<i>Streptococcus salivarius</i>
            and Other Non-hemolytic Streptococci of the Human Throat

Sherman, James M.; Niven, C. F.; Smiley, K. L.

doi:10.1128/jb.45.3.249-263.1943

Cited by 80 publications

(19 citation statements)

References 26 publications

(19 reference statements)

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“…initior" espoused by Colman and Williams (25). S. salivarius was further defined by Sherman et al (111), and Niven et al (88) analyzed the extracellular material that it produced from sucrose and found that it was a levan. On sucrose agar, typical colonies are large and tall and have a soft viscous texture.…”

Section: Identificationmentioning

confidence: 99%

Classification and identification of the viridans streptococci

1989

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This review traces the history of the human, nonhemolytic, or viridans, streptococci and describes improvements in their taxonomy wrought by study of their biochemical profiles and analysis of their nucleic acids. The goal was to define species on the basis of genetic relationships and to describe these species by their phenotypic characteristics so that they can be easily identified. This method has resulted in the division of some species. Streptococcus mutans has been divided into four species, two of which are common in humans. Three more mutans group species are indigenous to animals. Conversely, S. constellatus, S. intermedius, and "S. milleri" have been combined under S. anginosus. S. mitis (or "S. mitior") can be well-defined and includes S. sanguis II. There is genetic heterogeneity within S. sanguis, but the species is usually easy to identify. There is also some heterogeneity in S. bovis, but most human isolates are genetically related. Discussions of the taxonomy of these species are accompanied by descriptions of the characteristics by which these streptococci can be identified. Among these species are potential pathogens which should be suspected in cases of endocarditis and purulent infections of liver, brain, and other tissues.

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Section: Identificationmentioning

confidence: 99%

Classification and identification of the viridans streptococci

1989

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“…However, it was impossible to further assign strains CC5A and CC6 to either group V:A or group V:B of Carlsson as they showed characteristics of both groups; for example, they produced ammonia from arginine, did not ferment inulin, and grew in 0.1% tellurite broth. For Carlsson (7), strains in group V resemble S. mitis of Sherman et al (25). Colman and Williams (9), reviewing the data of Carlsson, consider that group V:A is better allocated to Streptococcus mitior and that group V:B is better allocated to S. sanguis.…”

Section: Fig 3 Gel Double-diffusion Analysis Showing a Reaction Of mentioning

confidence: 99%

Characterization of tufted streptococci isolated from the "corn cob" configuration of human dental plaque

Mouton¹,

Reynolds²,

Genco³

1980

Infect Immun

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Streptococci isolated from "corn cob" configurations of human dental plaque possess a polar fibrillar tuft extending 100 to 150 nm from one pole of the cell. The two strains studied were physiologically related to the Streptococcus sanguis-Streptococcus mitior group and were most similar to Streptococcus mitis ATCC 903. The corn cob streptococci were serologically related to S. sanguis serotype 1. The polar tuft contained at least two antigenically distinct components, one serologically related to the glycerol phosphate backbone of teichoic acid. The other was an electrophoretically slow-moving antigen similar to a component of S. mitis ATCC 903. It is suggested that the corn cob streptococci in vivo adhere to Bacterionema matruchotii by means of the polar tuft.

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“…Except for its lack of type-specific surface antigen it corresponds in all respects tested to the description of Str. salivarius given by Sherman, Niven, and Smiley (5). It is readily identified by the large mucoid colonies it forms owing to synthesis of copious amounts of levan when cultivated on the surface of blood agar plates containing 5 per cent sucrose.…”

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confidence: 99%

Transformation Reactions Between Pneumococcus and Three Strains of Streptococci

Bracco

Krauss

Roe

et al. 1957

The Journal of Experimental Medicine

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Pneumococci were caused to become streptomycin-resistant by D N A extracts of resistant mutants of the 2 strains of streptococci. In addition, resistance to optochin, which occurs naturally in these streptococci, was conferred on pneumococci by exposure to streptococcal extracts. Materials and Methods Strains of Pneumococcus.--II-D39S: an encapsulated strain of pneumococcus Type II.II-R36NC: a colonial variant of the rough strain II-R36. ILR36 was derived originally from strain II-D39S.Strains of Streptococcus.---42 different strains of streptococci were exposed to DNA extracts of streptomycin-resistant (St r) pneumococci. Of these only 2 related strains of viridans streptococd, strains D and N'BSI, were transformed to streptomycin resistance. The following streptococci were not transformed: Streptococcus kemolyticus, Group A, 12 strains; Sir.* This work was supported in part by a grant from the National Institutes of Health, United States Public Health Service.l In this paper the term homologous designates reactions between strains of the same bacterial species (homotransformation); the term hderologous refers to reactions between different species (heterotransformation). A third expression, autologo~ (autotransformation), is used to indicate reactions taking place between representatives of the same strain of a bacterial species.

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Streptococcus salivarius and Other Non-hemolytic Streptococci of the Human Throat

Cited by 80 publications

References 26 publications

Classification and identification of the viridans streptococci

Classification and identification of the viridans streptococci

Characterization of tufted streptococci isolated from the "corn cob" configuration of human dental plaque

Transformation Reactions Between Pneumococcus and Three Strains of Streptococci

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