Figure 1From: Improvement of n-butanol tolerance in Escherichia coliby membrane-targeted tilapia metallothioneinAlcohol tolerance assay. The OD600 values were measured for engineered E. coli strains cultured in PYG medium with different concentrations of (a.) ethanol and (b.) n-butanol (vol/vol). The relative growth rates were based on the comparison between conditions under alcoholic stresses or not. The values and error bars are based on three replicate experiments.Back to article page