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Title: Epigenetic chromatin modifications in barley after mutagenic treatment
Authors: Brąszewska-Zalewska, Agnieszka
Tylikowska, Marta
Kwaśniewska, Jolanta
Szymanowska-Pułka, Joanna
Keywords: Barley; epigenetic modifications; Gamma ray; maleic acid hydrazide; immunostaining; image cytometry
Issue Date: 2014
Citation: Journal of Applied Genetics, Vol. 55, iss. 4 (2014), s. 449-456
Abstract: In addition to their normal developmental processes, plants have evolved complex genetic and epigenetic regulatory mechanisms to cope with various environmental stresses. It has been shown that both DNA methylation and histone modifications are involved in DNA damage response to various types of stresses. In this study, we focused on the involvement of two mutagenic agents, chemical (maleic acid hydrazide; MH) and physical (gamma rays), on the global epigenetic modifications of chromatin in barley. Our results indicate that both mutagens strongly influence the level of histone methylation and acetylation. Moreover, we found that gamma irradiation, in contrast to MH, has a more robust influence on the DNA methylation level. This is the first study that brings together mutagenic treatment along with its impact at the level of epigenetic modifications examined using the immunohistochemical method.
DOI: 10.1007/s13353-014-0226-9
ISSN: 1234-1983
Appears in Collections:Artykuły (WNP)

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