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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Arabidopsis MET1 Cytosine Methyltransferase Mutants
Mark W. Kankel,Douglas E. Ramsey,Trevor Stokes,Susan K. Flowers,Jeremy R. Haag,Jeffrey A. Jeddeloh,Nicole C. Riddle,Michelle L. Verbsky,Eric J. Richards +8 more
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Activation of plant retrotransposons under stress conditions
TL;DR: The transcriptional activation of several well-characterized plant retrotransposons seems to be tightly linked to molecular pathways activated by stress, and activation is under the control of cis -regulatory sequences strikingly similar to those of plant defence genes, suggesting that retro transposons could evolve through modification of their regulatory features.
Journal ArticleDOI
Transcription Analysis of Arabidopsis Membrane Transporters and Hormone Pathways during Developmental and Induced Leaf Senescence
Eric van der Graaff,Rainer Schwacke,Anja Schneider,Marcelo Desimone,Ulf-Ingo Flügge,Reinhard Kunze +5 more
TL;DR: A comparative transcriptome analysis for successive stages of Arabidopsis developmental leaf senescence (NS), darkening-induced Senescence of individual leaves attached to the plant (DIS), andsenescence in dark-incubated detached leaves (DET) revealed many novel senescENCE-associated genes with distinct expression profiles.
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Histone methylation in higher plants
TL;DR: The aim of this review is to summarize the biochemical, genetic, and molecular action of histone methylation in two plants, the dicot Arabidopsis and the monocot rice.
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