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Related Concept Videos

Preparation of Samples for Electron Microscopy01:20

Preparation of Samples for Electron Microscopy

7.8K
To be visualized by an electron microscope, either transmission or scanning, biological samples need to be fixed (stabilized) so the electron beam does not destroy them and dried thoroughly (desiccated/dehydrated) so the vacuum does not affect them. Fixation needs to be done as quickly as possible because the sample properties will start changing as soon as it is removed from its natural environment. For example, in a tissue sample, the oxygen levels begin decreasing, causing an altered...
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Fixation and Sectioning01:03

Fixation and Sectioning

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Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
The simplest type of preparation is the wet mount, in which the specimen is placed in a drop of liquid on the slide. A liquid specimen can be directly deposited on the slide using a dropper. Solid specimens, such as skin scraping, can be placed on the slide before adding a drop of liquid to prepare the wet mount. Sometimes the liquid is simply water, but stains are often added...
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A Method for Preparing Difficult Plant Tissues for Light and Electron Microscopy.

Peta L Clode1

  • 1Centre for Microscopy, Characterisation & Analysis,The University of Western Australia,Crawley,WA 6009,Australia.

Microscopy and Microanalysis : the Official Journal of Microscopy Society of America, Microbeam Analysis Society, Microscopical Society of Canada
|July 21, 2015
PubMed
Summary
This summary is machine-generated.

A new protocol successfully prepares complex plant leaves for microscopy. This method enhances tissue preservation and sectioning, enabling detailed ultrastructural studies of plant materials.

Keywords:
histologyleavessample preparationsectionsultrastructure

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Area of Science:

  • Plant Biology
  • Microscopy Techniques
  • Materials Science

Background:

  • Conventional microscopy techniques face limitations in processing complex plant tissues, especially Proteaceae leaves.
  • Difficulty in infiltration and sectioning hinders ultrastructural analysis of these plant materials.
  • Existing methods are inadequate for detailed cellular and organelle studies in challenging plant species.

Purpose of the Study:

  • To develop a robust protocol for preparing Banksia prionotes (Australian Proteaceae) leaves for light and transmission electron microscopy.
  • To overcome limitations in tissue infiltration and sectioning for complex plant structures.
  • To enable high-quality ultrastructural imaging of plant leaves.

Main Methods:

  • A novel protocol combining vibratome sectioning, microwave processing, vacuum application, and ultra-low viscosity resin infiltration.
  • Step-by-step methodology detailed for reproducible sample preparation.
  • Application of microwave technology to accelerate and improve fixation and dehydration steps.

Main Results:

  • Achieved highly reproducible, well-preserved, and sectionable plant leaf material.
  • Obtained very high-quality light and electron micrographs.
  • Enabled detailed study of cellular ultrastructure from leaf level to organelle substructure.

Conclusions:

  • The developed protocol successfully addresses challenges in preparing complex plant leaves for microscopy.
  • This method yields superior sample quality for ultrastructural analysis.
  • The approach is widely applicable across plant sciences and adaptable for various imaging needs.