Arabidopsis linker histones in stress responses - global transcriptomic analyses

Andrzej Jerzmanowski

H1 or linker histones are basic chromatin proteins with a highly conserved centrally placed globular domain (GH1), a short basic N-terminal tail and a considerably longer and highly positively charged C terminal tail. They are thought to be involved in stabilization of chromatin structure and have been postulated to have a role in fine-tuning transcriptional activity. We use Arabidopsis thaliana, a model organism in plant biology, to dissect H1 histones involvement in plant responses to environmental stimuli. I will present data of biochemical and transcriptomic analyses that reveal the possible role of these proteins in modulation of chromatin structure during low-light and drought stress.