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<p>Plant survival in a changing environment relies on the balanced interaction between their stress adaptation mechanisms and growth processes. The <i>miR396–GRF4</i> module is found to be a central regulatory pathway which involved in the stress adaptation, plant growth and development, mainly by altering the expression of the GRF gene family, among them<i> GRF4</i> is most important one which controls organ growth, cell differentiation and hormone signalling. Understanding the function of <i>miR396</i> and <i>GRF4</i> provides valuable insight into plant responses to abiotic stresses such as drought, salinity and extreme temperature fluctuations. Specifically, <i>miR396</i> assists in fine-tuning the different stress responses through modulating the expression of certain target genes. In addition, the regulatory cross talk between <i>miR396</i>, <i>GRF4</i> and stress-responsive elements reveal the molecular processes governing stress tolerance traits. Therefore, the research on these pathways is crucial for developing crop varieties capable of surviving nutrient stress and environmental stresses. The module regulated by the <i>miR396–GRF4</i> pathway highlights the significance of hormonal interactions in shaping plant responses to both endogenous and exogenous stimuli. Plant hormones such as auxins, gibberellins, and cytokinin play pivotal roles in contributing to the plant growth and stress responses, further reinforcing the significance of <i>miR396</i> and <i>GRF4</i> in signals integration. This regulatory framework elucidates the mechanisms through which plants balance growth with survival strategies, allowing them to tackle environmental challenges. Through the investigation of this complex relationship, researchers can explore ways to enhance the <i>miR396–GRF4</i> module to develop stress resilient crops. Such insights will be helpful in sustaining agricultural productivity in the face of ongoing environmental challenges.</p>

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Elucidating the functional mechanisms of the miR396–GRF4 pathway in rice development and stress response

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月16日

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  • Raj Kishore Sahoo,
  • Nibedita Swain,
  • Nihar Ranjan Singh,
  • Sudhanshu Sekhar Bhuyan,
  • C. Parameswaran,
  • Sanghamitra Samantaray

摘要

Plant survival in a changing environment relies on the balanced interaction between their stress adaptation mechanisms and growth processes. The miR396–GRF4 module is found to be a central regulatory pathway which involved in the stress adaptation, plant growth and development, mainly by altering the expression of the GRF gene family, among them GRF4 is most important one which controls organ growth, cell differentiation and hormone signalling. Understanding the function of miR396 and GRF4 provides valuable insight into plant responses to abiotic stresses such as drought, salinity and extreme temperature fluctuations. Specifically, miR396 assists in fine-tuning the different stress responses through modulating the expression of certain target genes. In addition, the regulatory cross talk between miR396, GRF4 and stress-responsive elements reveal the molecular processes governing stress tolerance traits. Therefore, the research on these pathways is crucial for developing crop varieties capable of surviving nutrient stress and environmental stresses. The module regulated by the miR396–GRF4 pathway highlights the significance of hormonal interactions in shaping plant responses to both endogenous and exogenous stimuli. Plant hormones such as auxins, gibberellins, and cytokinin play pivotal roles in contributing to the plant growth and stress responses, further reinforcing the significance of miR396 and GRF4 in signals integration. This regulatory framework elucidates the mechanisms through which plants balance growth with survival strategies, allowing them to tackle environmental challenges. Through the investigation of this complex relationship, researchers can explore ways to enhance the miR396–GRF4 module to develop stress resilient crops. Such insights will be helpful in sustaining agricultural productivity in the face of ongoing environmental challenges.