MADS-box transcription factor involved in the activation of the dihydroxynaphthalene (DHN)-melanin pathway and the fumiquinazoline C cluster during conidiogenesis (PubMed:27393422, PubMed:33705521). Specifically recognizes a DNA binding site (poly A/T stretch) identified in the promoter sequence of the gene coding for the polyketide synthase pksP and of the fumiquinazoline C cluster (fmq) promoters (PubMed:27393422, PubMed:33705521). Expression is inceased two fold when the MAPK mpkB is deleted. Affects sporulation and reduces the expression of the DHN-melanin gene cluster (PubMed:27393422). Decreases also strongly the production of fumiquinazoline C (PubMed:33705521). Belongs to the MEF2 family.