| Streptococcus caballi |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Streptococcus, Streptococcus
caballi Milinovich et al. 2008. Does not react with streptococcal group A, B, C, D, F or G antisera.
caballi Milinovich et al. 2008. Does not react with streptococcal group A, B, C, D, F or G antisera.
Gram-positive, ovoids, typically occurring in pairs or long chains. Non-motile.
Anaerobic growth for 24 h on sheep blood agar produces flat, shiny, off-white, round,
alpha-hemolytic colonies, 1–2 mm in diameter. Colonies have a tendency to imbed
into sheep blood agar. Facultatively anaerobic.
Grow in the presence of 40% bile and 0.016% potassium tellurite, but not 6.5% NaCl.
alpha-hemolytic colonies, 1–2 mm in diameter. Colonies have a tendency to imbed
into sheep blood agar. Facultatively anaerobic.
Grow in the presence of 40% bile and 0.016% potassium tellurite, but not 6.5% NaCl.
Isolated from the rectum 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 aesculin hydrolysis, Voges-Proskauer reaction, alanyl-phenylalanyl-
proline arylamidase, alpha-galactosidase, beta-glucosidase and leucine
aminopeptidase, acid production from: starch, glycogen, inulin, maltose, melibiose,
methyl beta-D-glucopyranoside, pullulan, raffinose, sucrose, and trehalose.
Negative for arginine hydrolysis, hippurate hydrolysis, N-acetyl-beta-glucosaminidase,
catalase, alkaline phosphatase, beta-galactosidase, beta-glucuronidase, glycyl tryptophan arylamidase, beta-mannosidase,
pyrrolidonyl arylamidase, urease, acid production from: D-arabinose, L-arabinose, cyclodextrin, lactose, mannitol, melezitose, ribose,
sorbitol and tagatose.
proline arylamidase, alpha-galactosidase, beta-glucosidase and leucine
aminopeptidase, acid production from: starch, glycogen, inulin, maltose, melibiose,
methyl beta-D-glucopyranoside, pullulan, raffinose, sucrose, and trehalose.
Negative for arginine hydrolysis, hippurate hydrolysis, N-acetyl-beta-glucosaminidase,
catalase, alkaline phosphatase, beta-galactosidase, beta-glucuronidase, glycyl tryptophan arylamidase, beta-mannosidase,
pyrrolidonyl arylamidase, urease, acid production from: D-arabinose, L-arabinose, cyclodextrin, lactose, mannitol, melezitose, ribose,
sorbitol and tagatose.
(c) Costin Stoica
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