Alternate header for print version

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

CIL:13127*  Cite 

High resolution view of quick-freeze deep-etch of the contractile vacuole E-fracture face. This face, like the collecting canal membrane, is porous indicating that many IMPs have been removed from this leaflet during fracturing. The microtubular ribbon seen here is composed of at least 24 microtubules and is divided into 3 sub-ribbons. Only a few IMPs remain in this leaflet. TEM taken on 6/22/88 by C. Schroeder with Zeiss 10A operating at 80kV. Neg. 24,800X. The raw film was scanned with an Epson Perfection V750 Pro. This image is best used for quantitative analysis. Additional information available at (

Biological Sources
NCBI Organism Classification
Paramecium multimicronucleatum
Cell Type
cell by organism
eukaryotic cell
Eukaryotic Protist
Ciliated Protist
Cellular Component
contractile vacuole
contractile vacuolar membrane
Biological Context
Biological Process
contractile vacuole organization
Richard Allen (University of Hawaii)
C. Schroeder
Digital Object Identifier (DOI)
Archival Resource Key (ARK)
Grouping This image is part of a group.
Spatial Axis Image Size Pixel Size
X 2943px 0.8nm
Y 3522px 0.8nm