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  • Title: An ultrastructural investigation of 180 degrees-rotated ciliary meridians in Tetrahymena pyriformis.
    Author: Ng SF, Williams RJ.
    Journal: J Protozool; 1977 May; 24(2):257-63. PubMed ID: 407353.
    Abstract:
    An ultrastructural investigation has been carried out on 180 degrees-rotated ciliary meridians (inverted meridians) in Tetrahymena pyriformis temperature-sensitive mutant (mo1b/mo1b), syngen 1, strain B. The longitudinal, transverse and post-ciliary microtubular bands, the kinetodesmal fiber, and the parasomal sac, are shown to be disposed at a 180 degrees angle to their normal positions or orientations. Other abnormalities are as follows: the first 2 basal bodies of the inverted meridian fail to organize into "couplets" and the inverted meridian intrudes into the anterior pole region; an extra longitudinal microtubular band is found in one of the cell lines.
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