Abstract
Rapid screening of biofilm forming capacity by Staphylococcus epidermidis is possible using in vitro assays with 96-well plates. This method first developed by Christensen et al. in 1985 is fast and does not require specialized instruments. Thus, laboratories with standard microbiology infrastructure and a 96-well plate reader can easily use this technique to generate data on the biofilm phenotypes of multiple S. epidermidis strains and clinical isolates. Furthermore, this method can be adapted to gain insights into biofilm regulation and the characteristics of biofilms produced by different S. epidermidis isolates. Although this assay is extremely useful for showing whether individual strains are biofilm-positive or biofilm-negative and distinguishing between form weak, moderate or strong biofilm, it is important to acknowledge that the absolute levels of biofilm produced by an individual strain can vary significantly between experiments meaning that strict adherence to the protocol used is of paramount importance. Furthermore, measuring biofilm under static conditions does not generally reflect in vivo conditions in which bacteria are often subjected to shear stresses under flow conditions. Hence, the biofilm characteristics of some strains are dramatically different under flow and static conditions. Nevertheless, rapid measurement of biofilm production under static conditions is a useful tool in the analysis of the S. epidermidis biofilm phenotype.
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Waters, E.M., McCarthy, H., Hogan, S., Zapotoczna, M., O’Neill, E., O’Gara, J.P. (2014). Rapid Quantitative and Qualitative Analysis of Biofilm Production by Staphylococcus epidermidis Under Static Growth Conditions. In: Fey, P. (eds) Staphylococcus Epidermidis. Methods in Molecular Biology, vol 1106. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-62703-736-5_14
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DOI: https://doi.org/10.1007/978-1-62703-736-5_14
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