The effects of magnesium, calcium and EDTA on slime production byStaphylococcus epidermidis strains

Effect of magnesium, calcium and EDTA on slime production by 15 slime-positive and 13 slime-negativeStaphylococcus epidermidis strains isolated from various clinical specimens was determined. The slime production on tryptic soy broth was significantly enhanced after addition of 128 µmol/L Mg2+. Simi...

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Bibliographic Details
Published in:Folia microbiologica 2003-09, Vol.48 (5), p.649-653
Main Authors: Akpolat, N. Özerdem, Elçi, S., Atmaca, S., Akbayin, H., Gül, K.
Format: Article
Language:English
Subjects:
Calcium
Calcium ions
Edetic acid
Ethylenediaminetetraacetic acids
Gram-positive bacteria
Magnesium
Microbiology
Pathogenesis
Pathology
Slime
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Summary:Effect of magnesium, calcium and EDTA on slime production by 15 slime-positive and 13 slime-negativeStaphylococcus epidermidis strains isolated from various clinical specimens was determined. The slime production on tryptic soy broth was significantly enhanced after addition of 128 µmol/L Mg2+. Similarly, the addition of Ca2+ caused a significant increase in slime production of all tested strains when concentration of Ca2+ exceeded 64 µmol/L. In contrast, in the presence of EDTA the slime production by all strains was significantly reduced. Hence Ca2+ and Mg2+ increase slime production ofS. epidermidis. This finding is important in the context of the pathogenesis of biomedical implant infections caused byS. epidermidis.
ISSN:0015-5632
1874-9356
DOI:10.1007/BF02993473