Transcription factor that regulates asexual reproduction (PubMed:20879840). Binds the StuA-response elements (StRE) with the consensus sequence 5'-(A/T)CGCG(T/A)N(A/C)-3' at the promoters of target genes (PubMed:20879840). Controls the expression of the gene clusters involved in the production of deoxynivalenol (DON) and 15-acetyldeoxynivalenol (15ADON) (PubMed:20879840). Regulates the expression of genes involved in chitin and glucan metabolism (PubMed:20879840). Controls also catalase activity and cell surface hydrophobicity (PubMed:20879840). Plays an important role in pathogenicity (PubMed:20879840). Does not develop perithecia and sexual ascospores, and lacks conidiophores and phialides (PubMed:20879840). Greatly reduces pathogenicity on wheat heads and production of secondary metabolites such as deoxynivalenol (DON) and 15-acetyldeoxynivalenol (15ADON) (PubMed:20879840). Leads to up-regulation of cell-cycle genes which promoters are highly enriched in StuA-response elements (StRE) (PubMed:20879840). Belongs to the EFG1/PHD1/stuA family.