Related Experiment Video
Updated: Jul 30, 2025
05:51
Atomic Force Microscopy to Study the Physical Properties of Epidermal Cells of Live Arabidopsis Roots
Published on: March 31, 2022
2.2K
Measuring external primary cell wall elasticity of seedling roots using atomic force microscopy.
Harinderbir Kaur1, Jean-Marie Teulon1, Anne-Emmanuelle Foucher1
1Univ. Grenoble Alpes, CEA, CNRS, IBS, 38000 Grenoble, France.
STAR Protocols
|May 18, 2023
Summary
This study details a method for measuring plant root cell wall stiffness using atomic force microscopy (AFM). The protocol enables researchers to quantify mechanical properties crucial for plant cell extension.
Area of Science:
- Plant Biology
- Biophysics
- Cellular Mechanics
Background:
- Plant cell wall stiffness is a critical factor regulating cell expansion.
- Quantifying cell wall mechanical properties in living plant tissues remains challenging.
Purpose of the Study:
- To present a standardized protocol for measuring the stiffness of the external epidermal cell wall of living plant roots.
- To enable researchers to detect changes in cell wall stiffness using atomic force microscopy (AFM).
Main Methods:
- Utilized atomic force microscopy (AFM) to perform indentation experiments on plant roots.
- Collected force-distance curves from the external epidermal cell wall.
- Analyzed stiffness using a contact-based mechanical model.
Main Results:
- Successfully developed a protocol for stiffness measurement on living plant roots.
- Demonstrated the ability to determine stiffness properties of 4- and 5-day-old Arabidopsis thaliana roots.
Conclusions:
- The presented AFM protocol provides a reliable method for assessing plant root cell wall mechanical properties.
- This protocol facilitates the study of how stiffness influences plant cell extension and development.
