Epigenetic control of plant senescence and linked processes
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TLDR
The review outlines the concept of epigenetic control of interconnected regulatory pathways steering stress responses and plant development and summarizes recent findings on global alterations in chromatin structure, histone and DNA modifications, and ATP-dependent chromatin remodelling during plant senescence and linked processes.Abstract:
Senescence processes are part of the plant developmental programme. They involve reprogramming of gene expression and are under the control of a complex regulatory network closely linked to other developmental and stressresponsive pathways. Recent evidence indicates that leaf senescence is regulated via epigenetic mechanisms. In the present review, the epigenetic control of plant senescence is discussed in the broader context of environmentsensitive plant development. The review outlines the concept of epigenetic control of interconnected regulatory pathways steering stress responses and plant development. Besides giving an overview of techniques used in the field, it summarizes recent findings on global alterations in chromatin structure, histone and DNA modifications, and ATPdependent chromatin remodelling during plant senescence and linked processes.read more
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Somatic embryogenesis - Stress-induced remodeling of plant cell fate.
TL;DR: The present knowledge on chromatin-based mechanisms potentially involved in the somatic-to-embryogenic developmental transition is summarized, emphasizing the potential role of the chromatin to integrate stress, hormonal, and developmental pathways leading to the activation of the embryogenic program.
Journal Article
Blocking histone deacetylation in Arabidopsis induces pleiotropic effects on plant gene regulation and development. [Erratum: June 19, 2001, v. 98 (13), p. 7647.]
TL;DR: In this article, AtHD1 expression and deacetylation profiles were associated with various developmental abnormalities, including early senescence, ectopic expression of silenced genes, suppression of apical dominance, homeotic changes, heterochronic shift toward juvenility, flower defects, and male and female sterility.
Journal ArticleDOI
Stress-induced structural changes in plant chromatin
TL;DR: This review highlights some of the most recent findings on nuclear reorganization, histone variants, hist one chaperones, DNA- and histone modifications, and somatic and meiotic heritability in connection with stress.
Journal ArticleDOI
Integration of multi-omics techniques and physiological phenotyping within a holistic phenomics approach to study senescence in model and crop plants.
TL;DR: This review addresses the need for the integration of multi-omics techniques and physiological phenotyping into holistic phenomics approaches to dissect the complex phenomenon of senescence and to elucidate the underlying molecular processes.
Journal ArticleDOI
Plant organ senescence - regulation by manifold pathways.
TL;DR: A universal nature of senescence is demonstrated, despite this process occurring in organs that have completely different functions, it is very similar; this will provide a powerful tool for plant physiology research.
References
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Journal ArticleDOI
Loss of DNA and euchromatin in senescing leaf cells of Allium
Achim Drumm,Walter Nagl +1 more
TL;DR: Electron-microscopic investigations have shown that the diffuse chromatin is lost from the nuclei, followed by shrinkage of the space left, which is suggestive of a programmed senescence in Allium leaves.
Journal ArticleDOI
An efficient immunodetection method for histone modifications in plants.
Geovanny I. Nic-Can,Sara Hernández-Castellano,Ángela Ku-González,Víctor M. Loyola-Vargas,Clelia De-la-Peña +4 more
TL;DR: The present method can be used to investigate the cellular distribution and localization of a wide array of proteins, which could help to clarify the biological role that they play at specific times and places in different tissues of various plant species.
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