A lactic acid bacteria isolated from pig faeces was characterized using a polyphasic approach. Cells of the strain were Gram-stain-positive, rod-shaped and facultative anaerobic. Phylogenetic analysis of 16S rRNA gene sequence indicated that the isolate belonged to the genus ; however, the similarity to other homologues within the genus was <98 %. Analysis of housekeeping gene sequences ( and ) revealed that the strain formed a sub-cluster adjacent to and . The main fatty acids of the strain is the Cω9 and C. The G+C content of the genomic DNA was 62.8 mol %. The major polar lipids were diphosphatidylglycerol, phosphatidylglycerol, aminophospholipids and phospholipids. The cell-wall peptidoglycan did not contain -diaminopimelic acid. Thus, YH-lac21 (=KCTC 21185=JCM 34953) represents a novel species. The name sp. nov. is proposed.
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