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<p>Plant organ bending is a fundamental growth response shaped by hormonal regulation, cytoskeletal dynamics, and differential cell expansion. While widely explored in vegetative organs, similar processes drive the movement of reproductive structures, where functional outcomes directly influence pollination and reproductive success. Pistil movement, in particular, plays a central role in promoting outcrossing, regulating pollen deposition, and achieving spatial separation of sexual functions. This review synthesizes current understanding of the mechanisms and ecological significance of pistil bending, drawing on case studies from families such as Malvaceae, Passifloraceae, Zingiberaceae&#xa0;etc. The diversity of pistil movements is shown to correspond with pollinator behavior and habitat predictability, highlighting pistil motility as a finely tuned reproductive strategy. Finally, we outline key knowledge gaps, particularly regarding the cellular drivers of pistil motility and the genetic networks underlying its diversity, and propose future directions that integrate physiology, ecology, and evolutionary biology. Together, these perspectives underscore pistil movement as a model trait at the interface of plant development and reproductive ecology.</p>

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Dynamic Pistils: Mechanisms and Adaptive Significance of Pistil Bending

  • 期刊论文

  • 发表日期：

    2026年5月14日

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  • Puranamrita,
  • Susheel Verma,
  • Kamana Shandalaya

摘要

Plant organ bending is a fundamental growth response shaped by hormonal regulation, cytoskeletal dynamics, and differential cell expansion. While widely explored in vegetative organs, similar processes drive the movement of reproductive structures, where functional outcomes directly influence pollination and reproductive success. Pistil movement, in particular, plays a central role in promoting outcrossing, regulating pollen deposition, and achieving spatial separation of sexual functions. This review synthesizes current understanding of the mechanisms and ecological significance of pistil bending, drawing on case studies from families such as Malvaceae, Passifloraceae, Zingiberaceae etc. The diversity of pistil movements is shown to correspond with pollinator behavior and habitat predictability, highlighting pistil motility as a finely tuned reproductive strategy. Finally, we outline key knowledge gaps, particularly regarding the cellular drivers of pistil motility and the genetic networks underlying its diversity, and propose future directions that integrate physiology, ecology, and evolutionary biology. Together, these perspectives underscore pistil movement as a model trait at the interface of plant development and reproductive ecology.