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Isolation and Culture of Adult Epithelial Stem Cells from Human Skin
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红红 Cutis sp. 在线播放 Nov.,从人类表皮中分离出来
Haelim Son1, Wonsik Mun2, Robert J Mitchell2
1Department of Bio Health Science, Changwon National University, Changwon, Gyeongnam 51140, Republic of Korea.
概括
一种新的粉红色素质细菌,Roseomonas cutis sp. 这种细菌. 新型菌株OT10T,被从人类皮肤中鉴定出来. 这项研究详细介绍了其独特的特征和遗传构成,将其确立为Roseomonas属内的独特物种.
科学领域:
- 微生物学 微生物学
- 细菌的分类学 细菌的分类学
- 基因组学就是基因组学.
背景情况:
- *Roseomonas*属包括粉红色素的细菌,其中一些与人体皮肤有关.
- 之前的研究已经确定了各种Roseomonas物种,但该属内的多样性和新性仍然是探索的领域.
研究的目的:
- 描述一种从人皮肤中分离出来的新型细菌.
- 用多相方法确定分离物的分类学位置,包括化学分类学,基因型和表型分析.
- 为了正式提出一个新的物种在Roseomonas*属内.
主要方法:
- 从人类皮肤中分离和培养细菌菌株.
- 现型特征包括格拉姆染色,运动性测试和鞭毛状排列.
- 细胞脂肪酸和子的化学分类学分析.
- 基因组分析,包括16S rRNA基因测序和全基因组测序.
- 遗传学分析和平均核酸标识 (ANI) 和数字DNA-DNA杂交 (dDDH) 值的计算.
主要成果:
- 在5个分离的菌株中,有4个被确定为Roseomonas mucosa*.
- 菌株OT10T表现为格拉姆阴性,氧化酶阳性,运动性,有氧性,棒状形态与lophotrichous鞭毛.
- 化学分类学数据显示,主要的脂肪酸是C18:1ω7c/C18:1ω6c和C18:1 2OH,其中Q-10是唯一的.
- 基因组分析显示G+C含量为72.6mol%和与Roseomonas gilardii和R. mucosa有密切的遗传关系.
- 低的ANI和dDDH值使OT10T菌株与其最近的亲属有所区分,支持其被归类为新物种.
结论:
- 菌株OT10T代表了一种新的物种, *Roseomonas cutis* sp. 在新的一年里.
- * 红花切割* sp. 在这里. nov.被提议作为 *Roseomonas* 属的新成员,从人类皮肤上分离出来.
- 这些发现有助于理解人类皮肤上的细菌多样性和Roseomonas*属的分类学.
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