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Expression of a dctA-lacZ transcriptional fusion during aerobic growth in L broth. The β-galactosidase activities (solid symbols) and culture densities (open symbols) of JRG3351 (dctA-lacZ) are shown after growth at 37°C in L broth (◊ and ⧫), L broth with 50 mM succinate (□ and ■), and L broth with 1% glucose (○ and ●). Error bars represent standard deviations for two cultures, each assayed in duplicate. OD650 nm, optical density at 650 nm.
