Alou Maryam Tidjani, Rathored Jaishriram, Michelle Caroline, Dubourg Gregory, Andrieu Claudia, Armstrong Nicholas, Sokhna Cheikh, Diallo Aldiouma, Raoult Didier, Fournier Pierre-Edouard
URMITE, Aix Marseille Université, UM63, CNRS 7278, IRD 198, INSERM 1095, IHU - Méditerranée Infection, 19-21 Boulevard Jean Moulin, 13005, Marseille, France.
Unité de Recherche sur les Maladies Infectieuses et Tropicales Emergentes IRD 198, CNRS 7278, Aix-Marseille Université, Marseille, France.
Antonie Van Leeuwenhoek. 2017 Jun;110(6):737-750. doi: 10.1007/s10482-017-0843-5. Epub 2017 Feb 11.
A novel strain, Mt12 (=CSUR P1907 = DSM 100590), was isolated from the fecal sample of a 7-month-old girl from Senegal afflicted with severe acute malnutrition. This bacterium is a strictly anaerobic, spore-forming Gram-stain positive bacillus. The major cellular fatty acid was identified as tetradecanoic acid. Its 16S rRNA gene sequence exhibited 94.9% similarity with that of Crassaminicella profunda strain Ra1766H, currently the closest species with a validly published name. The draft genome of strain Mt12 is 3,497,275-bp long with a 30.45% of G+C content. 3397 genes were predicted, including 3268 protein-coding genes and 129 RNAs, including eight 16S rRNAs. Genomic comparison with closely related species with an available genome showed a lower quantitative genomic content. The phylogenetic analysis alongside the dDDH values under 30% and phenotypic characteristics suggest that strain Mt12 represents a new genus within the family Clostridiaceae, for which the name Inediibacterium massiliense gen. nov., sp. nov. is proposed.
从一名患有严重急性营养不良的塞内加尔7个月大女童的粪便样本中分离出一种新型菌株Mt12(=CSUR P1907 = DSM 100590)。该细菌是一种严格厌氧、形成芽孢的革兰氏染色阳性杆菌。主要细胞脂肪酸被鉴定为十四烷酸。其16S rRNA基因序列与目前有效发表名称的最接近物种深部厚壁菌Crassaminicella profunda菌株Ra1766H的序列相似度为94.9%。菌株Mt12的基因组草图长度为3,497,275 bp,G+C含量为30.45%。预测有3397个基因,包括3268个蛋白质编码基因和129个RNA,其中包括8个16S rRNA。与具有可用基因组的密切相关物种进行基因组比较,结果显示基因组含量较低。系统发育分析以及低于30%的dDDH值和表型特征表明,菌株Mt12代表梭菌科中的一个新属,为此提出新属名Massiliense不食菌属(Inediibacterium),新种名Massiliense不食菌(Inediibacterium massiliense)。