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Bacterial Strains Isolated from Different Niches Can Exhibit Different Patterns of Adhesion to Substrata

By Dewi P. Bakker, Bart R. Postmus, Henk J. Busscher and Henny C. van der Mei


Various mechanisms have been demonstrated to be operative in bacterial adhesion to surfaces, but whether bacterial adhesion to surfaces can ever be captured in one generally valid mechanism is open to question. Although many papers in the literature make an attempt to generalize their conclusions, the majority of studies of bacterial adhesion comprise only two or fewer strains. Here we demonstrate that three strains isolated from a medical environment have a decreasing affinity for substrata with increasing surface free energy, whereas three strains from a marine environment have an increasing affinity for substrata with increasing surface free energy. Furthermore, adhesion of the marine strains related positively with substratum elasticity, but such a relation was absent in the strains from the medical environment. This study makes it clear that strains isolated from a given niche, whether medical or marine, utilize different mechanisms in adherence, which hampers the development of a generalized theory for bacterial adhesion to surfaces

Topics: Environmental Microbiology
Publisher: American Society for Microbiology
Year: 2004
DOI identifier: 10.1128/AEM.70.6.3758-3760.2004
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Provided by: PubMed Central
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