FIG. 9.

Effects of the dctA mutation on dctA-lacZ expression. Cultures of JRG3351 (dctA⁺) (open bars) or JRG4005 (dctA::spc) (solid bars) were grown aerobically at 37°C in M9 salts medium containing 0.4% glycerol with or without 50 mM malate, succinate, or maleate. Other details are as for Fig. 7.