Figure 5

Growth kinetics of wild type and knock-out (KO) strains of Sii CJ18 in lactose medium. Growth kinetics of CJ18 wild type (A), CJ18ΔlacIIC (B), CJ18ΔlacS (C) and CJ18ΔlacZ (D) were compared in Elliker-based lactose medium for optical density (OD₆₀₀ ■) and for metabolites lactose (◊),lactate (○) and galactose (□) in cell-free supernatant. Representative curves of two independent repetitions per strain are shown.