| Streptococcus halichoeri |
Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Phylum Bacillota (Firmicutes), Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Streptococcus, Streptococcus
halichoeri Lawson et al. 2004.
Lancefield group B.
halichoeri Lawson et al. 2004.
Lancefield group B.
Gram-positive cocci, grouped in pairs and short chains.
Colonies are white, nonhemolytic and 0.5 mm in diameter after 24 h incubation on
sheep blood agar. Growth at 37 ºC. Aerobic, facultatively anaerobic. Can grow on
Trypticase soy agar with 5% sheep blood.
sheep blood agar. Growth at 37 ºC. Aerobic, facultatively anaerobic. Can grow on
Trypticase soy agar with 5% sheep blood.
Isolated from grey seals (Halichoerus grypus).
Unknown
- Paul A. Lawson, Geoffrey Foster, Enevold Falsen, Nick Davison and Matthew D. Collins: Streptococcus halichoeri sp. nov.,
isolated from grey seals (Halichoerus grypus). Int. J. Syst. Evol. Microbiol., 2004, 54, 1753-1756.
Positive results for arginine dihydrolase, alkaline phosphatase, Voges-Proskauer
reaction, acid production from: cyclodextrin, maltose, mannitol, pullulan and ribose.
Negative results for alpha-galactosidase, beta-galactosidase, alpha-glucosidase, beta-glucuronidase, urease, esculin hydrolysis,
hippurate hydrolysis, acid production from: arabinose, glycogen, inulin, mannose, melibiose, melezitose, methyl
beta-D-glucopyranoside, raffinose, sorbitol, starch, sucrose, D-tagatose and trehalose.
Acid production from lactose is variable.
reaction, acid production from: cyclodextrin, maltose, mannitol, pullulan and ribose.
Negative results for alpha-galactosidase, beta-galactosidase, alpha-glucosidase, beta-glucuronidase, urease, esculin hydrolysis,
hippurate hydrolysis, acid production from: arabinose, glycogen, inulin, mannose, melibiose, melezitose, methyl
beta-D-glucopyranoside, raffinose, sorbitol, starch, sucrose, D-tagatose and trehalose.
Acid production from lactose is variable.
(c) Costin Stoica
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