1887

Abstract

A strain of obligately anaerobically growing Gram-positive cocci was isolated from a human genito-urinary sample and characterized by a polyphasic approach. Analyses of 16S rRNA gene and whole-genome sequences of this strain S3374 indicated that it belonged to the genus . Overall genome relatedness index calculations confirmed it to be phylogenetically distinct from (NCTC 11808) as its most closely related species with standing in nomenclature, with average nucleotide identity and genome-to-genome distance values of 85.8 and 30.2 %, respectively. Biochemically, strain S3374 was strongly proteolytic and can be differentiated from (DSM 20468) by absence of phosphatase activity. The DNA G+C content of strain S3374 was 28.6 mol%. Based on the phenotypical, biochemical and genetic findings, strain S3374 is considered to represent a novel species within the genus , for which the name sp. nov. is proposed. The type strain is S3374 (=DSM 110786=CCOS 1934=CCUG 74294). This description adds strain S3374 as a second species to the genus which has so far been monotypic. While the type strain of this genus, , has a long standing in nomenclature and its role in human health and disease has been studied to some extent, this description of the proposed novel species represented by strain S3374 will allow microbiologists worldwide to identify isolates of sp. nov., a prerequisite for further investigation of its relevance in the clinical context and beyond.

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2021-12-08
2022-01-27
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