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

CIL:9253*  Cite 

A high resolution of some tubules near a contractile vacuole that appear to be decorated with pegs similar to the spongiome of the CV of Paramecium. In Paramecium these pegs are known to be V-type proton pumps (V-ATPases). Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm thickness. TEM taken on 3/2/69 by R. Allen with Philips 300. Neg. 12,500X. The raw film was scanned with an Epson Perfection V750 Pro. This high resolution image is available for quantitative analysis. Additional information is available at (

Biological Sources
NCBI Organism Classification
Coleps hirtus
Cell Type
Eukaryotic Protist
Ciliated Protist
Cell Line
Cambridge Culture Collection, Cambridge, England, catalog # LB1656/1
Cellular Component
contractile vacuole
contractile vacuolar membrane
Cortical membranes
Biological Context
Biological Process
water transport
response to water
multiple membrane interactions
Molecular Function
ionic regulation
Richard Allen
Digital Object Identifier (DOI)
Archival Resource Key (ARK)
Grouping This image is part of a group.
Spatial Axis Image Size Pixel Size
X 6250px 1.2nm
Y 4832px 1.2nm