|Categories:||Causes hemolysis; in the normal flora|
|Etymology:||Genus name: bunch of grape-like cocci (coccus means a grain or berry).|
Species epithet: of epidermis (=the outer layer of skin).
|Type Strain:||ATCC 14990 = CCUG 18000 A = CCUG 39508 = NCTC 11047.|
||Medium sized, white, opaque and flat colonies (1-2 mm in diameter). Many strains produce hemolysis on blood agar.|
|Micromorphology:||Non-motile cocci (0.8-1 µm in diameter), which often appear in pairs or in tetrads. May also appear as single cells or in small clusters.|
|Gram +/Gram -:||G+|
|Other Enzymes:||Coagulase-, esculinase -, ornithine decarboxylase -, tryptophanase -, urease +.|
|Biochemical Tests:||Citrate -, hydrogen sulfide (H2S) +, methyl red -, Voges-Proskauer +.|
|Fermentation of carbohydrates:
|Spec. Char.:||Can form a capsule or biofilm consisting of teichoic acid and other components (on e.g. implants).Optimal growth temperature: 30-37°C.|
|Disease:||Belongs to the normal flora of the skin, but may occasionally cause opportunistic infections.
Cattle: mastitis och wound infections.
Other animals: wound infections.
|Hosts:||Different animal species including cattle, dog, horse and humans.|
|16S rRNA Seq.:|
||About 70 species and subspecies have been described within the genus Staphylococcus. S. epidermidis is closely related to S. aureus.|
|Comment:||S. epidermidis is often found as contaminant of clinical samples. S. epidermidis belongs to the group coagulase negativs staphylococci (CNS).|
|New names of taxa within the classification category phylum|
During October 2021, an article was published by A. Oren och G.M. Garrity, in which new names are proposed for a number of taxa within the classification category phylum. This has resulted in many discussions in social media about whether it was really necessary to make these changes, which have created confusion among microbiologists and other professionals who come into contact with bacteriology.Published 2022-09-28. Read more...