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. 2020 Sep 4;16:326. doi: 10.1186/s12917-020-02547-5

Fig. 5.

Fig. 5

Fluorescence microscopy images of E. coli stained with propidium iodide: a negative control (untreated), b negative control (heat -killed), c gentamicin (1 μg/mL) treated for 3 h, d S. legatii (0.04 mg/mL) treated for 3 h, e) E. zeyheri (0.04 mg/mL) treated for 3 h. The red fluorescence indicates cells with damaged membrane