Phylum Firmicutes, Class Bacilli, Order Lactobacillales, Family Streptococcaceae, Genus Streptococcus, Streptococcus henryi
Milinovich et al. 2008. Lancefield group D.
Gram-positive, nonmotile ovoids, typically occurring in pairs or long chains.
Anaerobic growth for 24 h on sheep blood agar produces flat, shiny, off-white, round,
alpha-hemolytic 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.
- 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: glycogen, inulin, lactose, maltose, mannitol, melibiose,
methyl beta-D-glucopyranoside, pullulan, starch, sucrose, and 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, L-arabinose, cyclodextrin, melezitose, raffinose, ribose, sorbitol, and tagatose.
(c) Costin Stoica