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Related Experiment Video

Updated: Feb 15, 2026

Use of Atomic Force Microscopy to Measure Mechanical Properties and Turgor Pressure of Plant Cells and Plant Tissues

Use of Atomic Force Microscopy to Measure Mechanical Properties and Turgor Pressure of Plant Cells and Plant Tissues

Published on: July 15, 2019

Introducing turgor-driven growth dynamics into functional-structural plant models.

Jonas R Coussement^1,2, Tom De Swaef², Peter Lootens²

¹Laboratory of Plant Ecology, Department of Applied Ecology and Environmental Biology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium.

Annals of Botany

|January 12, 2018

Summary

This summary is machine-generated.

Plant growth is often limited by water, not carbon. This study introduces a new model for functional-structural plant models (FSPMs) that links water dynamics and turgor pressure to organ growth, improving mechanistic understanding.

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Area of Science:

Plant Physiology
Computational Biology
Ecology

Background:

Plant growth is frequently constrained by water availability, not carbon assimilation.
Existing functional-structural plant models (FSPMs) often overlook the critical role of water status in organogenesis.
Organ growth is primarily driven by sink activity, where water availability is a key determinant.

Purpose of the Study:

To develop and integrate a turgor-driven growth concept into FSPMs.
To couple carbon and water dynamics for a more mechanistic understanding of plant development.
To improve FSPMs by incorporating plant water status and its influence on organogenesis.

Main Methods:

Adapted an existing process-based water flow and storage model for FSPMs.
Integrated water dynamics with carbon dynamics at the organ scale.
Applied the Lockhart equation to link turgor pressure to plant organ growth.

Main Results:

Successfully integrated mechanistic plant water transport with carbon dynamics in a developing plant architecture.
Enabled evaluation of organ-scale turgor pressure, revealing distinct diel and long-term growth patterns.
Demonstrated a direct link between turgor pressure and plant organ growth.

Conclusions:

Introduced a conceptual sap flow and turgor-driven growth model for FSPMs.
The model is applicable to diverse plant architectures and visualizes diel water content and growth patterns.
This approach offers new possibilities for FSPMs by formulating growth based on local processes and conditions.