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Effects of IFA (400 μg/mL) combined with antibiotics on bacterial viability of E. coli O157:H7. (A) Fosfomycin sodium. (B) Ceftriaxone. (C) Gentamicin. (D) Polymyxin B. (E) Streptomycin. (F) Chloramphenicol. (G) Tetracycline. (H) Azithromycin. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001.
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(A) mCherry reporting PhoP levels for all cells over time in low, moderate, and high objective groups. The specified objective group begins at time t = 4 h and continues until the end of the experiment. At time t = 8 h, <t>polymyxin</t> <t>B</t> is added to the cell media at a final concentration of 500 ng/mL. (B) GFP levels, from the pmrD reporter, for cells in each objective group over time. Median plus middle quintile shown for each objective group. n > 200 cells per objective. (C) Fraction of cells remaining alive for each objective group over time. (D) Mean mCherry over time for cells from all objective groups. Cells are partitioned into quartiles based on the time of death after polymyxin B exposure, with the 1 st quartile representing the shortest-surviving cells and the 4 th quartile representing the longest-surviving cells. Note that the durations of the data traces vary between the four groups due to differences in time of death. (E) Mean GFP from the pmrD reporter over time for all cells. (F) Scatterplot of joint time series projection on mCherry-GFP plane from hours 4 to 8 of the experiment. (G) Mutual information between the single or joint time series and the survival quartile. Dynamic signals from hours 4 to 8 of the experiment were used for the computation of mutual information. (H) Pairwise probability of correct discrimination (PCD) between survival quartiles extracted from single or joint time series.
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(A) mCherry reporting PhoP levels for all cells over time in low, moderate, and high objective groups. The specified objective group begins at time t = 4 h and continues until the end of the experiment. At time t = 8 h, <t>polymyxin</t> <t>B</t> is added to the cell media at a final concentration of 500 ng/mL. (B) GFP levels, from the pmrD reporter, for cells in each objective group over time. Median plus middle quintile shown for each objective group. n > 200 cells per objective. (C) Fraction of cells remaining alive for each objective group over time. (D) Mean mCherry over time for cells from all objective groups. Cells are partitioned into quartiles based on the time of death after polymyxin B exposure, with the 1 st quartile representing the shortest-surviving cells and the 4 th quartile representing the longest-surviving cells. Note that the durations of the data traces vary between the four groups due to differences in time of death. (E) Mean GFP from the pmrD reporter over time for all cells. (F) Scatterplot of joint time series projection on mCherry-GFP plane from hours 4 to 8 of the experiment. (G) Mutual information between the single or joint time series and the survival quartile. Dynamic signals from hours 4 to 8 of the experiment were used for the computation of mutual information. (H) Pairwise probability of correct discrimination (PCD) between survival quartiles extracted from single or joint time series.
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(A) mCherry reporting PhoP levels for all cells over time in low, moderate, and high objective groups. The specified objective group begins at time t = 4 h and continues until the end of the experiment. At time t = 8 h, <t>polymyxin</t> <t>B</t> is added to the cell media at a final concentration of 500 ng/mL. (B) GFP levels, from the pmrD reporter, for cells in each objective group over time. Median plus middle quintile shown for each objective group. n > 200 cells per objective. (C) Fraction of cells remaining alive for each objective group over time. (D) Mean mCherry over time for cells from all objective groups. Cells are partitioned into quartiles based on the time of death after polymyxin B exposure, with the 1 st quartile representing the shortest-surviving cells and the 4 th quartile representing the longest-surviving cells. Note that the durations of the data traces vary between the four groups due to differences in time of death. (E) Mean GFP from the pmrD reporter over time for all cells. (F) Scatterplot of joint time series projection on mCherry-GFP plane from hours 4 to 8 of the experiment. (G) Mutual information between the single or joint time series and the survival quartile. Dynamic signals from hours 4 to 8 of the experiment were used for the computation of mutual information. (H) Pairwise probability of correct discrimination (PCD) between survival quartiles extracted from single or joint time series.
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Effects of IFA (400 μg/mL) combined with antibiotics on bacterial viability of E. coli O157:H7. (A) Fosfomycin sodium. (B) Ceftriaxone. (C) Gentamicin. (D) Polymyxin B. (E) Streptomycin. (F) Chloramphenicol. (G) Tetracycline. (H) Azithromycin. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001.

