Figure 1

Comparison of P4HB accumulation in six recombinant E. coli strains. Cultures were grown in shake flasks at 37°C in modified E2 minimal medium containing either glucose or xylose (10 g L^-1). Error bars represent the standard deviations from four independent measurements. There is a significant difference from t-test in the P4HB accumulation between the strains growing on glucose and on xylose with t(5) value of 3.71 and p < 0. 01.