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Taxonomy
Morphology
Cultural characteristics
Biochemical characters
Ecology
Pathogenicity
References
Firmicutes => Bacilli => Bacillales => Staphylococcaceae => Staphylococcus => Staphylococcus haemolyticus Schleifer and Kloos
1975.
1975.
Gram positive cocci, non-motile, non-sporing, 0.8–1.3 μm in diameter, grouped in
pairs and tetrads.
pairs and tetrads.
Colonies are non-pigmented or yellowish, smooth, glistening, opaque, with entire
margins, 5-9 mm in diameter and haemolytic. Hemolysis may be weak sometimes.
Facultatively anaerobic, grow better aerobically. Temperature range 18 to 40 °C
(optimum 34-35 °C). Used media: Trypticase Soy Agar + 5% sheep blood, Mueller
Hinton agar, P agar. Grows well in medium containing 10% NaCl; variable and poor
growth at 15% NaCl.
margins, 5-9 mm in diameter and haemolytic. Hemolysis may be weak sometimes.
Facultatively anaerobic, grow better aerobically. Temperature range 18 to 40 °C
(optimum 34-35 °C). Used media: Trypticase Soy Agar + 5% sheep blood, Mueller
Hinton agar, P agar. Grows well in medium containing 10% NaCl; variable and poor
growth at 15% NaCl.
Isolated from human & animal skin. Susceptible to novobiocin & lysostaphin. Resistant to lysozyme.
Commensal of the skin, rarely cause infections in immunocompromised organisms (septicemia, peritonitis, otitis, and urinary tract
infections). Known for its resistance to many antibiotics. Has occasionally been associated with mastitis in cattle.
infections). Known for its resistance to many antibiotics. Has occasionally been associated with mastitis in cattle.
- 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. - Schleifer K.H. & Kloos W.E.: Isolation and characterization of staphylococci from human skin. Amended descriptions of
Staphylococcus epidermidis and Staphylococcus saprophyticus and descriptions of three new species: Staphylococcus
cohnii, Staphylococcus haemolyticus, and Staphylococcus xylosus. International Journal of Systematic Bacteriology, 1975, 25,
50-61. - 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 arginine dihydrolase, catalase, acid production from glucose,
glycerol, maltose,sucrose & trehalose.
Negative results for alkaline phosphatase, urease, oxidase, coagulase-rabbit plasma, clumping factor, heat-stable nuclease,
beta-galactosidase, acid production from mannose, xylitol, raffinose, xylose, arabinose, cellobiose, erythritol, erythrose, fucose,
gentiobiose, salicin & melezitose.
Variable results for acetoin production, glucosidase, glucuronidase, deoxyribonuclease, nitrate reduction, acid production from:
lactose, mannitol, fructose, turanose & ribose.
glycerol, maltose,sucrose & trehalose.
Negative results for alkaline phosphatase, urease, oxidase, coagulase-rabbit plasma, clumping factor, heat-stable nuclease,
beta-galactosidase, acid production from mannose, xylitol, raffinose, xylose, arabinose, cellobiose, erythritol, erythrose, fucose,
gentiobiose, salicin & melezitose.
Variable results for acetoin production, glucosidase, glucuronidase, deoxyribonuclease, nitrate reduction, acid production from:
lactose, mannitol, fructose, turanose & ribose.
(c) Costin Stoica
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