FIGURE 6.
Cells devoid of the plasmid show a homogeneous expression of the promoter of conjugation when ectopically integrated into the chromosome of B. subtilis. A, fluorescence pictures of PY79 cells carrying Pc-mcherry. Shown are overlays of fluorescent and phase-contrast images taken at the indicated time points. Scale bar, 4 μm. B, cells devoid of the plasmid exhibit a unimodal distribution of the fluorescent signal. Shown are log-transformed signal intensities plotted on a linear scale. a.U., arbitrary units.