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Related Experiment Videos

Surface membrane regeneration in deciliated Tetrahymena.

N E Williams

    Journal of Cell Science
    |July 1, 1983
    PubMed
    Summary

    Tetrahymena surface membrane proteins are synthesized and deployed during cilia regeneration. New membrane is added in non-ciliated areas and flows to cover regenerating cilia, involving the pellicular alveoli.

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    Area of Science:

    • Cell Biology
    • Protozoology
    • Membrane Biology

    Background:

    • Deciliated Tetrahymena exhibit induced synthesis of surface membrane proteins.
    • Understanding membrane dynamics during cell regeneration is crucial.

    Purpose of the Study:

    • To investigate the deployment of new membrane at the cell surface during cilia regeneration in Tetrahymena.
    • To elucidate the pattern of membrane flow involved in this process.

    Main Methods:

    • Transmission electron microscopy was used to observe cells regenerating cilia.
    • Iodine-125 (125I) surface-marking experiments were conducted.

    Main Results:

    • A pattern of membrane flow involving the pellicular alveoli was suggested.
    • New membrane is initially added in non-ciliated regions.
    • Membrane subsequently flows laterally to cover regenerating cilia.

    Conclusions:

    • The pellicular alveoli play a role in membrane flow during Tetrahymena regeneration.
    • Lateral membrane flow from non-ciliated regions is essential for covering regenerating cilia.

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