Contractile vacuole in the opisthe of a dividing cell. This is presumably the mature CV of the original “mother” cell. Spongiome tubules form large regions of additional membrane on two sides of the CV. The CV contains membrane-like layers that may be lipid. A food vacuole is observed containing expanded trichocysts of Paramecium. TEM taken on 5/20/69 by R. Allen with Philips 300 operating at 60kV. Neg. 5,000X. Bar = 1µm. 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 in the library (CIL:38860) and is available for qualitative 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/).
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