Staphylococcus xylosus

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Staphylococcus xylosus
Scientific classification
Kingdom:Bacteria
Phylum:Firmicutes
Class:Cocci
Order:Bacillales
Family:Staphylococcaceae
Genus:Staphylococcus
Species:S. xylosus
Binomial name
Staphylococcus xylosus
Schleifer & Kloos 1975
 
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Staphylococcus xylosus
Scientific classification
Kingdom:Bacteria
Phylum:Firmicutes
Class:Cocci
Order:Bacillales
Family:Staphylococcaceae
Genus:Staphylococcus
Species:S. xylosus
Binomial name
Staphylococcus xylosus
Schleifer & Kloos 1975

Staphylococcus xylosus is a species of bacteria belonging to the genus Staphylococcus. It is a Gram-positive bacterium that forms clusters of cells. Like most staphylococcal species, it is coagulase-negative and exists as a commensal on the skin of humans and animals and in the environment.[1]

It appears to be far more common in animals than in humans. S. xylosus has very occasionally been identified as a cause of human infection, but in some cases it may have been misidentified.

Identification[edit]

S. xylosus is normally sensitive to fleroxacin, methicillin, penicillin, teicoplanin, tetracycline and resistant erythromycin and novobiocin. It is highly active biochemically, producing acid from a wide variety of carbohydrates.

Acid and gas are produced from D-(+)-galactose, D-(+)-mannose, D-(+)-mannitol, maltose and lactose. Caseinolytic and gelatinase activities are normally present.

It normally produces slime but not capsules. This ability is lost upon subculture. Its cell wall peptidoglycan is similar to the L-Lys-Gly3-5 L-Ser0.6-1.5 type found in predominately human species.

Clinical importance[edit]

Staphylococcus xylosus is a member of the skin flora of humans and other animals. It has been associated with the following conditions:

It is also found in milk, cheese & sausage.

References[edit]

  1. ^ Karl H. Schleifer and Wesley E. Kloos. Isolation and Characterization of Staphylococci from Human Skin I. Amended Descriptions of Staphylococcus epidermidis and Staphylococcus saprophyticus and Descriptions of Three New Species: Staphylococcus cohnii, Staphylococcus haemolyticus, and Staphylococcus xylosus. Int J Syst Bacteriol January 1975 25:50-61; doi:10.1099/00207713-25-1-50.