1887

Abstract

Two Gram-positive, anaerobic, non-spore-forming and coccoid or oval-shaped bacterial strains, namely, DN0138 and DN0266, were isolated from faecal samples of healthy Japanese people. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain DN0138 clustered with a species of the genus and was closely related to JCM 1471, JCM 1395, KB1 and ‘’ Marseille-P2377, with sequence similarities of 98.6, 98.5, 98.8 and 98.2 %, respectively. The average nucleotide identity values were 85.3 % for JCM 1471, 85.0 % for NCTC 11035, 84.3 % for KB1 and 84.3 % for ‘’ Marseille-P2377. The major end products of glucose metabolism were acetic acid, lactic acid and succinic acid. The genome length of strain DN0138 was 6 247 046 bp with 46.7 mol% G+C content of genome sequence. Based on their phenotypic, cellular fatty acid and phylogenetic characteristics, the three isolates represent a novel species within the genus , for which the name sp. nov. is proposed. The type strain is DN0138 (=NBRC 113351=BCRC 81349).

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2023-11-16
2024-07-13
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