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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Lactobacillales => Streptococcaceae => Streptococcus => Streptococcus thoraltensis Devriese et al. 1997.
Gram positive cocci, grouped in short chains. Non-motile.
Colonies on sheep blood agar are small, 1 mm in diameter, opaque and produce
alpha-hemolysis.
Optimum growth at 37 °C. Aerobic, facultatively anaerobic. Growth is enhanced by
incubation in a 5% C02 -supplemented atmosphere. No growth at 42 °C. Media:
Trypticase soy agar with 5% sheep blood, Brain heart infusion agar or broth.
alpha-hemolysis.
Optimum growth at 37 °C. Aerobic, facultatively anaerobic. Growth is enhanced by
incubation in a 5% C02 -supplemented atmosphere. No growth at 42 °C. Media:
Trypticase soy agar with 5% sheep blood, Brain heart infusion agar or broth.
Isolated from pigs (vaginal fluids & intestine).
Unknown. Strains isolated from diseased or dead pigs, but pathogenicity was no proved.
- Devriese LA, et al. Streptococcus hyovaginalis sp. nov. and Streptococcus thoraltensis sp. nov., from the genital tract of sows.
Int. J. Syst. Bacteriol. 47: 1073-1077, 1997.
Voges-Proskauer, leucine arylamidase, alanine phenylalanine proline arylamidase,
beta-glucuronidase, beta-glucosidase & hydrolysis of arginine are positive.
Acid is produced from ribose, galactose, glucose, fructose, mannose, mannitol,
N-acetylglucosamine, arbutin, salicin, cellobiose, lactose, maltose, saccharose,
trehalose, gentiobiose, methyl-beta-D-glucopyranoside, L-arabinose, inulin, starch & pullulan.
Pyrrolidonyl-arylamidase, beta-mannosidase, beta-galactosidase, urease et N-acetyl-beta-glucosaminidase are negative
Alpha-galactosidase, hippurate, alkaline phosphatase, glycyltryptophan arylamidase, D-xylose, amygdalin & melibiose are variable.
beta-glucuronidase, beta-glucosidase & hydrolysis of arginine are positive.
Acid is produced from ribose, galactose, glucose, fructose, mannose, mannitol,
N-acetylglucosamine, arbutin, salicin, cellobiose, lactose, maltose, saccharose,
trehalose, gentiobiose, methyl-beta-D-glucopyranoside, L-arabinose, inulin, starch & pullulan.
Pyrrolidonyl-arylamidase, beta-mannosidase, beta-galactosidase, urease et N-acetyl-beta-glucosaminidase are negative
Alpha-galactosidase, hippurate, alkaline phosphatase, glycyltryptophan arylamidase, D-xylose, amygdalin & melibiose are variable.
(c) Costin Stoica
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