Aix Marseille University, IRD, AP-HM, MEPHII, Marseille, France.
IHU-Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13385, Marseille Cedex 05, France.
Curr Microbiol. 2023 May 16;80(6):211. doi: 10.1007/s00284-023-03301-4.
Bacterial strain Marseille-P3954 was isolated from a stool sample of a 35-year-old male patient living in France. It was a gram-positive, rod-shaped anaerobic, non-motile, and non-spore-forming bacterium. C and C were the major fatty acid, while its genome measured 2,422,126 bp with 60.8 mol% of G+C content. Phylogenetic analysis based on the 16S rRNA gene sequence showed that strain Marseille-P3954 had 85.51% of similarity with Christensenella minuta, its closest related species with standing in nomenclature. As this value is very low compared to the recommended threshold, it suggested that the Marseille-P3954 strain belongs to a new bacterial genus, classified in a new family. On the basis of these genomic, phenotypic, and phylogenetic evidences, we propose that strain Marseille-P3954 should be classified as a new genus and species, Maliibacterium massiliense gen. nov., sp. nov. The type strain of M. massiliense sp. nov. is Marseille-P3954 (CSUR P3954 = CECT 9568).
细菌株马赛 - P3954 是从一名居住在法国的 35 岁男性患者的粪便样本中分离出来的。它是一种革兰氏阳性、杆状、厌氧、非运动、非孢子形成的细菌。C 和 C 是主要的脂肪酸，而其基因组大小为 2,422,126bp，G+C 含量为 60.8mol%。基于 16S rRNA 基因序列的系统发育分析表明，马赛 - P3954 株与 Christensenella minuta 具有 85.51%的相似性，是其最接近的相关物种，具有命名地位。由于与推荐的阈值相比，这个值非常低，这表明马赛 - P3954 菌株属于一个新的细菌属，分类在一个新的科中。基于这些基因组、表型和系统发育证据，我们建议将马赛 - P3954 菌株分类为一个新的属和种，即 Maliibacterium massiliense gen. nov., sp. nov. 新种 Maliibacterium massiliense 的模式菌株是马赛 - P3954（CSUR P3954=CECT 9568）。
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