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Licensing
Public Domain: This image is in the public domain and thus free of any copyright restrictions. However, as is the norm in scientific publishing and as a matter of courtesy, any user should credit the content provider for any public or private use of this image whenever possible. Learn more
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*CIL – Cell Image Library accession number. Please use this to reference an image.

CIL:9823*  Cite 
Description

Opercularia is named for a ciliated flap (operculum) that is adoral to the opening to the oral region. However, this operculum is pulled back into the body when the myonemes are fully contracted as in this figure. The cilia bordering the operculum arise from the perioral kinetids. TEM taken on 6/13/69 by R. Allen with Philips 300 operating at 60kV. Neg. 4,270X. Bar = 1µm. A print of the negative was scanned and processed in Photoshop. This image is suitable for qualitative analysis. There is a high resolution version of this image in the library (CIL:39170) which is available for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).

Technical Details

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/).

Biological Sources
NCBI Organism Classification
Opercularia [NCBITaxon:168247]
Opercularia coarctata
Cell Type
cell by organism
eukaryotic cell
Eukaryotic Protist
Ciliated Protist
Cell Line
Cambridge Culture Collection, Cambridge, England, # LB1657/1
Cellular Component
macronucleus
oral apparatus
mitochondrion
cell cortex
cytoplasm
Attribution
Names
Richard Allen
Citation
Digital Object Identifier (DOI)
doi:10.7295/W9CIL9823
Archival Resource Key (ARK)
ark:/b7295/w9cil9823
Grouping This image is part of a group.
Imaging
Image Type
transmission electron microscopy (TEM)
illumination by electrons
Image Mode
detection of electrons
film
Parameters 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
Print from negative scanned for Photoshop
Data Qualifiers
processed data
suitable for spatial measurements
Dimensions
Spatial Axis Image Size Pixel Size
X 2829px ——
Y 2823px ——