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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Lactobacillales => Streptococcaceae => Streptococcus => Streptococcus caballi Milinovich et al. 2008.
Lancefield group D.
Lancefield group D.
Gram-positive, non-motile ovoids, typically occurring in pairs or long chains.
Anaerobic growth for 24 h on sheep blood agar produces flat, shiny, off-white, round,
alpha-haemolytic colonies, 2 mm in diameter. Facultatively anaerobic.
Grow in the presence of 40% bile and 0.016% potassium tellurite, but not 6.5% NaCl.
alpha-haemolytic colonies, 2 mm in diameter. Facultatively anaerobic.
Grow in the presence of 40% bile and 0.016% potassium tellurite, but not 6.5% NaCl.
Isolated from the caecum of a horse with oligofructose-induced laminitis.
Unknown.
- Milinovich G.J., Burell P.C., Pollitt C.C., Bouvet A. & Trott D.J.: Streptococcus henryi sp. nov. and Streptococcus caballi sp. nov.,
isolated from the hindgut of horses with oligofructose-induced laminitis. Int. J. Syst. Evol. Microbiol., 2008, 58, 262-266.
Positive for alpha-galactosidase, beta-galactosidase, beta-glucosidase, leucine
aminopeptidase, alanyl-phenylalanylproline arylamidase, esculin hydrolysis, acid
production from: starch, glycogen, inulin, lactose, maltose, mannitol, melibiose,
methyl beta-D-glucopyranoside, pullulan, sucrose & trehalose
Negative for catalase, Voges–Proskauer, arginine hydrolysis, hippurate hydrolysis,
N-acetyl-beta-glucosaminidase, alkaline phosphatase, beta-glucuronidase, glycyl
tryptophan arylamidase, beta-mannosidase, pyrrolidonyl arylamidase, urease, acid production from: D-arabinose, Larabinose,
cyclodextrin, melezitose, raffinose, ribose, sorbitol & tagatose.
aminopeptidase, alanyl-phenylalanylproline arylamidase, esculin hydrolysis, acid
production from: starch, glycogen, inulin, lactose, maltose, mannitol, melibiose,
methyl beta-D-glucopyranoside, pullulan, sucrose & trehalose
Negative for catalase, Voges–Proskauer, arginine hydrolysis, hippurate hydrolysis,
N-acetyl-beta-glucosaminidase, alkaline phosphatase, beta-glucuronidase, glycyl
tryptophan arylamidase, beta-mannosidase, pyrrolidonyl arylamidase, urease, acid production from: D-arabinose, Larabinose,
cyclodextrin, melezitose, raffinose, ribose, sorbitol & tagatose.
(c) Costin Stoica
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