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Cells of P. luminescens expressing mcherry. P. luminescens TT01 transformants carrying plasmid pBR-Cherry (no promoter, negative control), pBR-Cherry-rpsM (rpsM-promoter, positive control), and pBR-Cherry-PluLib (promoter-trap library) were cultivated in complex medium. Cells were analyzed by fluorescence- (left panel) and phase contrast microscopy (right panel).
