Abstract
AbstractRat adrenal cortex was processed for high resolution scanning electron microscopy (HRSEM) to confirm tubular cristae, reported by transmission electron microscopy to be present in cortex mitochondria. Mitochondria in several other tissue and cell types were also observed and their ultrastructure confirmed by using three‐dimensional, stereo, high resolution scanning electron microscopy. The mitochondria in rat and human hepatocytes as well as human skin fibroblasts mitochondria proved to be long, up to 46 micrometers and branching, as compared to those in liver which were spherical in shape. Cold adapted brown fat cells were packed with mitochondria, these containing plate or shelf‐like cristae. Branched, rat striated muscle mitochondria were observed to curve around contractile protein filament bundles. The muscle mitochondrial cristae were found to be both tubular and plate‐like, within the same mitochondrion. The ratio of tubular cristae to plate‐like cristae varied considerably between muscle mitochondria. In order to use ultrastructural changes in mitochondria for differential diagnosis, and because 3D reconstruction of mitochondria based on transmission electron microscopy serial sections is severely limited in resolution, it is imperative to first develop a correct understanding of tissue specific, normal mitochondrial ultrastructure based on three‐dimensional, HRSEM methods. © 1994 Wiley‐Liss, Inc.
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Dates
Type | When |
---|---|
Created | 20 years, 5 months ago (Feb. 23, 2005, 5:16 p.m.) |
Deposited | 1 year, 9 months ago (Oct. 24, 2023, 2:15 a.m.) |
Indexed | 1 month, 3 weeks ago (June 27, 2025, 6:35 a.m.) |
Issued | 31 years, 5 months ago (March 1, 1994) |
Published | 31 years, 5 months ago (March 1, 1994) |
Published Online | 20 years, 6 months ago (Feb. 4, 2005) |
Published Print | 31 years, 5 months ago (March 1, 1994) |
@article{Lea_1994, title={Variations in mitochondrial ultrastructure and dynamics observed by high resolution scanning electron microscopy (HRSEM)}, volume={27}, ISSN={1097-0029}, url={http://dx.doi.org/10.1002/jemt.1070270402}, DOI={10.1002/jemt.1070270402}, number={4}, journal={Microscopy Research and Technique}, publisher={Wiley}, author={Lea, Peter J. and Temkin, Robert J. and Freeman, Karl B. and Mitchell, Grant A. and Robinson, Brain H.}, year={1994}, month=mar, pages={269–277} }