Expression analyses of hydrophobin genes in C . rosea . A: Total RNA was extracted from mycelia 24 h post incubation in submerged shake flask culture in glucose, C lim and N lim medium. B: Total RNA was extracted from mycelia of different developmental stages like germinating conidia (GC), vegetative mycelium (M), Conidiated mycelim (CM), aerial hyphae (AH) and post five days interaction with barley roots (Cr-Br). C: gene expression analysis during different stages of interaction with B. cinerea (Cr-Bc) or F. graminearum (Cr-Fg). C. rosea confronted with itself was used as control (Cr-Cr). Expression levels for Hyd1, Hyd2 and Hyd3 was normalized by tubulin expression, using the formula described by Pfaffl . Error bars represent standard deviation based on 3 biological replicates. Different letters indicate statistically significant differences (P ≤ 0.05) within experiments based on the Tukey-Kramer test.