Figure 4
From: Artificial biosynthesis of phenylpropanoic acids in a tyrosine overproducing Escherichia coli strain
Comparison of 4-coumaric acid (A), caffeic acid (B) and ferulic acid (C) between wild-type and engineered tyrosine overproducing E. coli strains. (A) Production of 4-coumaric acid with pET-TAL and pET-opTAL; (B) Production of caffeic acid with pET-T5 and pET-opT5; (C) Production of ferulic acid with pET-T5M and pET-opT5M. W, wild-type E. coli; T, tyrosine overproducing E. coli. Error bars indicate standard errors of the means. Different letters codes (a to c’) indicate significant differences (a, P = 2.06E-7; a’, P = 2.71E-12; b, P = 8.48E-4; b’, P = 4.3E-4; c, P = 1.67E-6; c’, P = 3.09E-7).