Fawcett, Don W. (2021). CIL:36058, Passeriformes, sperm. In Cell Image Library. UC San Diego Library Digital Collections. Dataset. https://doi.org/10.6075/J0M907G9

Figure 426 (A-D) from Chapter 16 (Cytoplasmic matrix and cytoskeleton) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Stages of differentiation of the finch spermatozoon. A.)Early in spermatogenesis, a large bundle of micortubules winds a helical course around the condensign nucleus as the head is beginning to take on its mature corkscrew-shaped form. B.) Although the microtubules disappear after the shape develops, shallow depressions at the surface of the head (arrows) mark their former location. C.)The microtubule bundle continues posteriorly and winds around the midpiece forming a double helix with the continus strand of fused mitochondria. D.)The mitochondrial helix of the mature sperm retains the same pitch as the microtubule bundle after the latter has disappeared. Image from Fawcett et al., Dev. Biol. 26:220-251 (1971). A PDF copy of the accompanying chapter is available on the ASCB’s BioEDUCATE website.

• 2021

• Fawcett, Don W.

Preparation: crosslinking-fixative fixed tissue; tissue in plastic embedment
Relation to intact cell: microtome-sectioned tissue
Item type: transmission electron microscopy (TEM)
Imaging mode: illumination by electrons; detection of electrons
Parameter imaged: electron density
Source of contrast: stain with broad specificity
Visualization methods: electron-dense stain
Data qualification: Processed

• Cell Image Library Group ID: 9915

• Passeriformes

• Microtubule
• Sperm

• Regulation of cell shape

• data
• image

• No linguistic content; Not applicable

Samplenumber: 36058

Doi: https://doi.org/10.6075/J0M907G9

Source data

• Source Record in the Cell Image Library: https://doi.org/10.7295/W9CIL36058

Other resource

• Fawcett, Don W. "The Cell." 2nd ed., W.B. Saunders, 1981, ISBN 0721635849. https://www.ascb.org/career-development/teaching/don-fawcetts-the-cell/

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2022-08-12