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Streptococcus castoreus sp nov., isolated from a beaver (Castor fiber)

Lawson, P.A., Foster, G., Falsen, E., Markopoulos, S.J. and Collins, M.D. (2005) Streptococcus castoreus sp nov., isolated from a beaver (Castor fiber). International Journal of Systematic and Evolutionary Microbiology, 55 (2). pp. 843-846. ISSN 1466-5026

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To link to this item DOI: 10.1099/ijs.0.63433-0

Abstract/Summary

A previously undescribed, Gram-positive, catalase-negative, Streptococcus-like organism originating from a European beaver (Castor fiber) was subjected to a taxonomic study. The organism displayed beta-haemolytic activity and gave a positive reaction with Lancefield group A antisera. Based on the results of biochemical testing, the organism was tentatively identified as a member of the genus Streptococcus, but it did not correspond phenotypically to any recognized species of this genus. Comparative 16S rRNA gene sequencing studies confirmed this assignment, with the bacterium forming a hitherto unknown subline within the genus. Sequence divergence values of greater than 3% from other reference streptococcal species, however, demonstrated that the unidentified coccus-shaped organism represents a hitherto unknown species. Based on phenotypic and molecular phylogenetic evidence, it is therefore proposed that the unknown organism from a beaver be classified as a novel species, Streptococcus castoreus sp. nov. The type strain is M605815/03/2(T) (=CCUG 48115(T) = CIP 108205(T)).

Item Type:Article
Refereed:Yes
Divisions:Faculty of Life Sciences > School of Chemistry, Food and Pharmacy > Department of Food and Nutritional Sciences
ID Code:13226
Uncontrolled Keywords:CATTLE

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