Histone Acetylation Changes in Plant Response to Drought Stress

Li, Shuang; He, Xingjian; Gao, Yuan; Zhou, Chenguang; Chiang, Vincent L.; Li, Wei

doi:10.3390/genes12091409

Cited by 37 publications

(34 citation statements)

References 88 publications

(158 reference statements)

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“…This conclusion is also supported by previous reports in which HDACs play a critical role in regulating abiotic stress responses. For example, histone acetylation changes in plant responses to drought stress [ 35 ]. Arabidopsis HDA6 is required for freezing resistance [ 36 ] and salt stress [ 28 , 37 ].…”

Section: Discussionmentioning

confidence: 99%

Genome-Wide Analysis of the HDAC Gene Family and Its Functional Characterization at Low Temperatures in Tartary Buckwheat (Fagopyrum tataricum)

Hou

et al. 2022

IJMS

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Histone deacetylases (HDACs), widely found in various types of eukaryotic cells, play crucial roles in biological process, including the biotic and abiotic stress responses in plants. However, no research on the HDACs of Fagopyrum tataricum has been reported. Here, 14 putative FtHDAC genes were identified and annotated in Fagopyrum tataricum. Their gene structure, motif composition, cis-acting elements, phylogenetic relationships, protein structure, alternative splicing events, subcellular localization and gene expression pattern were investigated. The gene structure showed FtHDACs were classified into three subfamilies. The promoter analysis revealed the presence of various cis-acting elements responsible for hormone, abiotic stress and developmental regulation for the specific induction of FtHDACs. Two duplication events were identified in FtHDA6-1, FtHDA6-2, and FtHDA19. The expression patterns of FtHDACs showed their correlation with the flavonoid synthesis pathway genes. In addition, alternative splicing, mRNA enrichment profiles and transgenic analysis showed the potential role of FtHDACs in cold responses. Our study characterized FtHDACs, providing a candidate gene family for agricultural breeding and crop improvement.

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Section: Discussionmentioning

confidence: 99%

Genome-Wide Analysis of the HDAC Gene Family and Its Functional Characterization at Low Temperatures in Tartary Buckwheat (Fagopyrum tataricum)

Hou

et al. 2022

IJMS

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“…For example, acetylation of histone is found enriched in several cold-responsive genes ( Park et al, 2018 ). It is regulated dynamically by histone acetyltransferases ( HATs ) and histone deacetylases ( HDACs ) ( Li et al, 2021 ). In recent research, A. thaliana plants were exposed to cold stress, and overexpression of histone deacetylase 2D ( HD2D ) exhibited lower lipid peroxidation with decreased accumulation of malondialdehyde contents that eliminated the oxidative burst ( Han et al, 2016 ).…”

Section: Plant Epigenetic Changes and Regulation During Abiotic Stressesmentioning

confidence: 99%

Moving Beyond DNA Sequence to Improve Plant Stress Responses

Saeed

Chaudhry²,

Bakhsh³

et al. 2022

Front. Genet.

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Plants offer a habitat for a range of interactions to occur among different stress factors. Epigenetics has become the most promising functional genomics tool, with huge potential for improving plant adaptation to biotic and abiotic stresses. Advances in plant molecular biology have dramatically changed our understanding of the molecular mechanisms that control these interactions, and plant epigenetics has attracted great interest in this context. Accumulating literature substantiates the crucial role of epigenetics in the diversity of plant responses that can be harnessed to accelerate the progress of crop improvement. However, harnessing epigenetics to its full potential will require a thorough understanding of the epigenetic modifications and assessing the functional relevance of these variants. The modern technologies of profiling and engineering plants at genome-wide scale provide new horizons to elucidate how epigenetic modifications occur in plants in response to stress conditions. This review summarizes recent progress on understanding the epigenetic regulation of plant stress responses, methods to detect genome-wide epigenetic modifications, and disentangling their contributions to plant phenotypes from other sources of variations. Key epigenetic mechanisms underlying stress memory are highlighted. Linking plant response with the patterns of epigenetic variations would help devise breeding strategies for improving crop performance under stressed scenarios.

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“…HAT genes TaHAG2 , TaHAG3 , and TaHAC2 were induced under drought stress in a wheat variety called BN207, but not in other varieties with lower drought resistance. Li et al [ 28 ] reported that, in soybean, drought treatment decreased expression levels of nine GmHDAC genes ( GmHDA6 , GmHDA8 , GmHDA13 , GmHDA14 , GmHDA16 , GmSRT2 , GmSRT4 , GmHDT2 , and GmHDT4 ).…”

Section: Acetylationmentioning

confidence: 99%

Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants

Dar

Mushtaq

Saleem

et al. 2022

International Journal of Genomics

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Plants being sessile are always exposed to various environmental stresses, and to overcome these stresses, modifications at the epigenetic level can prove vital for their long-term survival. Epigenomics refers to the large-scale study of epigenetic marks on the genome, which include covalent modifications of histone tails (acetylation, methylation, phosphorylation, ubiquitination, and the small RNA machinery). Studies based on epigenetics have evolved over the years especially in understanding the mechanisms at transcriptional and posttranscriptional levels in plants against various environmental stimuli. Epigenomic changes in plants through induced methylation of specific genes that lead to changes in their expression can help to overcome various stress conditions. Recent studies suggested that epigenomics has a significant potential for crop improvement in plants. By the induction and modulation of various cellular processes like DNA methylation, histone modification, and biogenesis of noncoding RNAs, the plant genome can be activated which can help in achieving a quicker response against various plant stresses. Epigenetic modifications in plants allow them to adjust under varied environmental stresses by modulating their phenotypic plasticity and at the same time ensure the quality and yield of crops. The plasticity of the epigenome helps to adapt the plants during pre- and postdevelopmental processes. The variation in DNA methylation in different organisms exhibits variable phenotypic responses. The epigenetic changes also occur sequentially in the genome. Various studies indicated that environmentally stimulated epimutations produce variable responses especially in differentially methylated regions (DMR) that play a major role in the management of stress conditions in plants. Besides, it has been observed that environmental stresses cause specific changes in the epigenome that are closely associated with phenotypic modifications. However, the relationship between epigenetic modifications and phenotypic plasticity is still debatable. In this review, we will be discussing the role of various factors that allow epigenetic changes to modulate phenotypic plasticity against various abiotic stress in plants.

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Histone Acetylation Changes in Plant Response to Drought Stress

Cited by 37 publications

References 88 publications

Genome-Wide Analysis of the HDAC Gene Family and Its Functional Characterization at Low Temperatures in Tartary Buckwheat (Fagopyrum tataricum)

Genome-Wide Analysis of the HDAC Gene Family and Its Functional Characterization at Low Temperatures in Tartary Buckwheat (Fagopyrum tataricum)

Moving Beyond DNA Sequence to Improve Plant Stress Responses

Role of Epigenetics in Modulating Phenotypic Plasticity against Abiotic Stresses in Plants

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