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. 2020 Jun 9;11:1240. doi: 10.3389/fmicb.2020.01240

FIGURE 2.

FIGURE 2

Chemical structures of compounds used in this study. N-hexanoyl homoserine lactone = C6-HSL, N-3-hydroxyhexanoyl homoserine lactone = OH-C6-HSL, N-3-oxohexanoyl homoserine lactone = oxo-C6-HSL, N-tetradecanoyl homoserine lactone = C14-HSL, N-3-hydroxytetradecanoyl homoserine lactone = OH-C14-HSL, and N-3-oxotetradecanoyl homoserine lactone = oxo-C14-HSL.