Abstract
Exposure of plants to adverse environmental conditions leads to extensive transcriptional changes. Genome-wide approaches and gene function studies have revealed the importance of chromatin-level control in the regulation of stress-responsive gene expression. Advances in understanding chromatin modifications implicated in plant stress response and identifying proteins involved in chromatin-mediated transcriptional responses to stress are briefly presented in this review. We then highlight how chromatin-mediated gene expression changes can be coupled to the metabolic status of the cell, since many of the chromatin-modifying proteins involved in transcriptional regulation depend on cofactors and metabolites that are shared with enzymes in basic metabolism. Lastly, we discuss the stability and heritability of stress-induced chromatin changes and the potential of chromatin-based strategies for increasing stress tolerance of crops.
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Acknowledgments
Work in the authors’ laboratories is supported by the French National Research Agency (Grant ANR 2010 JCJC 1205 01 to CL), the Swedish research councils VR and FORMAS and the Knut-and-Alice-Wallenberg foundation (to LH). We thank Dr. Ben Field and the anonymous reviewers for critical reading and helpful comments on the manuscript.
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Vriet, C., Hennig, L. & Laloi, C. Stress-induced chromatin changes in plants: of memories, metabolites and crop improvement. Cell. Mol. Life Sci. 72, 1261–1273 (2015). https://doi.org/10.1007/s00018-014-1792-z
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DOI: https://doi.org/10.1007/s00018-014-1792-z