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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:12334*  Cite 
Description

In Euplotes a replication band of the macronucleus has larger heterochromatin masses on one side of the band after DNA replication has occurred. The replication band moves in the direction of lighter staining in the macronucleus. Vacuoles containing concretion bodies are observed. TEM taken on 8/03/67 by R. Allen with Philips 200 operating at 60kV. Neg. 7,200X. Bar = 1µm. Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol, and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm thickness. A print of the negative was scanned and processed in Photoshop. This image is best used for qualitative analysis. Another image (CIL:38871) is available for quantitative analysis. Additional information is available at (http://www5.pbrc.hawaii.edu/allen/).

Biological Sources
NCBI Organism Classification
Euplotes sp.
Cell Type
cell by organism
eukaryotic cell
Eukaryotic Protist
Ciliated Protist
Cell Line
Euplotes sp. from Carolina Biological Supply
Cellular Component
cytoplasm
macronucleus
food vacuole
contractile vacuole
Biological Context
Biological Process
macronucleus organization
cytoplasm organization
macronuclear replication
Attribution
Names
Richard Allen
Link
http://www5.pbrc.hawaii.edu/allen/
Citation
Digital Object Identifier (DOI)
doi:10.7295/W9CIL12334
Archival Resource Key (ARK)
ark:/b7295/w9cil12334
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 2341px ——
Y 3000px ——