CIL:39453, Vorticella convallaria, cell by organism, eukaryotic cell, Eukaryotic Protist, Ciliated Protist. CIL. Dataset

NCBI Organism:Vorticella convallaria; Cell Types:cell by organism, eukaryotic cell, , ; Cell Components:macronucleus, nucleolus, microtubule associated complex, phagocytic cup, phagocytic vesicle membrane, ; Biological process:macronucleus organization, digestive system process;

Licensing

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

CIL:39453^* Cite

Description

Only the macronucleus contains nucleoli which is the site of ribosomal RNA synthesis and ribosome subunit assembly. This EM also contains the distal end of the food vacuole forming cytopharynx which consists of a single membrane limited tube surrounded by microtubules that originate from the lamellae at the edge of the peristome. TEM taken on 3/29/71 by R. Allen with Hitachi HU11A operating at 75kV. Neg. 10,250X. The raw negative was scanned with an Epson Perfection V750 Pro and this high resolution image is best used for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).

Technical Details

Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm thickness. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).

Biological Sources

NCBI Organism Classification: Vorticella convallaria
Cell Type: cell by organism; eukaryotic cell; Eukaryotic Protist; Ciliated Protist
Cell Line: Cambridge Culture Collection, Cambridge, England, # LB1690/1
Cellular Component: macronucleus; nucleolus; microtubule associated complex; phagocytic cup; phagocytic vesicle membrane; cytopharynx

Biological Context

Biological Process: macronucleus organization; digestive system process

Attribution

Names: Richard Allen (University of Hawaii)

Citation

Digital Object Identifier (DOI): doi:10.7295/W9CIL39453
Archival Resource Key (ARK): ark:/b7295/w9cil39453

Grouping This image is part of a group.

Imaging

Image Type: transmission electron microscopy (TEM); illumination by electrons
Image Mode: detection of electrons; film
Parameters Imaged: electron density
Source of Contrast: stain with broad specificity
Visualization Methods: stain with broad specificity; osmium tetroxide; uranyl salt; lead salt
Processing History: recorded image; film
Data Qualifiers: raw, unprocessed data; suitable for spatial measurements

Sample Preparation

Methods: glutaraldehyde fixed tissue; osmium tetroxide fixed tissue; tissue in epoxy resin embedment; microtome-sectioned tissue
Relation To Intact Cell: microtome-sectioned tissue

Dimensions

Spatial Axis	Image Size	Pixel Size
X	4566px	1.5nm
Y	5106px	1.5nm