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| Strain | Biofilm thickness (µm)a |
| L. monocytogenes 10403S | 31.00 ± 1.69b |
| flaA::Himar1 | 22.00 ± 3.02b |
| ΔdltABCD | 17.00 ± 1.84b |
| ΔphoPR | 15.28 ± 0.65b |
Results presented are the means ±SD from two independent experiments performed in triplicate.
Student's t-test indicated a statistically significant difference between biofilm thickness formed by L. monocytogenes 10403S compared to mutant bacterial strains (p ≤ 0.05).
