(A) Northern blots of total RNA extracted from wild-type mycelia after growth in the presence of d-fructose (lane F) for 17 h and transfer to inducing conditions in media buffered with sodium phosphate to pH 4, 6, and 8. (B) Similar experiment performed with mycelia from the wild type (wt) and the pacCc14 and palA1 mutants after fructose-grown biomass was transferred to nonbuffered inducing conditions (1% d-xylose) for 1, 2, 4, and 6 h.