Trichostatin A Selectively Suppresses the Cold-Induced Transcription of the ZmDREB1 Gene in Maize
Figure 6
Comparison of H3K9Ac, H4K5Ac and H44Ac levels in the ZmDREB1 gene region.
A–C. Cold stress caused hyperacetylation in the ICE1 binding region (Set A, D and E) and the first exon (Set F). Two other promoter regions (Set B and C) were still hypoacetylated during cold acclimation. When cold-acclimated plants were treated with TSA, all regions were hyperacetylated, and the transcription of ZmDREB1 was repressed. D. Schematic representation of the ZmDREB1 gene from −3074 to +222 bp. Primer sets A, D and E contain a MYC recognition element that can be specifically combined with ICE1. Bars represent standard errors.