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. 2019 Jan 9;8:32. [Version 1] doi: 10.12688/f1000research.17652.1

Figure 2. Dose response curves for E. coli BW25113.

Figure 2.

Antibiotic concentrations used (in µg/mL) were as follows: Tet: 10 µg/mL for copper; Str: 2 µg/mL for copper and 10 µg/mL for pyrethrins. Values are means of at least 3 independent experiments; error bars are standard errors (SEM, with SEM=standard deviation/√n). Asterisks indicate the lowest biocide concentration for which a statistically significant change in EoP by at least 100-fold compared to the antibiotic only occurred. * P<0.05; ** P<0.01; *** P<0.001; ns, not significant.