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Schematic representation of histone acetylation regulation in lateral root development under heat stress. Histone acetylation level of ZmHO-1 and ZmGSL-1 gene promoter region were decreased under heat treatment. The lower acetylated histone apparently highly charged and binds with DNA phosphate backbone closely. The transcription factor and RNA polymerase II might not access DNA, therefore inhibited transcription, subsequently led to the lateral root abnormality in maize.
