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Transcription regulation of rapA in rapF, rapC, phrF, and phrC mutants. Strains carrying rapA-lacZ transcriptional fusion constructs were grown in Schaffer's sporulation medium. Time points were taken at hourly intervals before and after the transition (To) from exponential growth to stationary phase. A. •-, JH12981 wild type; -♦-, JH23059 rapF; -▾-, JH11030 rapC; -▪-, JH23065 rapC rapF. B. •-, JH12981 wild type; -♦-, JH11500 phrF; -▾-, JH11423 phrC; -▪-, JH11508 phrC phrF.
