Figure 2.

Comparison between pdc1Δ::LhLDH, pdc1Δ::BmLDH, and pdc1Δ::RoLDH strains. Lactate (A), ethanol (B) and glucose (C) concentrations in YP+ 5% (w/v) glucose medium by pdc1Δ::LhLDH (⋄), pdc1Δ::BmLDH (□), pdc1Δ::RoLDH (∆) strains, the pdc1Δ strain without LDH (○), and wild type C. sonorensis (●). The final yields of lactate, ethanol and biomass on glucose, determined at the sample time when glucose was exhausted, are shown in panel D. Data are means ± SEM (n= 3–9). Where no error bars are seen, SEM was less than the size of the symbol.