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Biofilm Formation and the Presence of the Intercellular Adhesion Locus ica among Staphylococci from Food and Food Processing Environments

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Møretrø, Trond, Hermansen, Lene, Holck, Askild L., Sidhu, Maan S., Rudi, Knut, Langsrud, Solveig·2003·Applied and Environmental Microbiology

Abstract

In clinical staphylococci, the presence of the ica genes and biofilm formation are considered important for virulence. Biofilm formation may also be of importance for survival and virulence in food-related staphylococci. In the present work, staphylococci from the food industry were found to differ greatly in their abilities to form biofilms on polystyrene. A total of 7 and 21 of 144 food-related strains were found to be strong and weak biofilm formers, respectively. Glucose and sodium chloride stimulated biofilm formation. The biofilm-forming strains belonged to nine different coagulase-negative species of Staphylococcus. The icaA gene of the intercellular adhesion locus was detected by Southern blotting and hybridization in 38 of 67 food-related strains tested. The presence of icaA was positively correlated with strong biofilm formation. The icaA gene was partly sequenced for 22 food-related strains from nine different species of Staphylococcus , and their icaA genes were found to have DNA similarities to previously sequenced icaA genes of 69 to 100%. Northern blot analysis indicated that the expression of the ica genes was higher in strong biofilm formers than that seen with strains not forming biofilms. Biofilm formation on polystyrene was positively correlated with biofilm formation on stainless steel and with resistance to quaternary ammonium compounds, a group of disinfectants.

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Metadata

Authors
Møretrø, T., Hermansen, L., Holck, A. L., Sidhu, M. S., Rudi, K., & Langsrud, S.
Venue
Applied and Environmental Microbiology
Published
2003-09
Volume
69
Issue
9
Pages
5648-5655
ISSN
  • 0099-2240 (ISSN-L)
  • 1098-5336
OpenAlex
W2113426539
Cited by
171
References
3
FWCI
1.61
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Biofilm Formation and the Presence of the Intercellular Adhesion Locus ica among Staphylococci from Food and Food Processing Environments. https://app.cochat.ai/papers/10.1128/aem.69.9.5648-5655.2003
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Møretrø, T., Hermansen, L., Holck, A. L., Sidhu, M. S., Rudi, K., & Langsrud, S. (2003). Biofilm Formation and the Presence of the Intercellular Adhesion Locus ica among Staphylococci from Food and Food Processing Environments. Applied and Environmental Microbiology. https://doi.org/10.1128/aem.69.9.5648-5655.2003

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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