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Induction response of lacZ in the reporter strain of “P. butanovora” to increasing concentrations of 1-butanol (⧫), 1,2-cis DCE (▵), 1,2-trans DCE (□), and 1,1-DCE (○). β-Galactosidase (lacZ) activities were determined at time intervals of 2 h (A) and 4 h (B) as described in Materials and Methods. The data points are the means of three replicates, and the error bars represent standard deviations.
