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Int J Syst Evol Microbiol. 2016 Feb;66(2):951-956. doi: 10.1099/ijsem.0.000817. Epub 2015 Dec 4.

Sellimonas intestinalis gen. nov., sp. nov., isolated from human faeces.

Seo B1,2, Yoo JE1, Lee YM3, Ko G1,4.

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1​Center for Human and Environmental Microbiome,Graduate School of Public Health, Seoul National University, Seoul, Republic ofKorea.
2​School of Biological Sciences,Seoul National University, Seoul, Republic ofKorea.
3​Division of Polar Life Sciences,Korea Polar Research Institute, 26 Songdomirae-ro, Yeonsu-gu, Incheon 406-840, Republic ofKorea.
4​N-Bio,Seoul National University, Seoul, Republic ofKorea.


A Gram-stain-positive and obligately anaerobic bacterial strain, BR72T, forming ivory yellow colonies was isolated from a faecal sample of a healthy Korean woman. 16S rRNA gene sequence analysis indicated that strain BR72T belongs to Clostridium cluster XIVa and represents a distinct phyletic line within the family Lachnospiraceae. The most closely related strains were Clostridium nexile DSM 1787T (94.1 % 16S rRNA gene sequence similarity), Coprococcus comes ATCC 27758T (93.5 %), Ruminococcus torques ATCC 27756T (93.5 %), Ruminococcus lactaris ATCC 29176T (93.5 %), Clostridium aerotolerans DSM 5434T (93.1 %) and Eubacterium fissicatena DSM 3598T (92.9 %). The DNA G+C content of strain BR72T based on its genome sequence was 45.3 mol%. The major cellular fatty acids were C16 : 0, C14 : 0, and iso-C17 : 1 I and/or anteiso-C17 : 1 B. Acetic acid was produced from glucose fermentation. Other physiological and biochemical comparisons allowed the phenotypic differentiation of strain BR72T from the members of the family Lachnospiraceae. Based on the phylogenetic and phenotypic findings, this strain is considered to represent a novel species of a new genus belonging to the family Lachnospiraceae and the name Sellimonas intestinalis gen. nov., sp. nov. is proposed. The type strain of Sellimonas intestinalis is BR72T ( = KCTC 15479T = JCM 30749T).


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