The Cell: An Image Library - Image CIL:22781

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

Comments:

Add to Photobox

CIL:22781^*

Description

Didinium attacks Paramecium. Also showing many discharged trichocysts and metachronous waves of cilia in the two characteristic ciliary girdles of Didinium nasutum and on Paramecium. A series of capture and ingestion SEMs are grouped with this image. This micrograph was taken in 1968 by G. Antipa on a Cambridge Mark IIA operating at 20kV. The negative magnification is 410X. Further details are available at Wessenberg, H. and Antipa, G. 1970. Capture and ingestion of Paramecium by Didinium nasutum. J. Protozool. 17:250-270.

Biological Sources

NCBI Organism Classification: Didinium nasutum; Paramecium sp.
Cell Type: cell by organism; eukaryotic cell; Eukaryotic Protist; Ciliated Protist
Cellular Component: cell cortex; oral apparatus; trichocyst; cell surface

Biological Context

Biological Process: response to toxin; activation of membrane attack complex

Attribution

Name: Gregory Antipa (San Francisco State University)
Link: http://online.sfsu.edu/~antipa/

Grouping

This image is part of a group.

Imaging

Image Type: recorded image
Imaging Mode: illumination by electrons; secondary_electron imaging
Parameters Imaged: illumination by electrons; secondary electron generation; secondary_electron imaging
Source of Contrast: detection of electrons
Visualization Methods: shadowing and plating
Processing History: recorded image; film; unprocessed raw data

Data Qualifiers: raw, unprocessed data

Sample Preparation

Methods: chemically fixed tissue; Parducz fixative; lyophilized specimen; Au/Pd metal sputter-coat
Relation To Intact Cell: whole mounted tissue

Dimensions

Spatial Axis	Image Size	Pixel Size
X	5298px	32nm
Y	5912px	32nm

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