FIG. 2.

Growth of P. putida A4 in M187 supplemented with 10% p-xylene and 1 g liter⁻¹ ampicillin. IPTG was added to induce expression of the desulfurizing genes, which was driven by the tac promoter. ▪, absorbance at 600 nm (D₆₀₀) of P. putida A4 culture; □, dry cell weight of P. putida A4 culture. The values are means of at least three replicates, and the error bars indicate standard deviations.