MoMyb1 has a role in cell wall integrity. (A) Wild type Guy11, ΔMomyb1 mutant and the complemented transformant were incubated on CM plate containing different concentrations of CFW at 28°C for 7 days. (B) The growth rate was determined 7 days after incubation at 28°C by plotting the percentage of colonies in the presence of various concentrations of CFW against regular CM. (C) The expression levels of seven chitin synthases encoding genes in the ∆Momyb1 mutant. (D) GlcNa determination shows significantly decreased chitin contents in the ∆Momyb1 mutant. Data comprise three independent experiments with triple replications each time that yielded similar results. Asterisks were indicated significant differences at P < 0.01.