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Updated: Jun 20, 2026

Improved Methods for Preparing Transverse Sections and Unrolled Whole Mounts of Maize Leaf Primordia for Fluorescence and Confocal Imaging

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Published on: September 22, 2023

How to grow a leaf: Generating, maintaining, and modulating flatness.

Alexis De Carufel¹, Elvis Branchini¹, Marja C P Timmermans²

¹Institut de Recherche en Biologie Végétale, Département de Sciences Biologiques, Université de Montréal, Montréal, Canada.

Current Opinion in Plant Biology

|June 18, 2026

Summary

This summary is machine-generated.

Leaf flatness, crucial for plant evolution, arises from coordinated growth, molecular patterns, and tissue mechanics. Understanding these interactions is key to plant development and morphogenesis research.

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Area of Science:

Plant developmental biology
Morphogenesis
Biophysics

Background:

Flat leaf architecture is a key evolutionary trait in vascular plants, optimizing photosynthesis via enhanced light capture and gas exchange.
Leaf development involves precise spatial and temporal coordination of growth, presenting a significant developmental challenge.
The thin, expanding nature of leaves makes them susceptible to mechanical conflicts like bending and buckling during growth.

Purpose of the Study:

To synthesize recent advances in understanding the molecular and mechanical factors governing leaf flatness.
To explore the interplay between molecular patterning, tissue mechanics, and coordinated growth in generating and maintaining leaf shape.
To identify key open questions in the field of laminar organ morphogenesis.

Main Methods:

Review of current literature on plant leaf development.
Synthesis of research on molecular signaling pathways involved in organogenesis.
Analysis of biomechanical principles governing thin expanding structures.
Integration of studies on growth coordination across different tissue domains.

Main Results:

Leaf flatness is achieved through a complex interplay of molecular patterning, tissue mechanics, and coordinated growth.
Mechanical conflicts arising from differential growth rates are actively managed during leaf development.
Understanding these interactions provides insights into how specific leaf shapes are generated and maintained.
Recent advances highlight the role of gene regulation and physical forces in directing morphogenesis.

Conclusions:

The generation and maintenance of leaf flatness is a multifaceted process involving intricate molecular and mechanical regulation.
Further research is needed to fully elucidate the complex interactions governing laminar organ morphogenesis.
Addressing open questions in this field will advance our understanding of plant development and evolutionary adaptations.