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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Lactobacillales => Streptococcaceae => Streptococcus => Streptococcus porcinus Collins et al. 1985.
Lancefield group E, P, U & V.
Lancefield group E, P, U & V.
Gram positive cocci, grouped in short chains, non-motile.
Beta - haemolytic, small, regular, non-pigmented colonies. CAMP test positive.Growth
at 37.0 °C, variable growth at 10 or 45 °C.
Require complex media (Trypticase soy agar with defibrinated sheep blood), growth
is favored by CO2 presence.
at 37.0 °C, variable growth at 10 or 45 °C.
Require complex media (Trypticase soy agar with defibrinated sheep blood), growth
is favored by CO2 presence.
Isolated mainly from the upper respiratory tract of swine (tonsils, pharynx, nose), rarely from vaginal secretions or sperm. Few strains
isolated from other species. Some female genitourinary tract isolates from humans.
isolated from other species. Some female genitourinary tract isolates from humans.
Produce streptococcal lymphadenitis of swine (jowl abscesses, cervical abscesses, feeder boils or swine strangles). Rarely may
cause septicemia, endocarditis, pericarditis, meningitis, encephalitis, pneumonia, tracheitis, otitis media, enteritis, arthritis, abortus
mammitis. Uncertain pathogenicity to other animals or to humans - although was isolated from genitourinary tract of female patients,
some with delivery problems.
cause septicemia, endocarditis, pericarditis, meningitis, encephalitis, pneumonia, tracheitis, otitis media, enteritis, arthritis, abortus
mammitis. Uncertain pathogenicity to other animals or to humans - although was isolated from genitourinary tract of female patients,
some with delivery problems.
- Bergey’s Manual of Determinative Bacteriology, 9th ed., 1994.
- Collins M.D., Farrow J.A.E., Katic V. & Kandler O.: Taxonomic studies on streptococci of serological groups E, P, U and V:
description of Streptococcus porcinus sp. nov. Syst. Appl. Microbiol. 1984, 5, 402-413. - R. Facklam, J. Elliott, N. Pigott & A.R. Franklin: Identification of Streptococcus porcinus from human sources. Journal of Clinical
Microbiology, Feb 1995, 385-388, Vol 33, No. 2. - Rafael S. Duarte, Rosana R. Barros, Richard R. Facklam & Lúcia M. Teixeira: Phenotypic and Genotypic Characteristics of
Streptococcus porcinus Isolated from Human Sources. Journal of Clinical Microbiology, September 2005, p. 4592-4601, Vol.
43, No. 9
ADH, phosphatase alcaline, leucine arylamidase, esculin, N-acetylglucosamine,
fructose, galactose, glucose, mannose, ribose, sorbitol & trehalose are positive.
Alpha & beta-galactosidase, pyrrolidonyl-arylamidase, adonitol, D-arabinose, L-arabinose, D-arabitol, L-arabitol, dulcitol, erythritol,
fucose, gluconate, 2-keto-gluconate, 5-keto-gluconate, alpha-methyl-D-glucoside, glycogen, inositol, inulin, lyxose,
alpha-methyl-D-mannoside, raffinose, rhamnose, L-sorbose, tagatose, D-turanose, xylitol, xylose, hippurate, urea, catalase & starch
are negative.
fructose, galactose, glucose, mannose, ribose, sorbitol & trehalose are positive.
Alpha & beta-galactosidase, pyrrolidonyl-arylamidase, adonitol, D-arabinose, L-arabinose, D-arabitol, L-arabitol, dulcitol, erythritol,
fucose, gluconate, 2-keto-gluconate, 5-keto-gluconate, alpha-methyl-D-glucoside, glycogen, inositol, inulin, lyxose,
alpha-methyl-D-mannoside, raffinose, rhamnose, L-sorbose, tagatose, D-turanose, xylitol, xylose, hippurate, urea, catalase & starch
are negative.
(c) Costin Stoica
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