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1 Marmara University, Turkey;
2 VA Medical Center West Los Angeles
3 E-mail: carlsonph{at}aol.com
Two strains of previously unknown Gram-positive, anaerobic, coccus-shaped bacteria from human wound specimens were characterized using phenotypic and molecular taxonomic methods. Comparative 16S rRNA gene sequencing studies and distinguishable biochemical characteristics, demonstrated that these two unknown strains, WAL 1855C and WAL 2038E, are genotypically homogeneous and constitute a new lineage within Clostridium cluster XIII. There was a sequence divergence of 13 to 14% between the novel strains and species of other related genera, Parvimonas micra, Finegoldia magna and species of Helcococcus. Based on the phenotypic and phylogenetic findings, a novel genus and species, Murdochiella asaccharolytica gen. nov., sp. nov. is proposed, for which WAL 1855CT (=ATCC BAA-1631T; =CCUG 55976T) is the type strain.
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