Another view of the cytopharynx but in a dividing Didinium. This cytopharynx is in the proter (anterior) daughter cell. The lamellae, each consisting of a set of perpendicularly arranged microtubules cover this food-vacuole forming region. Vesicles lie near the cytopharyngeal membrane and fuse with the membrane. TEM taken on 5/20/69 by R. Allen with Philips 300 operating at 60kV. Neg. 6,370X. Bar = 1?m.
Biological Process: Cortical cytoskeleton organization, Cortical microtubule organization, Plasma membrane organization
The negative was printed to paper and the image was scanned to Photoshop. This digitized image is available for qualitative analysis. A High resolution image is available in the library (CIL:38861) for quantitative analysis. 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
Source: The Cell: An Image Library