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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Bacillales => Staphylococcaceae => Staphylococcus => Staphylococcus caprae Devriese et al. 1983.
Gram positive cocci, 0.8 - 1.2 μm, non-motile, non-sporing. Form pairs, chains and
clusters.
clusters.
Colonies non-pigmented, slightly convex, opaque, and glistening, 5–8 mm diameter.
Hemolytic (delayed reaction). Facultatively anaerobic, 25 - 45 °C, 37 ºC optimum.
Growth is much slower at 25°C. Grow on media: Nutrient agar or nutrient broth,
Trypticase Soy Agar ± 5% sheep blood, Mueller Hinton agar, Chapman (selective
medium with 75 g/l de NaCl & mannitol).
Hemolytic (delayed reaction). Facultatively anaerobic, 25 - 45 °C, 37 ºC optimum.
Growth is much slower at 25°C. Grow on media: Nutrient agar or nutrient broth,
Trypticase Soy Agar ± 5% sheep blood, Mueller Hinton agar, Chapman (selective
medium with 75 g/l de NaCl & mannitol).
Isolated rarely, from animals (goats' milk & skin), and humans. Susceptible to Novobiocin.
May produce mastitis in small ruminants, rarely nosocomial infections in humans (bone and joint sepsis or bacteremia,
endocarditis, urinary tract infections, otitis externa); neonatal bacteremia .
endocarditis, urinary tract infections, otitis externa); neonatal bacteremia .
- Holt J.G., Krieg N.R., Sneath P.H.A., Staley J.T., Wiliams S.T., 1994. Bergey's Manual of Determinative Bacteriology, Ninth
Edition, Williams & Wilkins, Baltimore. Group 17, Gram-Positive Cocci, 527-558. - Devriese L.A., Poutrel B., Kilpper-Balz R. & Schleifer K.H.: Staphylococcus gallinarum and Staphylococcus caprae, two new
species from animals. Int. J. Syst. Bacteriol., 1983, 33, 480-486. - Ross T. L., Fuss E. P., Harrington S. M., Cai M., Perl T. M.,& Merz W. G.: Methicillin-Resistant Staphylococcus caprae in a
Neonatal IntensiveCare Unit. Journal of Clinical Microbiology, January 2005, p. 363-367, Vol. 43, No. 1. - Karl-Heinz Schleifer and Julia A. Bell, 2009. Family VIII. Staphylococcaceae fam. nov.. In: (Eds.) P.D. Vos, G. Garrity, D. Jones,
N.R. Krieg, W. Ludwig, F.A. Rainey, K.-H. Schleifer, W.B. Whitman. Bergey’s Manual of Systematic Bacteriology, Volume 3: The
Firmicutes, Springer, 392-426.
Positive results for nitrate reduction, alkaline phosphatase, arginine dihydrolase
urease, acetoin production, deoxyribonuclease agar, catalase, acid production from:
mannose, lactose, trehalose & galactose.
Negative results for oxidase, hyaluronidase, coagulase-rabbit plasma, clumping factor, fibrinolysin, beta-glucosidase, beta-
glucuronidase, beta-galactosidase, caseinase, gelatinase, staphylokinase, Tween 80 hydrolysis, acid production from: amygdalin,
arabinose, arbutin, xylitol, raffinose, xylose, cellobiose, fucose, beta-gentiobiose, mannitol, melibiose, melezitose & turanose.
urease, acetoin production, deoxyribonuclease agar, catalase, acid production from:
mannose, lactose, trehalose & galactose.
Negative results for oxidase, hyaluronidase, coagulase-rabbit plasma, clumping factor, fibrinolysin, beta-glucosidase, beta-
glucuronidase, beta-galactosidase, caseinase, gelatinase, staphylokinase, Tween 80 hydrolysis, acid production from: amygdalin,
arabinose, arbutin, xylitol, raffinose, xylose, cellobiose, fucose, beta-gentiobiose, mannitol, melibiose, melezitose & turanose.
(c) Costin Stoica
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