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Fluorescent images of biofilms of M. pulmonis. Red, DNA of cells stained with PI; blue, DNA of cells stained with Hoechst 33342. Images on the left show the honeycomb regions of the biofilms. Images on the right show the tower structures of the biofilms. Biofilms were incubated with either GPS (A and B), HIA-GPS (C and D), gramicidin (E and F), or PBS (G and H). The scale bar is in red.
