High resolution image of immunogold b-tubulin labeled ribbons that extend from the cytopharynx and have discoidal vesicles bound to their kinetic side, i.e., their anterior side relative to the cell’s longitudinal axis (sidedness explained in Fok et al., J. Euk. Microbiol. 2008). TEM taken on 7/5/96 by R. Allen with Zeiss 10A operating at 80kV. Neg. 12,000X. Cells were lightly fixed with 0.25% glutaraldehyde and infiltrated with 2.3M sucrose before being frozen in liquid nitrogen and thin sectioned at a temperature of –100°C at approximately 75nm thickness. Frozen sections from these preparations were then thawed, washed, and exposed to a monoclonal primary antibody that was raised in mice or rabbit/goat and to colloidal gold-complexed goat-anti-mouse/rabbit secondary antibodies. Further details of preparation are detailed in Methods Cell Biol. 2010;96:143-73. The raw film was scanned with a Nikon Coolscan 9000ED. This image is best used for quantitative analysis. Additional information available at (http://www5.pbrc.hawaii.edu/allen/).
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