Scholarlink

<p>As a key signaling molecule in plants in response to drought stress, ABA activates a complex downstream signaling network by specifically binding to members of the PYL protein family. In turn, it precisely regulates physiological processes such as stomatal closure, leaf senescence, water use efficiency, and osmotic adjustment, significantly improving plant drought tolerance. This paper describes the central role of PYL receptors in enhancing drought tolerance in plants by increasing their sensitivity to ABA (abscisic acid) and the mechanisms involved. In addition, the synergistic action of PYL and ABA also mediated the induction of growth inhibition and dormancy in plants, allowing them to adopt adaptive growth strategies to slow metabolic rates and store energy under drought conditions. Nevertheless, the synergistic effect of PYL and ABA also inhibits the drought resistance of plants. This review aims to deepen the understanding of the molecular mechanism by which PYL and ABA synergistically regulate drought resistance in plants and to provide a theoretical basis and practical way for the use of genetic engineering technology to improve drought resistance in crops.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Synergistic Enhancement of Plant Drought Tolerance by PYL and ABA—A Review

  • 期刊论文

  • 发表日期：

    2025年8月4日

查看全文
  • Rongrong Zhang,
  • Shilei Luo,
  • Long Li,
  • Tingting Mu,
  • Peng Wang,
  • Guobin Zhang

摘要

As a key signaling molecule in plants in response to drought stress, ABA activates a complex downstream signaling network by specifically binding to members of the PYL protein family. In turn, it precisely regulates physiological processes such as stomatal closure, leaf senescence, water use efficiency, and osmotic adjustment, significantly improving plant drought tolerance. This paper describes the central role of PYL receptors in enhancing drought tolerance in plants by increasing their sensitivity to ABA (abscisic acid) and the mechanisms involved. In addition, the synergistic action of PYL and ABA also mediated the induction of growth inhibition and dormancy in plants, allowing them to adopt adaptive growth strategies to slow metabolic rates and store energy under drought conditions. Nevertheless, the synergistic effect of PYL and ABA also inhibits the drought resistance of plants. This review aims to deepen the understanding of the molecular mechanism by which PYL and ABA synergistically regulate drought resistance in plants and to provide a theoretical basis and practical way for the use of genetic engineering technology to improve drought resistance in crops.