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眼的血种子 sp. 血种子 sp. Nov.,从人类血液中分离出来

Hui-Jin Yu¹, Yun Young Cho², Jayoung Paek³

¹Department of Laboratory Medicine, Seoul Medical Center, Seoul, Republic of Korea.

|October 31, 2025

概括

一种新型的细菌,Lacrimispora sanguinis sp. 这是一种新型的细菌. Nov.,是从人类血液中鉴定出来的. 这种强制性无氧性,阳性细菌表现出独特的遗传和化学分类学特征,包括对克林达米辛的耐药性.

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:

人类血液分离物可以容纳新的细菌物种.
了解细菌分类学对于诊断和治疗至关重要.
拉克里米斯波拉属包括无氧,格拉姆阳性细菌.

研究的目的:

为了描述一种新型细菌菌株,HJ-01T,从人类血液中分离出来.
确定HJ-01T菌株在Lacrimispora属内的分类地位.
为HJ-01T菌株提出一种新的物种名称.

主要方法:

16S rRNA基因测序用于遗传学分析.
平均核酸标识 (ANI) 和数字DNA-DNA杂交 (dDDH) 用于基因组比较.
遗传学分析,化学分类学分析 (脂肪酸,细胞壁) 和发酵产品分析.

主要成果:

菌株HJ-01T是一种强制性无氧性,阳性杆菌,与Lacrimispora celerecrescens密切相关 (99.3%的16SrRNA相似性).
相关类型菌株的ANI (75.391.4%) 和dDDH (19.844.5%) 值表明一种新物种.
菌株HJ-01T与L. celerecrescens菌株DSM 105336和MCM B-936具有较高的克林达米辛耐药性,与cfr (C) 基因相关.
遗传学分析显示HJ-01T与L. celerecrescens菌株相邻.

结论:

菌株HJ-01T代表了一个新物种,Lacrimispora sanguinis sp. 在新的一年里.
提议将L. celerecrescens菌株DSM 105336和MCM B-936重新分类为L. sanguinis. 这两种菌株被重新分类为L. sanguinis.
这些发现有助于对Lacrimispora属的分类学,并突出了抗生素耐药性的机制.

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