NO is an important signaling molecule. However, the molecular mechanism underlying NO functions is not understood yet. The influence of NO on chromatin structure and its consequences on plants’ physiological functions were investigated in this thesis. Tendency towards enhanced histone 3 and 4 acetylation were observed in Arabidopsis seedlings after GSNO and INA treatment, which was likely mediated by inhibition of HDAs activity. HDA6 was identified as one of the NO-sensitive isoform. Furthermore, it was found that NO production is light deependent and therefore might be involved in regulation of histone acetylation during the day. It could be also established that photosynthetic performance might be regulated by NO-induced H3K9ac.
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NO is an important signaling molecule. However, the molecular mechanism underlying NO functions is not understood yet. The influence of NO on chromatin structure and its consequences on plants’ physiological functions were investigated in this thesis. Tendency towards enhanced histone 3 and 4 acetylation were observed in Arabidopsis seedlings after GSNO and INA treatment, which was likely mediated by inhibition of HDAs activity. HDA6 was identified as one of the NO-sensitive isoform. Furthermore...
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