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Related Concept Videos

Accessory Structures of the Skin: Nails01:05

Accessory Structures of the Skin: Nails

Nails are one of the important accessory structures of the skin. They are hard, protective structures that cover the dorsal surface of the distal phalanges of fingers and toes. Nails are composed of specialized keratinized cells and serve various functions, including protection, sensation, and manual dexterity.
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Related Experiment Video

Updated: Jun 12, 2026

Isolation and Biophysical Study of Fruit Cuticles
15:53

Isolation and Biophysical Study of Fruit Cuticles

Published on: March 30, 2012

FERONIA defines intact tissue boundaries through cuticle development.

Gayeon Kim1,2, Jeongho Choi3, Ryeo Jin Kim3

  • 1Plant Systems Engineering Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea.

Nature Communications
|June 10, 2026
PubMed
Summary

The FERONIA receptor-like kinase promotes plant cuticle development, limiting wound-induced reactive oxygen species (ROS) and preventing excessive callus formation. This discovery highlights the cuticle

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Area of Science:

  • Plant biology
  • Molecular signaling
  • Wound healing mechanisms

Background:

  • The plant cuticle acts as a primary hydrophobic barrier against environmental factors.
  • Wound healing in plants involves cuticle or callus formation, but underlying signaling is unclear.
  • Reactive oxygen species (ROS) are implicated in wound responses, including callus formation.

Purpose of the Study:

  • To elucidate signaling pathways governing cuticle development and callus formation post-wounding.
  • To investigate the role of FERONIA receptor-like kinase in plant wound responses.
  • To understand how cuticle integrity influences ROS propagation and tissue repair.

Main Methods:

  • Investigated the function of FERONIA receptor-like kinase in epidermal cuticle development.
  • Assessed the impact of cuticle defects on ROS production and callus formation.
  • Analyzed the role of mesophyll-derived cuticle in suppressing ROS propagation near wounds.

Main Results:

  • FERONIA facilitates epidermal cuticle development, which restricts ROS propagation.
  • Cuticle defects lead to increased NADPH oxidase-dependent ROS production and uncontrolled callus formation.
  • Mesophyll cuticle near wounds suppresses ROS, preventing aberrant callus growth and initiating localized programmed cell death.

Conclusions:

  • FERONIA-mediated cuticle formation is crucial for limiting ROS and regulating callus development.
  • The plant cuticle plays a vital defensive role in aerial tissues, maintaining the integrity of undamaged regions.
  • Findings offer insights into cuticle's function in wound response and tissue homeostasis.