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Histogram of luciferase activities obtained from lux fusions with 14 promoters. L. lactis MG1363 strains carrying the fusions were grown in CDM and CDM Casitone. The values reported correspond to those obtained at an OD600 of 0.4. Error bars indicate standard deviations. Diamonds contain the strength of repression corresponding to the ratio of luciferase activities obtained in CDM and in CDM Casitone.
