Staphylococcus Lugdunensis - Description

Description

Colonies of S. lugdunensis are usually hemolytic, sticky, yellow or tan and about 2–4 mm in diameter after a 48-hour incubation. They also can have a characteristic sweet, hay-like odor.

S. lugdunensis may produce a bound coagulase (that is, the enzyme is bound to the cells), a property it shares with S. aureus, but unlike S. aureus, it does not produce a free coagulase. In the laboratory, it can give a positive slide-coagulase test but a negative tube-coagulase test.

S. lugdunensis is fairly easy to identify because, unlike the great majority of staphylococci, it decarboxylates ornithine and is positive for pyrrolidonyl arylamidase.

In the past, it was frequently misidentified as S. hominis, S. aureus or other species.

It occurs as a commensal on human skin, but has been recorded as a cause of serious human infections, such as osteomyelitis, septicaemia, and aggressive endocarditis.

It is generally susceptible to antistaphylococcal antibiotics, but increasing penicillin resistance has been reported.

Read more about this topic:  Staphylococcus Lugdunensis

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