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In a multicellular organism, cells must communicate to work together in a coordinated manner. One way that cells communicate is through direct contact with other cells. The points of contact that connect adjacent cells are called intercellular junctions.
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The organs in a multicellular organism’s body are made up of tissues formed by cells. To work together cohesively, cells must communicate. One way that cells communicate is through direct contact with other cells. The points of contact that connect adjacent cells are called intercellular junctions.
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Imaging plasmodesmata with high-resolution scanning electron microscopy.

Deborah A Barton1, Robyn L Overall

  • 1School of Biological Sciences, University of Sydney, Macleay Building A12, Sydney, NSW, 2006, Australia.

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|October 8, 2014
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Summary
This summary is machine-generated.

High-resolution scanning electron microscopy (HRSEM) offers a faster, simpler method for visualizing plant cell wall plasmodesmata in 3D. This technique bypasses complex sample preparation needed for transmission electron microscopy (TEM).

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Area of Science:

  • Plant Biology
  • Microscopy Techniques
  • Cell Biology

Background:

  • Plasmodesmata are crucial for cell-to-cell communication in plants.
  • Traditional transmission electron microscopy (TEM) requires complex sectioning for plasmodesmata visualization.
  • Investigating plasmodesmata architecture and distribution is vital for understanding plant development.

Purpose of the Study:

  • To present optimized methods for preparing plant samples for high-resolution scanning electron microscopy (HRSEM).
  • To highlight HRSEM as an effective alternative to TEM for studying plasmodesmata.
  • To enable visualization of plasmodesmata within plant cell walls.

Main Methods:

  • Utilizing high-resolution scanning electron microscopy (HRSEM).
  • Employing pre- or postfixation extraction of cellular material.
  • Preparing plant samples for imaging plasmodesmata.

Main Results:

  • HRSEM provides high-resolution 3D visualization of plasmodesmata.
  • Specimen preparation for HRSEM is less complex and time-consuming than for TEM.
  • Large tissue regions and numerous plasmodesmata can be imaged efficiently.

Conclusions:

  • HRSEM is a powerful and efficient tool for studying plasmodesmata distribution and architecture.
  • This method simplifies and accelerates research on plant cell-to-cell connections.
  • HRSEM offers a valuable alternative for detailed analysis of plasmodesmata without serial sectioning or tomography.