CIL:39139, Paramecium caudatum, cell by organism, eukaryotic cell, Eukaryotic Protist, Ciliated Protist
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- Collection
- Cite This Work
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Allen, Richard (2021). CIL:39139, Paramecium caudatum, cell by organism, eukaryotic cell, Eukaryotic Protist, Ciliated Protist. In Cell Image Library. UC San Diego Library Digital Collections. Dataset. https://doi.org/10.6075/J0D50M9C
- Description
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Receptor mediated endocytosis is a process in which extracellular molecules are taken into the cell via coated vesicles that pinch from the plasma membrane. In Paramecium the resulting vesicles fuse with flattened cisterna called early endosomes. Early endosomes accumulate just under the cortex of the cell. Sorting of proteins destined to be returned to the plasma membrane after separating from cargo occurs in the early endosomes and is facilitated by the formation of secondary coated pits and vesicles on the early endosomes that are smaller than the coated and uncoated preendosomal vesicles that arise from the plasma membrane. These small coated pits pinch off and subsequently lose their coats to form carrier vesicles that are roughly 100nm in diameter. These vesicles move deeper into the cell where they bind to microtubular ribbons. TEM taken on 11/4/68 by R. Allen with Philips 300 operating at 60kV. Neg. 20,500X.
- Date Issued
- 2021
- Researcher
- Methods
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Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm thickness. The raw negative was scanned with an Epson Perfection V750 Pro and this high resolution image is best used for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).
- Technical Details
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Preparation: glutaraldehyde fixed tissue; tissue in vitreous ice embedment; microtome-sectioned tissue; monoclonal antibody
Relation to intact cell: microtome-sectioned tissue
Item type: transmission electron microscopy (TEM); illumination by electrons
Imaging mode: detection of electrons; film
Parameter imaged: electron density
Source of contrast: intrinsic mass distribution; stain with broad specificity
Visualization methods: stain with broad specificity; uranyl salt; gold
Processing history: recorded image; film; Print from negative scanned for Photoshop.
Data qualification: Processed - Series
- Scientific Name
- Anatomy
- Topics
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- Language
- No linguistic content; Not applicable
- Identifier
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Samplenumber: 39139
- Related Resource
- Source Record in the Cell Image Library: https://doi.org/10.7295/W9CIL39139
Source data
- License
- Copyright
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Creative Commons Public Domain Dedication
Use: The person(s) who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Constraint(s) on Use: This work may be used without prior permission.
- Digital Object Made Available By
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Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp)
- Last Modified
2022-08-12