Fig. 5. Relative expression analysis of (a) masa, (b) CYP-2, (c) CYP-1 and (d) IDH in P. expansum spores under 0 or 0.6% NaHCO3 treatment at the indicated time, as determinedby quantitative RT-PCR. The ˇ-tub housekeeping gene was used as the internal control. Bars represent standard deviation of the means of three independent experiments.Lower case letters indicate significant differences at P < 0.05.