Western blotting for H4ac (11 kDa) and H3K9me2 (17 kDa) in maize root tip cells treated with TSA or 5-AC. Antibodies against tubulin were used as a protein loading control. Representative blots are shown. Average values of abundance index of H4ac and H3K9me2 were indicated in each lane (Mean ± SE). After treatment with either TSA or 5-AC, an increase in global H4ac and a decrease in global H3K9me2 were observed.