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E. coli strains used in this study
| Strain | Relevant phenotype | Expression of type 1 fimbriae | CSH ± SD (%)a | Reference |
|---|---|---|---|---|
| MS7fim− | PC31Δfim; Kanr | − | 1.2 ± 0.5 | 45 |
| MS7fim+ | PC31Δfim(pPKL4); Apr | + | 6.0 ± 1.9 | 43 |
Data are presented as percentages of cells in a population with three or more attached hydrophobic microspheres (32). The adsorption of a high number of microspheres per cell is related to a high cell surface hydrophobicity (CSH), determined by microsphere adhesion to cells.
