Abstract
A polyphasic taxonomic study using morphological, biochemical, chemotaxonomic and molecular genetic methods was performed on six strains of unknown Gram-positive, nonspore-forming, facultative anaerobic coccus-shaped bacteria isolated from a swine-manure storage pit. On the basis of the 16S rRNA, RNA polymerase α-subunit (rpoA) and 60 kDa chaperonin (cpn60) gene sequence analyses, it was shown that all the isolates were enterococci but formed two separate lines of descent. Pairwise 16S rRNA gene sequence comparisons demonstrated that the two novel organisms were most closely related to each other (97.9 %) and to Enterococcus aquimarinus (97.8 %). Both organisms contained major amounts of C16:0, C16:1 ω7c, C16:1 ω7c, and C18:1 ω7c/12t/9t as the major cellular fatty acids. Based on biochemical, chemotaxonomic and phylogenetic evidence, the names Enterococcus lemanii sp. nov. (type strain PC32T = CCUG 61260T = NRRL B-59661T) and Enterococcus eurekensis sp. nov. (type strain PC4BT = CCUG 61259T = NRRL B-59662T) are proposed for these hitherto undescribed species.
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Acknowledgments
The authors wish to acknowledge Janet Hill, Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Canada for assistance with the analysis of the cpn60 gene sequences. The authors also wish to acknowledge the valuable technical assistance by Rhonda Zeltwanger.
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Cotta, M.A., Whitehead, T.R., Falsen, E. et al. Two novel species Enterococcus lemanii sp. nov. and Enterococcus eurekensis sp. nov., isolated from a swine-manure storage pit. Antonie van Leeuwenhoek 103, 89–98 (2013). https://doi.org/10.1007/s10482-012-9789-9
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DOI: https://doi.org/10.1007/s10482-012-9789-9