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Taxonomy
Morphology
Growth conditions
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Lactobacillales => Streptococcaceae => Streptococcus => Streptococcus gallinaceus Collins et al. 2002.
Lancefield group D (sometimes non-groupable).
Lancefield group D (sometimes non-groupable).
Gram-positive cocci, grouped in pairs and short chains.
Small (0.5 mm in diameter), grey alpha-haemolytic colonies on sheep blood agar after overnight incubation at 37 °C in 5% CO2.
Small (0.5 mm in diameter), grey alpha-haemolytic colonies on sheep blood agar after overnight incubation at 37 °C in 5% CO2.
Growth at 37 °C. Aerobic, facultatively anaerobic. Growth on:
Trypticase soy agar with 5% sheep blood.
Brain heart infusion agar or broth.
Trypticase soy agar with 5% sheep blood.
Brain heart infusion agar or broth.
Isolated from broiler chikens with septicaemia. Human clinical isolate reported.
Septicaemia in chickens. 1 report of bacteremia in abattoir worker.
Experimental infection: endocarditis, splenomegaly & hepatomegaly in chickens.
Experimental infection: endocarditis, splenomegaly & hepatomegaly in chickens.
- Matthew D. Collins, Roger A. Hutson, Enevold Falsen, Elisabeth Inganas and Magne Bisgaard.: Streptococcus gallinaceus sp.
nov., from chickens. Int. J. Syst. Evol. Microbiol., 2002, 52, 1161-1164. - Michelle N. D. Balm, Han T. Truong, Anwar S. Choudhary, Geoffrey M. Robinson & Timothy K. Blackmore: Streptococcus
gallinaceus bacteraemia in an abattoir worker presenting with a febrile illness. Journal of Medical Microbiology (2006), 55,
957–959. - Chadfield, M. S., Bojesen, A. M., Christensen, J. P., Juul-Hansen, J., Nielsen, S. Saxmose and Bisgaard, M. (2005)
'Reproduction of sepsis and endocarditis by experimental infection of chickens with Streptococcus gallinaceus and
Enterococcus hirae',Avian Pathology,34:3,238 - 247.
Acid is produced from d-glucose, lactose, maltose, mannitol, melibiose, methyl
beta-D-glucopyranoside, pullulan, D-raffinose, D-ribose, trehalose & sucrose.
Acid is not produced from D-arabitol, L-arabinose, cyclodextrin, glycogen, melezitose,
sorbitol, D-tagatose & D-xylose.
Alkaline phosphatase, beta-glucuronidase, beta-mannosidase, pyroglutamic acid
arylamidase, urease, gelatin hydrolysis, hippurate hydrolysis, Voges-Proskauer =
neagtive. Nitrates are not reduced.
Arginine dihydrolase, alpha-galactosidase, beta-galactosidase, alpha-glucosidase &
beta-glucosidase = positive.
beta-D-glucopyranoside, pullulan, D-raffinose, D-ribose, trehalose & sucrose.
Acid is not produced from D-arabitol, L-arabinose, cyclodextrin, glycogen, melezitose,
sorbitol, D-tagatose & D-xylose.
Alkaline phosphatase, beta-glucuronidase, beta-mannosidase, pyroglutamic acid
arylamidase, urease, gelatin hydrolysis, hippurate hydrolysis, Voges-Proskauer =
neagtive. Nitrates are not reduced.
Arginine dihydrolase, alpha-galactosidase, beta-galactosidase, alpha-glucosidase &
beta-glucosidase = positive.
(c) Costin Stoica
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