Figure 5
Responses of marker genes to starvation in two batch cultures (I and II) of T. reesei. A. Specific growth rate ÎĽ, lactose concentrations, specific base consumption rate rbase. B. Expression of cellulase and laccase genes as log2 ratio to maximal expression measured in the cultures (blue symbols). Expression of genes showing >2-fold increasing mRNA level relative to polyA RNA after exhaustion of lactose as log2 ratio to the expression level in a sample taken before the observed increase (red symbols).