<p>Plant responses to abiotic stress are characterized by a complex interaction of genetic and epigenetic systems that orchestrate adaptive strategies that are critical for survival and resilience. This in-depth examination of plant epigenetics in the context of abiotic environmental challenges focused on drought, temperature extremes, and salt. This investigation included DNA methylation patterns, histone modifications, hormone control, and the increasing significance of non-coding RNAs, resulting in a comprehensive understanding of how plants dynamically adapt to difficult situations. According to whole-genome bisulfite sequencing research, plant DNA methylation patterns change during drought stress, according to whole-genome bisulfite sequencing (WGBS) research. In conjunction with gene control systems, the temporal dynamics of these alterations illustrate the profound adaptation of plants to the various stages of stress. Histone modifications such as acetylation and ubiquitination add to the epigenetic landscape with specialized enzymes and hormone signals that delicately control these changes. Extreme temperatures cause twin difficulties during cold and heat stresses, resulting in unique epigenetic responses. Cold tolerance is characterized by a complex interplay between DNA methylation, histone changes, and jasmonate signalling, highlighting the complexities of plant responses. Heat stress causes dynamic changes in histone acetylation, methylation, and salicylic acid participation, shedding light on the interrelated regulatory networks. Stresses caused by salinity- and soil-related problems reveal DNA methylation responses and chromatin remodeling, highlighting a broad range of epigenetic adaptations. The integration of the cross-regulatory processes between DNA methylation and histone changes acts as a nexus, providing prospective targets for epigenomic manipulation to improve stress tolerance. This investigation extends to transgenerational epigenetic inheritance, in which paternal and maternal contributions affect the molecular memory of stress responses, laying the groundwork for understanding the adaptive features in offspring. Technological advances such as single-cell epigenomics and real-time monitoring have shed light on the spatial and temporal aspects of epigenetic modifications.</p>

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A critical review on epigenetics and epigenomics in plant development and stress resilience

  • Ekambaram Gayathiri,
  • Dhivya Viswanathan,
  • Palanisamy Prakash,
  • Saravanan Pandiaraj,
  • Benod Kumar Kondapavuluri,
  • Carmelin Durai Singh,
  • Rekha Thiruvengadam,
  • Sridevi Balu,
  • Rekha Anantharaman,
  • Arti Gaur,
  • Rajakumar Govindasamy,
  • Muthu Thiruvengadam

摘要

Plant responses to abiotic stress are characterized by a complex interaction of genetic and epigenetic systems that orchestrate adaptive strategies that are critical for survival and resilience. This in-depth examination of plant epigenetics in the context of abiotic environmental challenges focused on drought, temperature extremes, and salt. This investigation included DNA methylation patterns, histone modifications, hormone control, and the increasing significance of non-coding RNAs, resulting in a comprehensive understanding of how plants dynamically adapt to difficult situations. According to whole-genome bisulfite sequencing research, plant DNA methylation patterns change during drought stress, according to whole-genome bisulfite sequencing (WGBS) research. In conjunction with gene control systems, the temporal dynamics of these alterations illustrate the profound adaptation of plants to the various stages of stress. Histone modifications such as acetylation and ubiquitination add to the epigenetic landscape with specialized enzymes and hormone signals that delicately control these changes. Extreme temperatures cause twin difficulties during cold and heat stresses, resulting in unique epigenetic responses. Cold tolerance is characterized by a complex interplay between DNA methylation, histone changes, and jasmonate signalling, highlighting the complexities of plant responses. Heat stress causes dynamic changes in histone acetylation, methylation, and salicylic acid participation, shedding light on the interrelated regulatory networks. Stresses caused by salinity- and soil-related problems reveal DNA methylation responses and chromatin remodeling, highlighting a broad range of epigenetic adaptations. The integration of the cross-regulatory processes between DNA methylation and histone changes acts as a nexus, providing prospective targets for epigenomic manipulation to improve stress tolerance. This investigation extends to transgenerational epigenetic inheritance, in which paternal and maternal contributions affect the molecular memory of stress responses, laying the groundwork for understanding the adaptive features in offspring. Technological advances such as single-cell epigenomics and real-time monitoring have shed light on the spatial and temporal aspects of epigenetic modifications.