The top of the cytopharyngeal basket showing a closed cytostome where food will be engulfed. In the lab Nassula was fed Phormidium inundatum, a cyanobacterium. Ingested food is seen in food vacuoles as intensely stained blobs which are in various stages of digestion. TEM taken on 4/1/69 by R. Allen with Philips 300 operating at 60kV. Neg. 4,270X. Bar = 1µm.
Standard glutaraldehyde fixation followed by osmium tetroxide, dehydrated in alcohol and embedded in an epoxy resin. Microtome sections prepared at approximately 75nm. A print of the negative was scanned and processed in Photoshop. This image is best used for qualitative analysis. There is a high resolution version of this image in the library (CIL:39137) which is available for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).
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