10







                1:








                0.1
                    0                       50
                                   Time (hours)



Figure 3-10. The effect of various PD concentrations on the growth of strain BE182
          (ApduA) and the wild type strain. Cells were cultured on PD/CN-B12 minimal
          media having the following PD concentrations: 0.4% (0,D), 0.2% (A, A),
          0.1% (@, 0), and 0.05% (*, 0). Wild type, S. enterica serovar
          Typhimurium LT2 (closed symbols). BE182 (4pduA) (open symbols).
          OD600, optical density at 600nm.