Allen, Richard (2021). CIL:36280, Vorticella convallaria, 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/J0RJ4HGS

Vorticella convallaria has a contractile stalk that arises from the aboral pole of the cell. The myonemes from the body converge at this pole and pass into the stalk to form a large contractile bundle called the spasmoneme. When contracted the stalk coils into a helix. The spasmoneme is partially encased in an extension of the pellicle and a thin layer of cytosol that is enclosed with plasma membrane. An additional secreted sheath surrounds the stalk. TEM taken on 4/6/72 by R. Allen with Hitachi HU11A operating at 75kV. Neg. 7,500X. Bar = 1µm. The negative was printed to paper and the image was scanned to Photoshop. This digitized image is available for qualitative analysis. There is a high resolution version of this image in the library (CIL:39517) which is available for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).

• 2021

• Allen, Richard

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/).

Preparation: glutaraldehyde fixed tissue; osmium tetroxide fixed tissue; tissue in epoxy resin embedment; microtome-sectioned tissue
Relation to intact cell: microtome-sectioned tissue
Item type: transmission electron microscopy (TEM); illumination by electrons
Imaging mode: detection of electrons; film
Parameter 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; Print from negative scanned for Photoshop.
Data qualification: Processed

• Cell Image Library Group ID: 10493

• Vorticella convallaria

• Cell by organism
• Ciliated Protist
• Eukaryotic cell
• Eukaryotic Protist
• Extracellular matrix
• Fibril
• Macronucleus
• Plasma membrane

• Cambridge Culture Collection, Cambridge, England, # LB1690/1
• Contractile system
• Macronucleus organization
• Plasma membrane organization

• data
• image

• No linguistic content; Not applicable

Samplenumber: 36280

Doi: https://doi.org/10.6075/J0RJ4HGS

Source data

• Source Record in the Cell Image Library: https://doi.org/10.7295/W9CIL36280

CC0 1.0 Universal Public Domain Dedication

Creative Commons Public Domain Dedication

Use: The person(s) who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.

Constraint(s) on Use: This work may be used without prior permission.

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

2022-08-12