🔒 Mechanosensitive Control of Plant Growth

Talking Trees

Subscriber-only episode

In this episode of Talking Trees, we explore the fascinating world of mechanosensitive control in plant growth—how trees and plants perceive, respond to, and even adapt to mechanical forces from their surroundings and their own structure.

We discuss:

• Mechanosensing basics – How plants detect tension, compression, and mechanical strain at the cellular level.
• Plant biomechanics – The role of load-bearing structures like stems and shoot apical meristems in shaping plant form and development.
• Molecular responses – Insights into mechanoreceptors, gene expression, and signaling pathways that regulate growth in response to stress.
• Adaptive strategies – How trees respond to wind, gravity, and pruning through reaction wood formation and growth redirection.
• Interdisciplinary models – How combining biological research with physics and engineering enhances our understanding of plant behavior.

This episode highlights how integrating biomechanics and plant biology allows arborists to better understand how trees grow, recover, and adapt to their environment—essential knowledge for modern, science-informed tree care.

Background information:

• Mechanosensitive Control of Plant Growth.pdf

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Chapters

1. Mechanosensitive Control of Plant Growth (00:00:00)

2. Introduction to Plant Mechanobiology (00:00:02)

3. Mechanical Loads and Tree Structure (00:02:10)

4. The Shoot Apical Meristem (SAM) (00:03:50)

5. How Trees Sense Mechanical Strain (00:05:33)

6. Tree Memory and Adaptation (00:07:36)

7. Practical Applications for Arborists (00:10:23)

8. Episode Conclusion (00:14:10)