FIG 3.

BP degradation curves (A) and cell viability (B) of strain B6-2 and its two mutants. Overnight culture samples of strain B6-2 and mutants grown in LB medium were inoculated (1:10) in BP (2 g · liter⁻¹) medium. Additional 2 g · liter⁻¹ BP was added to the culture every 24 h. At each data point, the amount of residual BP was analyzed by HPLC. On days 1, 2, and 3, the viable counts were measured by plating serial dilutions of each culture on LB plates. Data represent the averages from three parallel replicates ± SDs.