Antipa, Gregory (2021). CIL:21993, Didinium nasutum, Paramecium sp., cell by organism, eukaryotic cell, Eukaryotic Protist, Ciliated Protist. In Cell Image Library. UC San Diego Library Digital Collections. Dataset. https://doi.org/10.6075/J0BP01XZ

Didinium captures Paramecium. A moment after initial contact when toxicysts enter Paramecium. The strand of toxicysts can be seen between the two organisms, and Didinium will use the anchored toxicysts to reel in Paramecium to the awaiting proboscis which is opening to accept its prey. Also showing metachronous waves of cilia within the two characteristic ciliary girdles of Didinium nasutum; the waves on Paramecium may be paralyzed due to the effects of the attached toxicysts. This micrograph was taken in 1968 by G. Antipa on a Cambridge Mark IIA operating at 20kV. The negative magnification is 460X. Further details are available at Wessenberg, H. and Antipa, G. 1970. Capture and ingestion of Paramecium by Didinium nasutum. J. Protozool. 17:250-270.

• 2021

• Antipa, Gregory

Preparation: chemically fixed tissue; lyophilized specimen; Parducz fixative; Au/Pd metal sputter-coat
Relation to intact cell: whole mounted tissue
Item type: recorded image
Imaging mode: illumination by electrons; secondary_electron imaging
Parameter 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 qualification: Raw

• Cell Image Library Group ID: 11753

• Didinium nasutum
• Paramecium sp.

• Cell by organism
• Cell cortex
• Cell surface
• Ciliated Protist
• Eukaryotic cell
• Eukaryotic Protist
• Oral apparatus
• Phagocytic cup

• Phagocytosis
• Phagocytosis, engulfment

• data
• image

• No linguistic content; Not applicable

Samplenumber: 21993

Doi: https://doi.org/10.6075/J0BP01XZ

Source data

• Source Record in the Cell Image Library: https://doi.org/10.7295/W9CIL21993

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Research Data Curation Program, UC San Diego, La Jolla, 92093-0175 (https://lib.ucsd.edu/rdcp)

2022-08-12