The 11 micrographs of the group are views of a serially-sectioned contracted Vorticella convallaria cell that show the main features of this cell. This figure shows 1 food vacuole; a segment of the macronucleus; the micronucleus; the contractile vacuole, linked by CV pore to the bacteria-filled chamber; peristome; perioral cilia now closed to the outside. A sand grain (shattered during sectioning) was trapped against the cell by an unknown layer of unstained material. TEM taken on 3/17/71 by R. Allen with Hitachi HU11A operating at 75kV. Neg. 3,000X. Bar = 2?m. The negative was printed to paper and the image was scanned to Photoshop. This image is suitable for qualitative analysis. A high resolution version of this image in the library (CIL:40573) is available for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).
Biological Process: Digestive system process, Cytoplasm organization, Cortical cytoskeleton organization, Macronucleus organization, Micronucleus organization, Contractile vacuole organization, Oral apparatus organization
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/).
Author: Richard Allen (University of Hawaii)
Source: The Cell: An Image Library