Transcription factor that plays a role downstream of the MCK1-MKK2-MPS1 cascade (PubMed:22321443). Required for hyphal morphogenesis and pathogenicity (PubMed:22321443). Is an important oxidative stress response regulator and plays a positive role in the regulation of extracellular peroxidases (PubMed:22321443). Leads to deformed and non-melanized appressoria that are unable to penetrate plant surface due to the impaired cell wall integrity (PubMed:22321443). Shows abnormal hyphae as a result of altered chitin synthesis (PubMed:22321443). Leads to sensitivity to H(2)O(2) (PubMed:22321443).