CIL:12344, Paramecium multimicronucleatum, 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:12344, Paramecium multimicronucleatum, 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/J0639NVT
- Description
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P. multimicronucleatum in defecation. When a spent vacuole has fused with the single membrane along the midline of the ridge the lips of the cytoproct split apart and form a wide gap. The membrane of the spent vacuole is now continuous with the plasma membrane and quickly undergoes vesiculation into vesicles that are released back into the cytosol. No membrane is released into the surrounding environment. The cytoproct lips are covered by extensions of alveoli up to their tips. Complete defecation is insured by the retrieval of all of the spent vacuole membrane until the lips are pulled back together at the tip of the ridge and all DV-IV membrane has been removed from the cytoproct. No other expulsion force is needed for expelling the vacuole contents. TEM taken on 5/25/82 by R. Allen with Hitachi HU11A operating at 60kV. Neg. 6,500X.
- Date Issued
- 2021
- Researcher
- Methods
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The raw film was scanned with an Epson Perfection V750 Pro. This image is best used for quantitative analysis. Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm thickness. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).
- Technical Details
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Preparation: glutaraldehyde fixed tissue; osmium tetroxide fixed tissue; tissue in epoxy resin embedment; microtome-sectioned tissue
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: stain with broad specificity
Visualization methods: stain with broad specificity; osmium tetroxide; uranyl salt; lead salt
Processing history: recorded image; film; unprocessed raw data
Data qualification: Raw;spatialmeasurements - Series
- Scientific Name
- Anatomy
- Topics
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- Language
- No linguistic content; Not applicable
- Identifier
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Samplenumber: 12344
- Related Resources
- Source Record in the Cell Image Library: https://doi.org/10.7295/W9CIL12344
- Paramecium and Other Ciliates: Richard Allen's Image Collection. Pacific Biosciences Research Center. University of Hawaii at Manoa: https://www5.pbrc.hawaii.edu/allen/
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- 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