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Epigenetic Landmarks of Leaf Senescence and Crop Improvement.

Ostrowska-Mazurek, Agnieszka and Kasprzak, Piotr and Kubala, Szymon and Zaborowska, Magdalena and Sobieszczuk-Nowicka, Ewa (2020) Epigenetic Landmarks of Leaf Senescence and Crop Improvement. International Journal of Molecular Sciences, 21 (14). p. 5125.


Official URL: https://www.mdpi.com/1422-0067/21/14/5125


This review synthesizes knowledge on epigenetic regulation of leaf senescence and discusses the possibility of using this knowledge to improve crop quality. This control level is implemented by different but interacting epigenetic mechanisms, including DNA methylation, covalent histone modifications, and non-covalent chromatin remodeling. The genetic and epigenetic changes may act alone or together and regulate the gene expression, which may result in heritable (stress memory) changes and may lead to crop survival. In the review, the question also arises whether the mitotically stable epigenetic information can be used for crop improvement. The barley crop model for early and late events of dark-induced leaf senescence (DILS), where the point of no return was defined, revealed differences in DNA and RNA modifications active in DILS compared to developmental leaf senescence. This suggests the possibility of a yet-to-be-discovered epigenetic-based switch between cell survival and cell death. Conclusions from the analyzed research contributed to the hypothesis that chromatin-remodeling mechanisms play a role in the control of induced leaf senescence. Understanding this mechanism in crops might provide a tool for further exploitation toward sustainable agriculture: so-called epibreeding.

Item Type:Article
Subjects:Q Science > QK Botany
Q Science > QP Physiology
S Agriculture > SB Plant culture
Divisions:Department of Protein Biosynthesis
ID Code:1962
Deposited By: PhD Szymon Kubala
Deposited On:11 Jan 2021 14:58
Last Modified:11 Jan 2021 14:58

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