The termination of the central microtubules from the cilia of Tetrahymena pyriformis

Winfield S. Sale, Peter Satir

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

In frayed axonemes of cilia isolated from Tetrahymena Pyriformis, observed in negative stain, the central apparatus remains intact, stabilized in part by the sheath projections that encircle the two singlet central microtubules. The projections terminate ca. 1.5 ± 0.5 μm before the microtubules themselves end. The microtubules are capped together at their tips by a distinct structure, the central pair cap. The cap, ca. 50 nm across and 90 nm long, consists of a stack of two disks and a ball, similar in shape to a finial. The cap is the only part of the axoneme that extends to the distalmost point of the ciliary membrane and, therefore, it may be of significance in length determination or in shaping the ciliary tip.

Original languageEnglish (US)
Pages (from-to)45-49
Number of pages5
JournalCell Biology International Reports
Volume1
Issue number1
DOIs
StatePublished - 1977
Externally publishedYes

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Tetrahymena pyriformis
Cilia
Microtubules
Axoneme
Coloring Agents
Membranes

ASJC Scopus subject areas

  • Cell Biology

Cite this

The termination of the central microtubules from the cilia of Tetrahymena pyriformis. / Sale, Winfield S.; Satir, Peter.

In: Cell Biology International Reports, Vol. 1, No. 1, 1977, p. 45-49.

Research output: Contribution to journalArticle

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