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*CIL – Cell Image Library accession number. Please use this to reference an image.

CIL:24922*  Cite 

Ancistrum is a marine ciliate that inhabits the mantle cavity of mytiliid mussels. This image shows a good view of the macronucleus, mitochondria with tubular cristae, and what are probably flask-shaped endosomes. This group of images is located in a part of the cytoplasm that especially exhibits these vesicles, and CIL:24921 has a view at an appropriate angle to exhibit what may be dynamin or a dynamin-like protein decorating the tube of the flask shaped organelle. In addition, the macronuclear membrane is well demonstrated in this particular micrograph. TEM taken by G. Antipa in 1969 on a Hitachi HU11A operating at 75kV. 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 60nm thickness.

Biological Sources
NCBI Organism Classification
uncultured Scuticociliatia
Ancistrum sp.
Cell Type
cell by organism
eukaryotic cell
Eukaryotic Protist
Ciliated Protist
Cellular Component
mitochondrial crista
cell cortex
nuclear membrane
nuclear outer membrane-endoplasmic reticulum membrane network
Gregory Antipa (San Francisco State University)
Digital Object Identifier (DOI)
Archival Resource Key (ARK)
Grouping This image is part of a group.
Image Type
transmission electron microscopy (TEM)
illumination by electrons
Image Mode
detection of electrons
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
unprocessed raw data
Data Qualifiers
raw, unprocessed data
suitable for spatial measurements
Spatial Axis Image Size Pixel Size
X 5663px 1.72nm
Y 5561px 1.72nm