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<p>Soil compaction and escalating global drought increase soil strength and stiffness. It remains unclear which plant root biomechanical mechanisms/traits enable growth in these harsh conditions. Here, we combine synchrotron X-ray computed tomography with spatially resolved X-ray diffraction to characterize the biomechanics of a replica root-soil system. We map the strain field around the root tip analog, finding strong agreement with finite element simulations, thereby demonstrating a promising new in vivo measurement protocol.</p>

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Coupled X-ray imaging/diffraction reveals soil mechanics during analogous root growth

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月3日

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  • James Le Houx,
  • Daniel McKay Fletcher,
  • Alberto Leonardi,
  • Katherine A. Williams,
  • Nancy Walker,
  • Fernando Alvarez-Borges,
  • Ebrahim Afsar Dizaj,
  • Madhu Murthy,
  • Ronan Smith,
  • Liam Perera,
  • Navid Aslani,
  • Andrew James,
  • Sharif Ahmed,
  • Tiina Roose,
  • Siul Ruiz

摘要

Soil compaction and escalating global drought increase soil strength and stiffness. It remains unclear which plant root biomechanical mechanisms/traits enable growth in these harsh conditions. Here, we combine synchrotron X-ray computed tomography with spatially resolved X-ray diffraction to characterize the biomechanics of a replica root-soil system. We map the strain field around the root tip analog, finding strong agreement with finite element simulations, thereby demonstrating a promising new in vivo measurement protocol.