Epigenetic regulation in plant abiotic stress responses.

Ya-Nan Chang, Chen Zhu, Jing Jiang, Huiming Zhang, Jian-Kang Zhu, Cheng-Guo Duan

Journal: Journal of integrative plant biology 2021;62(5):563-580

PMID: 31872527

Abstract

In eukaryotic cells, gene expression is greatly influenced by the dynamic chromatin environment. Epigenetic mechanisms, including covalent modifications to DNA and histone tails and the accessibility of chromatin, create various chromatin states for stress-responsive gene expression that is important for adaptation to harsh environmental conditions. Recent studies have revealed that many epigenetic factors participate in abiotic stress responses, and various chromatin modifications are changed when plants are exposed to stressful environments. In this review, we summarize recent progress on the cross-talk between abiotic stress response pathways and epigenetic regulatory pathways in plants. Our review focuses on epigenetic regulation of plant responses to extreme temperatures, drought, salinity, the stress hormone abscisic acid, nutrient limitations and ultraviolet stress, and on epigenetic mechanisms of stress memory.

Address: Shanghai Center for Plant Stress Biology and Center of Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China.; University of Chinese Academy of Sciences, Beijing, 100049, China.; Shanghai Center for Plant Stress Biology and Center of Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China.; State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China.; Shanghai Center for Plant Stress Biology and Center of Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China.; State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, 475004, China.; Shanghai Center for Plant Stress Biology and Center of Excellence in Molecular Plant Sciences, Chinese Academy of Sciences, Shanghai, 201602, China.; Department of Horticulture and Landscape Architecture, Purdue University, West Lafayette, IN, 47907, USA.

DOI: 10.1111/jipb.12901

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https://doi.org/10.1111/jipb.12901

MeSH Terms: Chromatin Assembly and Disassembly, Epigenesis, Genetic, Gene Expression Regulation, Plant, Stress, Physiological