After selection of
transformants on media lacking uracil, cells were cultured in YPC
medium at 30C for 5 days, during which their cell densities and
enzymatic activities were monitored. YPC medium contained
cellobiose as the sole carbon source. For yeast strains to survive
on this medium, the expression of a functional b-glucosidase is
essential. Cells expressing AaBGL1 or TrCel3B reached a
comparable cell-density during the stationary phase (Fig. 3A).