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In a conventional freeze fracture view the membrane around the
trichocyst tip is decorated (arrow) with striations and IMPs.
These decorations are found at the site where the trichocyst tip is
associated with the alveolar (al) membrane in the septum. Pores
in the septum (sp) connect alveoli and organized IMPs at the
base of the cilium (arrowheads) indicate an association of the
ciliary membrane with the proximal ends of the 9 doublets of the
cilium and with the transition zone between the basal body and cilium.
EM taken on 9/27/78 by R. Allen with Hitachi HU11A TEM. Neg. 14,750X.
Bar = 0.25µm.
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