CIL:21992, Didinium nasutum, Paramecium sp., cell by organism, eukaryotic cell, Eukaryotic Protist, Ciliated Protist. CIL. Dataset

NCBI Organism:Didinium nasutum, Paramecium sp., ; Cell Types:cell by organism, eukaryotic cell, , ; Cell Components:oral apparatus, phagocytic cup, cell cortex, cell surface, ; Biological process:phagocytosis, phagocytosis, engulfment, response to symbiont;

Licensing

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

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Description

Didinium ingests Paramecium. Note that Paramecium is nearly the waiting food vacuole and the proboscis of Didinium is beginning to reform. This micrograph also shows the metachronous waves of cilia in the two characteristic ciliary girdles of Didinium nasutum and bacteria on the surface that may represent ectosymbionts. The micrograph was taken in 1968 by G. Antipa on a Cambridge Mark IIA operating at 20kV. The negative magnification is 630X. 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; extracellular symbiont

Biological Context

Biological Process: phagocytosis; phagocytosis, engulfment; response to symbiont

Attribution

Names: Gregory Antipa (San Francisco State University)

Citation

Digital Object Identifier (DOI): doi:10.7295/W9CIL21992
Archival Resource Key (ARK): ark:/b7295/w9cil21992

Grouping This image is part of a group.

Imaging

Image Type: recorded image
Image 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
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	4522px	22nm
Y	5984px	22nm