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12-tet

Fig. 12: Ciliature - cross sections at various levels

A composite of cross sections through the cilium-basal body complex extending from the cilium to the transition zone between the cilium and basal body and ending at the proximal tip of the basal body. Bars = 0.2µm. a. Cross section of cilium. EM taken 8/4/65 by R. Allen with RCA TEM. b. Cross section near the proximal end of the cilium. Triangular densities link the doublets to the membrane. EM taken 7/23/65 by R. Allen with RCA TEM. c. Level of singlet ends and narrowing of plasma membrane around the axoneme. EM Taken 8/7/65 by R. Allen with RCA TEM. >b>d. Similar to c showing the curving of the plasma membrane and the enclosed alveoli. EM taken 8/7/65 by R. Allen with RCA TEM. e. Distal end of basal body showing 9 triplets and the electron opaque central core. The coated end of a parasomal sac (ps) lies anterior to the basal body. tr mt, transverse microtubules. EM taken 8/9/65 by R. Allen with RCA TEM. f. Toward the proximal end of the basal body. pc mt, postciliary microtubules; kd, kinetodesmal fiber; tr mt, ends of transverse microtubules. EM taken on 8/6/65 by R. Allen with RCA TEM. g. Proximal ends of two basal bodies showing the cartwheel end in one and just distal to the cartwheel in the second basal body. kd, kinetodesmal fiber; pc mt, postciliary microtubules. EM taken 8/7/65 by R. Allen with RCA TEM. Published in J. Cell Biol. 40:716-733, 1969.
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