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Related Concept Videos

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Related Experiment Video

Updated: Jun 3, 2025

Light Sheet Fluorescence Microscopy of Plant Roots Growing on the Surface of a Gel
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Super-resolution expansion microscopy in plant roots.

Michelle Gallei1, Sven Truckenbrodt1, Caroline Kreuzinger1

  • 1Institute of Science and Technology Austria, Am Campus 1, Klosterneuburg 3400, Austria.

The Plant Cell
|January 10, 2025
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Summary
This summary is machine-generated.

Expansion microscopy (ExM) enhances imaging resolution in plants by physically expanding tissues. This technique, PlantEx, reveals intricate cellular structures in Arabidopsis roots, overcoming previous limitations.

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Area of Science:

  • Plant cell biology
  • Microscopy techniques
  • Molecular imaging

Background:

  • Super-resolution microscopy offers enhanced spatial resolution beyond the optical diffraction limit.
  • Widespread adoption in plants is limited by challenging optical properties and tissue rigidity.
  • Expansion microscopy (ExM) improves effective resolution by physical sample expansion.

Purpose of the Study:

  • To develop and apply whole-mount ExM for Arabidopsis thaliana root tissues (PlantEx).
  • To overcome the mechanical constraints of plant tissues for ExM application.
  • To achieve a significant resolution increase for visualizing subcellular structures in intact plant tissues.

Main Methods:

  • Whole-mount Expansion Microscopy (ExM) applied to Arabidopsis thaliana root tissues (PlantEx).
  • Integration of PlantEx with stimulated emission depletion (STED) microscopy.
  • Analysis of microtubule cytoskeleton organization and subcellular organelle interactions.

Main Results:

  • PlantEx achieved a 4-fold resolution increase over conventional microscopy in Arabidopsis roots.
  • Detailed visualization of microtubule cytoskeleton organization and cellular constituent interactions.
  • Nanoscale resolution imaging of COPI-coated vesicles associated with the Golgi apparatus in intact tissues.

Conclusions:

  • Expansion microscopy is a viable technique for enhancing imaging resolution in Arabidopsis root specimens.
  • PlantEx enables detailed investigation of plant cellular architecture and molecular organization.
  • The study demonstrates the potential of ExM for advancing plant cell biology research.