The Cell: An Image Library - Image CIL:22782

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CIL:22782^*

Description

Didinium intiates capture of Paramecium. Believe-it-or-not, this Didinium may accomplish the ingestion of the Paramecium in less than one minute. See other images in the link below. Also showing metachronous waves of cilia in the two characteristic ciliary girdles of Didinium nasutum. This micrograph was taken in 1968 by G. Antipa on a Cambridge Mark IIA operating at 20kV. The negative magnification is 425X. 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: oral apparatus; phagocytic cup; cell cortex; cell surface

Biological Context

Biological Process: phagocytosis; phagocytosis, engulfment

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	5650px	33nm
Y	5562px	33nm

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