Figure 5.

(a) Comparison of hydrophobicity for WJW00 and W3110 cells. Absorbance at OD₅₉₅ in the water phase was quantified before and after 3-h incubation at room temperature; (b) comparison of membrane permeability for WJW00 and W3110 cells. The insert shows images of disc diffusion tests on novobiocin sensitivity for W3110 and WJW00 cells; (c) comparison of autoaggregation for WJW00 and W3110 cells. Absorbance at OD₅₉₅ in the upper 0.5-cm culture was determined at different time points; (d) comparison of biofilm formation for WJW00 and W3110 cells. Significant differences between WJW00 and W3110 are shown in panels a, b and d. * p < 0.05; ** p < 0.01. All the experiments were repeated three times, and three samples were performed each time. Error bars indicate the standard deviations from three parallel samples.