Ministry of Health and Welfare, Taipei 115021, Taiwan.
Pathogens (Basel, Switzerland)
|April 26, 2024
概括
一种新的凝血酶阴性葡萄球菌物种,葡萄球菌hsinchuensis sp. (H164T),是从豆奶中鉴定出来的. 这种新型细菌与其最近的亲属不同,基于遗传和生化分析.
科学领域:
- 微生物学 微生物学
- 细菌学 细菌学是一门学科.
- 纳税学是一种分类学.
背景情况:
- 凝聚酶负型葡萄球菌是无处不在的细菌,具有不同的生态.
- 准确识别和分类细菌物种对于了解微生物多样性和潜在影响至关重要.
研究的目的:
- 从大豆牛奶中分离出来的一种新型凝血酶阴性葡萄球菌菌株的特征.
- 确定该新型菌株在Staphylococcus属中的分类地位.
主要方法:
- 进行比较的16S rRNA基因序列分析.
- 多部位序列分析 (MLSA) 和家族基因组分析.
- 确定平均核酸标识 (ANI) 和数字DNA-DNA杂交 (dDDH).
- 生物化学试验包括基质发酵和酶活性测定.
- 细胞脂肪酸组成和menaquinone概况的分析.
主要成果:
- 新型菌株H164T属于葡萄球菌属.
- 遗传学分析表明,它们与 Staphylococcus gallinarum,S. nepalensis,S. cohnii 和 S. urealyuticus 有着密切的相关性.
- ANI (<95%) 和dDDH (<70%) 值证实H164T是一种独立的物种.
- 发酵概况 (d-果糖,d-马尔托斯,d-三糖,d-曼尼托尔) 和酶活动 (α-葡萄糖酶,性酸酶) 将H164T与相关物种区分开来.
- 观察到明显的细胞脂肪酸 (C15:0 iso,C15:0 anteiso) 和menaquinone (MK-7,MK-8) 的特征.
结论:
- 菌株H164T代表了Staphylococcus属中的一种新物种.
- 这种新物种的建议名称是Staphylococcus hsinchuensis sp. 这种新物种的建议名称是Staphylococcus hsinchuensis sp. 在新的一年里.
- 类型菌株是H164T (=BCRC 81404T=NBRC 116174T) 的.
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