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Fluorescence microscopic images of E. coli 43R containing the recombinant plasmids of pRFN4. E. coli 43R itself (No plasmid), transformed with pRFN4, with pRFN4-Pp N-lumP, and with pRFN4 Pp luxLP N-lumP. DAPI, Diamidino-2-phenylindol; FITC, Fluorescein isothiocynate; DIC, Differential interference contrast. Scale bar; 2 µm.