Journal: Frontiers in Microbiology

Article Title: Isoferulic acid suppresses Escherichia coli biofilm formation via LuxS/AI-2 quorum sensing inhibition and synergizes with fosfomycin

doi: 10.3389/fmicb.2026.1837128

Figure Lengend Snippet: Effects of IFA (400 μg/mL) combined with antibiotics on bacterial viability of E. coli O157:H7. (A) Fosfomycin sodium. (B) Ceftriaxone. (C) Gentamicin. (D) Polymyxin B. (E) Streptomycin. (F) Chloramphenicol. (G) Tetracycline. (H) Azithromycin. * p < 0.05, ** p < 0.01, *** p < 0.001, **** p < 0.0001.

Article Snippet: Fosfomycin sodium, cefquinome, gentamicin, polymyxin B, streptomycin, tetracycline, chloramphenicol, and azithromycin were purchased from MCE.

Techniques:

(A) mCherry reporting PhoP levels for all cells over time in low, moderate, and high objective groups. The specified objective group begins at time t = 4 h and continues until the end of the experiment. At time t = 8 h, polymyxin B is added to the cell media at a final concentration of 500 ng/mL. (B) GFP levels, from the pmrD reporter, for cells in each objective group over time. Median plus middle quintile shown for each objective group. n > 200 cells per objective. (C) Fraction of cells remaining alive for each objective group over time. (D) Mean mCherry over time for cells from all objective groups. Cells are partitioned into quartiles based on the time of death after polymyxin B exposure, with the 1 st quartile representing the shortest-surviving cells and the 4 th quartile representing the longest-surviving cells. Note that the durations of the data traces vary between the four groups due to differences in time of death. (E) Mean GFP from the pmrD reporter over time for all cells. (F) Scatterplot of joint time series projection on mCherry-GFP plane from hours 4 to 8 of the experiment. (G) Mutual information between the single or joint time series and the survival quartile. Dynamic signals from hours 4 to 8 of the experiment were used for the computation of mutual information. (H) Pairwise probability of correct discrimination (PCD) between survival quartiles extracted from single or joint time series.

Journal: Cell reports

Article Title: Dynamic heterogeneity in an E . coli stress response regulon mediates gene activation and antimicrobial peptide tolerance

doi: 10.1016/j.celrep.2026.117259

Figure Lengend Snippet: (A) mCherry reporting PhoP levels for all cells over time in low, moderate, and high objective groups. The specified objective group begins at time t = 4 h and continues until the end of the experiment. At time t = 8 h, polymyxin B is added to the cell media at a final concentration of 500 ng/mL. (B) GFP levels, from the pmrD reporter, for cells in each objective group over time. Median plus middle quintile shown for each objective group. n > 200 cells per objective. (C) Fraction of cells remaining alive for each objective group over time. (D) Mean mCherry over time for cells from all objective groups. Cells are partitioned into quartiles based on the time of death after polymyxin B exposure, with the 1 st quartile representing the shortest-surviving cells and the 4 th quartile representing the longest-surviving cells. Note that the durations of the data traces vary between the four groups due to differences in time of death. (E) Mean GFP from the pmrD reporter over time for all cells. (F) Scatterplot of joint time series projection on mCherry-GFP plane from hours 4 to 8 of the experiment. (G) Mutual information between the single or joint time series and the survival quartile. Dynamic signals from hours 4 to 8 of the experiment were used for the computation of mutual information. (H) Pairwise probability of correct discrimination (PCD) between survival quartiles extracted from single or joint time series.

Article Snippet: Meanwhile 120 μL minimal M9 solution supplemented with a serial dilution of polymyxin B sulfate (MedChemExpress) was dispensed in a 96 well plate.

Techniques: Concentration Assay