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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Lactobacillales => Streptococcaceae => Streptococcus => Streptococcus vestibularis Whiley and Hardie 1988.
Cells are Gram-positive, 1 um in diameter, grouped in chains, alpha-haemolytic on
horse blood agar. Non-motile. Spores are not produced.
horse blood agar. Non-motile. Spores are not produced.
1 to 3 mm in diameter colonies, white, convex and glossy with entire edges.. Growth
at 37 °C. No growth at 10 or 45 °C. Facultatively anaerobic. No growth in the presence
of 4% NaCl, or in the presence of 0.0004% (wt/vol) crystal violet. Most strains grow in
the presence of 10% (wt/vol) bile but not in the presence of 40% (wt/vol) bile.
Media: Trypticase soy agar with 5% sheep blood, Brain heart infusion agar or broth,
Mitis salivarius agar, TYC agar.
at 37 °C. No growth at 10 or 45 °C. Facultatively anaerobic. No growth in the presence
of 4% NaCl, or in the presence of 0.0004% (wt/vol) crystal violet. Most strains grow in
the presence of 10% (wt/vol) bile but not in the presence of 40% (wt/vol) bile.
Media: Trypticase soy agar with 5% sheep blood, Brain heart infusion agar or broth,
Mitis salivarius agar, TYC agar.
Isolated from human oral cavity (vestibule of the mouth).
Rarely a human pathogen. May produce endocarditis of the prosthetic valve, dental infections, bacteremia or septicemia in imuno
supressed organisms.
supressed organisms.
- Whiley R.A. & Hardie J.M.: Streptococcus vestibularis sp. nov. from the human oral cavity. Int. J. Syst. Bacteriol., 1988, 38, 335-339.
- A. Dilek Simsek, Siren Sezer, Nurhan F. Ozdemir & Haberal Mehmet: Streptococcus vestibularis bacteremia following dental
extraction in a patient on long-term hemodialysis: a case report. NDT Plus 2008 1(4):276-277. - J. G.Holt et al., 1994. Bergey’s Manual of Determinative Bacteriology, 9-edition, Williams & Wilkins.
Acid produced from arbutin, fructose, galactose, glucose, lactose, maltose, mannose,
salicin, N-acetylglucosamine and sucrose. Urease and hydrogen peroxide are
produced. Voges-Proskauer test positive, hydrolyze esculin and starch.
Acid not produced from adonitol, arabinose, dextrin, dulcitol, fucose, glycerol, glycogen, inositol, inulin, mannitol, melezitose,
melibiose, raffinose, ribitol, ribose, sorbitol, starch, or xylose.
salicin, N-acetylglucosamine and sucrose. Urease and hydrogen peroxide are
produced. Voges-Proskauer test positive, hydrolyze esculin and starch.
Acid not produced from adonitol, arabinose, dextrin, dulcitol, fucose, glycerol, glycogen, inositol, inulin, mannitol, melezitose,
melibiose, raffinose, ribitol, ribose, sorbitol, starch, or xylose.
(c) Costin Stoica
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