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Electron Microscope Tomography and Single-particle Reconstruction

Electron Microscope Tomography and Single-particle Reconstruction

Transmission electron microscopy (TEM) can be used to determine the 3D structure of biological samples with the help of techniques such as electron microscope tomography and single-particle reconstruction. While single-particle reconstruction can examine macromolecules and macromolecular complexes in vitro conditions only, tomography permits the study of cell components or small cells in vivo.
Electron Tomography
Electron tomography can be performed either in TEM or STEM (scanning transmission...

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Three-dimensional Characterization of Interorganelle Contact Sites in Hepatocytes using Serial Section Electron Microscopy

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Reconstructing plant cells in 3D by serial section electron tomography.

Kiminori Toyooka¹, Byung-Ho Kang

¹RIKEN Plant Science Center, Yokohama, Japan.

Methods in Molecular Biology (Clifton, N.J.)

|October 18, 2013

Summary

Electron tomography reconstructs 3D cellular volumes from 2D transmission electron microscope images. This advanced technique overcomes resolution loss inherent in standard electron microscopy for detailed plant cell visualization.

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Area of Science:

Cell Biology
Microscopy
Structural Biology

Background:

Transmission electron microscopy (TEM) produces 2D images of 3D biological structures.
Dimensionality reduction in TEM causes image resolution loss.
3D microscopy techniques like tomography are needed to overcome resolution limits.

Purpose of the Study:

To describe the collection of tilting series micrographs from plant cells.
To detail the reconstruction of cellular volumes using dual-axis electron tomography.

Main Methods:

Acquisition of tilting series micrographs using transmission electron microscopy.
Application of dual-axis electron tomography for 3D reconstruction.
Analysis of plant cellular structures in three dimensions.

Main Results:

Successful collection of high-quality tilting series micrographs from plant cells.
Accurate reconstruction of 3D cellular volumes.
Demonstration of dual-axis electron tomography's utility in plant cell imaging.

Conclusions:

Dual-axis electron tomography is an effective method for high-resolution 3D imaging of plant cells.
This technique overcomes the resolution limitations of conventional TEM.
Enables detailed investigation of cellular ultrastructure in three dimensions.