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Salinity stress is a major challenge to agricultural productivity, affecting plant growth and development. Epigenetic mechanisms, including DNA methylation, histone modifications, and non-coding RNAs, play a pivotal role in the reprogramming of gene expression, enabling plants to adapt and tolerate high salinity conditions. DNA methylation, for instance, can suppress the expression of certain genes, while histone acetylation and methylation can either enhance or inhibit transcriptional activity. Non-coding RNAs, such as microRNAs and long non-coding RNAs, further modulate the stability and translation of mRNAs involved in stress responses. Moreover, transcription factors, including AP2/ERF, bZIP, NAC, MYB, and WRKY, are critical in regulating different stress-responsive genes associated with salinity stress. Under salinity stress, epigenetic changes can alter the binding affinity of transcription factors to their respective target genes, leading to either activation or repression of gene expression. This book chapter underscores the complexity of epigenetic crosstalk in transcriptional regulation of salinity stress tolerance and highlights the potential to harness these mechanisms for developing salt-tolerant crop varieties. Such advancements could significantly contribute to sustainable agriculture and global food security.

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Decoding the Dynamic Epigenetic Interplay in Plant Transcriptional Regulation Under Salinity Stress

  • 章节

  • 发表日期：

    2026年

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  • Samrat Banerjee,
  • Nibedita Chakraborty,
  • Arnab Mukherjee,
  • Pinaki Roy,
  • Suman Kumar Saha,
  • Debashis Oraon,
  • Shreyashi Nandi,
  • Sujit Roy

摘要

Salinity stress is a major challenge to agricultural productivity, affecting plant growth and development. Epigenetic mechanisms, including DNA methylation, histone modifications, and non-coding RNAs, play a pivotal role in the reprogramming of gene expression, enabling plants to adapt and tolerate high salinity conditions. DNA methylation, for instance, can suppress the expression of certain genes, while histone acetylation and methylation can either enhance or inhibit transcriptional activity. Non-coding RNAs, such as microRNAs and long non-coding RNAs, further modulate the stability and translation of mRNAs involved in stress responses. Moreover, transcription factors, including AP2/ERF, bZIP, NAC, MYB, and WRKY, are critical in regulating different stress-responsive genes associated with salinity stress. Under salinity stress, epigenetic changes can alter the binding affinity of transcription factors to their respective target genes, leading to either activation or repression of gene expression. This book chapter underscores the complexity of epigenetic crosstalk in transcriptional regulation of salinity stress tolerance and highlights the potential to harness these mechanisms for developing salt-tolerant crop varieties. Such advancements could significantly contribute to sustainable agriculture and global food security.