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How do plants read their own shapes?

Olivier Hamant1, Bruno Moulia2

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Summary
This summary is machine-generated.

Shape sensing, or proprioception, is crucial for reproducible development. This process uses mechanical stress and strain to ensure consistent biological shapes across cell, tissue, and organism scales, integrating with external cues.

Keywords:
curvaturefeedbackgrowthmechanical stressmorphogenesisproprioceptionshape

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Area of Science:

  • Developmental Biology
  • Biophysics
  • Mechanobiology

Background:

  • Historically, shape sensing guided animal locomotion.
  • Currently, it is increasingly vital in developmental biology.
  • Proprioception is key to understanding shape reproducibility.

Purpose of the Study:

  • To explore the role of proprioception in morphogenesis.
  • To highlight the mechanistic involvement of shape-derived mechanical stress and strain.
  • To examine the integration of shape sensing with external cues.

Main Methods:

  • Review of existing literature on shape sensing and morphogenesis.
  • Analysis of feedback mechanisms involving geometrical and mechanical cues.
  • Case studies across cellular, tissue, and organismal scales.

Main Results:

  • Shape sensing restricts diverse growth outputs to limited forms.
  • Mechanical feedback, including stress and strain, enhances morphogenesis robustness.
  • Synergies observed between proprioception and responses to external stimuli like wind and gravity.

Conclusions:

  • Proprioception provides robustness to developmental processes.
  • Understanding the molecular basis of proprioception is achievable.
  • This opens avenues for an integrative view of development.