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Transcription activities of hlyR4 and halH4. (a and b) Transcription levels of halH4 (a) and hlyR4 (b) after incubation for 0 h (lane 1), 24 h (lane 2), 48 h (lane 3), 72 h (lane 4), 96 h (lane 5), and 120 h (lane 6) were determined by reverse transcription-PCR. (c) The 16S rRNA gene was used as a positive control. The molecular sizes of the standard DNA ladder (lane M) are shown on the left.
