Fig. 2.

Effect of strain enhancements on dhurrin and tyrosine production levels. A: Tyrosine and dhurrin titers after 96 h growth of engineered yeast strains in plate culture, with 40 mg/L tyrosine initially present in the medium. B: Tyrosine and dhurrin titers without tyrosine initially present in the medium; otherwise as in A. The table below panels A and B schematically depicts the genotypes of tested strains. **: p ​< ​0.05, one-tailed t-test; ***: p ​< ​0.01, one-tailed t-test.