Transcription activation factor positively regulating trichomes development (PubMed:24803498). Has a function nearly equivalent to that of GL1 and can complement gl1 mutants (PubMed:24803498). Homodimer and heterodimer with GL1 (PubMed:24803498). Part of the WD40-bHLH-MYB complex (PubMed:24803498). Interacts with BHLH012/MYC1 and BHLH042/TT8 (PubMed:15361138). Interacts (via N-terminus) with GL1 and GL3 (PubMed:24803498). Mainly expressed in the trichomes of new leaves. By auxin (IAA). The N-terminal domain is necessary and sufficient for dimer formation. The C-terminal domain is responsible for the transcription activation function. At least one of the two introns in the MYB82 gene is essential to the protein's trichome developmental function. The MYB-binding box (5'-TAAGCCAGTTATGTCT-3') located in the third exon of the MYB82 gene is required for MYB82 function in trichome initiation.