Fig. 8

Comparison of the ethanol production ability between four mutant strains tolerant to high furfural stress and the WT strain. a The ability of four mutant strains and the WT strain to utilize glucose at 3.5Â g/L furfural; b the ethanol production by four mutant strains and the WT strain at 3.5Â g/L furfural. The results shown are the average of three experiments. WT, wild-type