Abstract
One hundred reference strains representing all species belonging to the different phylogenetic lineages of the viridans streptococci were examined by means of one-dimensional whole-organism protein electrophoresis. For most of the species examined, multiple strains characterized by DNA-DNA hybridization were included and, wherever described, representatives of different biochemical variants were analysed. Most species were clearly differentiated. The data support the viewpoint that members of the Streptococcus anginosus group constitute a single species and indicate that Streptococcus mitis biovar 2 is a heterogeneous taxon comprising strains from several streptococcal species.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Bacterial Proteins / analysis
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Classification
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Electrophoresis / standards
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Genetic Heterogeneity*
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RNA, Bacterial / analysis
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RNA, Ribosomal / analysis
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Reproducibility of Results
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Streptococcus / chemistry*
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Streptococcus / classification
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Streptococcus / genetics*
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Streptococcus mutans / chemistry
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Streptococcus mutans / classification
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Streptococcus mutans / genetics
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Streptococcus oralis / chemistry
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Streptococcus oralis / classification
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Streptococcus oralis / genetics
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Streptococcus sanguis / chemistry
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Streptococcus sanguis / classification
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Streptococcus sanguis / genetics
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Streptococcus sobrinus / chemistry
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Streptococcus sobrinus / classification
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Streptococcus sobrinus / genetics
Substances
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Bacterial Proteins
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RNA, Bacterial
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RNA, Ribosomal