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Related Experiment Video

Updated: Jun 13, 2025

Kinematic Analysis of Cell Division and Expansion: Quantifying the Cellular Basis of Growth and Sampling Developmental Zones in Zea mays Leaves

Kinematic Analysis of Cell Division and Expansion: Quantifying the Cellular Basis of Growth and Sampling Developmental Zones in Zea mays Leaves

Published on: December 2, 2016

Proliferation symmetry breaking in growing tissues.

Xinzhi Li¹, Aniruddha Datta¹, Shiladitya Banerjee¹

¹Department of Physics, Carnegie Mellon University, Pittsburgh, PA, USA.

Biorxiv : the Preprint Server for Biology

|September 16, 2024

Summary

This study presents a new model for tissue growth, showing how cell alignment, pressure, and division can drive anisotropic morphogenesis without relying solely on gene expression. This offers insights into controlling tissue development.

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Area of Science:

Developmental Biology
Biophysics
Cell Biology

Background:

Tissue morphogenesis typically relies on polarized gene expression for anisotropic growth.
Understanding alternative mechanisms driving directional tissue expansion is crucial.

Purpose of the Study:

To propose and investigate a novel model for anisotropic tissue growth.
To explore the role of self-organized feedback between cell polarity, mechanical pressure, and division rates.

Main Methods:

Theoretical modeling of cell-tissue interactions.
Simulation of cell polarity alignment and its effect on proliferation.
Analysis of mechanical pressure distribution within the tissue.

Main Results:

Cell polarity alignment can spontaneously break symmetry in cell proliferation.
Anisotropic proliferation arises from the anisotropic distribution of mechanical pressure.
Cellular elasticity, motility, and contact inhibition influence proliferation anisotropy.

Conclusions:

Self-organized feedback loops offer an alternative mechanism for anisotropic morphogenesis.
This model provides design principles for controlling tissue development and growth patterns.