| Streptococcus peroris |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Streptococcus, Streptococcus
peroris Kawamura et al. 1998.
Member of the 'Streptococcus mitis group'. Lancefield group was not determined.
peroris Kawamura et al. 1998.
Member of the 'Streptococcus mitis group'. Lancefield group was not determined.
Cells are nonsporulating, nonmotile, Gram-positive cocci, grouped in short chains.
Alpha-hemolytic, small (0.3-0.8 mm in diameter) colonies after 48 hour incubation.
Grows at 37 ºC. Facultatively anaerobic. Grows on Trypticase soy agar with 5% sheep
blood.
Grows at 37 ºC. Facultatively anaerobic. Grows on Trypticase soy agar with 5% sheep
blood.
Isolated from human clinical samples - oral cavity (tooth surface) & pharynx.
Undetermined.
- Yoshiaki Kawamura, Xiao-Gang Hou, Yuko Todome, Ferdousi Sultana, Kenji Hirose, Sin-Ei Shu, Takayuki Ezaki & Hisashi
Ohkuni: Streptococcus peroris sp. nov. and Streptococcus infantis sp. nov., new members of the Streptococcus mitis group,
isolated from human clinical specimens. Int. J. Syst. Bacteriol., 1998, 48, 921-927. - Robert A. Whiley and Jeremy M. Hardie, 2009. Genus I. Streptococcus Rosenbach 1884, 22AL. In: (Eds.) P.D. Vos, G. Garrity, D.
Jones, N.R. Krieg, W. Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3:
The Firmicutes, Springer, 655-711. - BacDive in 2025: the core database for prokaryotic strain data. Isabel Schober, Julia Koblitz, Joaquim Sardà Carbasse, Christian
Ebeling, Marvin Leon Schmidt, Adam Podstawka, Rohit Gupta, Vinodh Ilangovan, Javad Chamanara, Jörg Overmann, Lorenz
Christian Reimer. Nucleic Acids Research; database issue 2025.
Positive results for alanyl-phenylalanyl-proline arylamidase, acid production from:
fructose, galactose, glucose, lactose, mannose, maltose and sucrose.
Negative results for alkaline phosphatase, alpha-galactosidase, arginine hydrolysis, catalase, esculin hydrolysis, hippurate
hydrolysis, beta-D-fucosidase, N-acetyl-beta-glucosaminidase, pyrrolidonyl arylamidase, beta-glucosidase, beta-mannosidase,
beta-glucuronidase, glycinetryptophan arylamidase, urease, Voges-Proskauer reaction, acid production from: salicin, dulcitol,
glycerol, inositol, rhamnose, xylose, amygdalin, L-arabinose, D-arabinose, arabitol, arbutin, cyclodextrin, glycogen, inulin, mannitol,
methyl beta-D-glucopyranoside, melibiose, melezitose, pullulan, raffinose, ribose, sorbitol, tagatose and trehalose.
Variable results for alkaline phosphatase and beta-galactosidase.
Streptococcus infantis and Streptococcus peroris differential characters:
fructose, galactose, glucose, lactose, mannose, maltose and sucrose.
Negative results for alkaline phosphatase, alpha-galactosidase, arginine hydrolysis, catalase, esculin hydrolysis, hippurate
hydrolysis, beta-D-fucosidase, N-acetyl-beta-glucosaminidase, pyrrolidonyl arylamidase, beta-glucosidase, beta-mannosidase,
beta-glucuronidase, glycinetryptophan arylamidase, urease, Voges-Proskauer reaction, acid production from: salicin, dulcitol,
glycerol, inositol, rhamnose, xylose, amygdalin, L-arabinose, D-arabinose, arabitol, arbutin, cyclodextrin, glycogen, inulin, mannitol,
methyl beta-D-glucopyranoside, melibiose, melezitose, pullulan, raffinose, ribose, sorbitol, tagatose and trehalose.
Variable results for alkaline phosphatase and beta-galactosidase.
Streptococcus infantis and Streptococcus peroris differential characters:
(c) Costin Stoica
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Legend: + more than 85% positive; - more than 85% negative; v variable (16-84% positive).
