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. 2017 Aug 18;7:8861. doi: 10.1038/s41598-017-07567-0

Figure 1.

Figure 1

The effect of promysalin and chlorhexidine on S. thermophilus DSM 20617 T cell membrane integrity. Flow cytometry density diagrams show the SYBR Green I vs PI fluorescence of cells exposed to promysalin or chlorhexidine (100 µg/ml respectively). (a) Cells before the exposure to the antibacterial molecule. (bd) Cells after the exposure to the antimicrobial molecule. Viable cells are gated in G1, viable cells with slightly damaged cell membrane are gated in G2. Dead cells with damaged membrane are gated in G3. The transition of cell population from gate G1 to gate G3 is related to the entity of cell membrane damage.