Figure 5.
Quantification of biofilm formation. Biofilm formation by Citrobacter strains after growth at 37 or 25°C. Quantification of biofilm formation was performed after crystal violet extraction and measurement (OD620). Values are presented as the mean ± standard deviation (SD) of four independent experiments. *p < 0.05; **p < 0.01, and ***p < 0.001.
