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Surface properties of the euglenoid flagellum.

G B Bouck, A A Rogalski

    Symposia of the Society for Experimental Biology
    |January 1, 1982
    PubMed
    Summary

    New research reveals the Euglena flagellum

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    Methods in cell biology·1995

    Area of Science:

    • Cell Biology
    • Microbiology
    • Biochemistry

    Background:

    • The Euglena flagellum's structure and mastigoneme attachment were not fully understood.
    • Mastigonemes are crucial for flagellar function in Euglena.

    Purpose of the Study:

    • To elucidate the structural organization of the Euglena flagellum and mastigoneme attachment.
    • To investigate the origin and transport of mastigonemes during flagellar regeneration.
    • To identify factors limiting flagellar growth in Euglena.

    Main Methods:

    • Detailed structural analysis of the Euglena flagellum.
    • Immunological labeling using Fab' fragments to track mastigonemes.
    • Inhibition studies using tunicamycin and cycloheximide.

    Main Results:

    • A paraaxial ribbon structure was identified, anchoring mastigonemes and interacting with microtubule doublets.
    • The reservoir was confirmed as a storage site for flagellar mastigonemes.
    • Glycoprotein synthesis inhibitors like tunicamycin partially inhibit flagellar regeneration, suggesting a rate-limiting role for glycoproteins.

    Conclusions:

    • The paraaxial ribbon and paraflagellar rod play distinct roles in anchoring the flagellar sheath.
    • The reservoir serves as a precursor pool for flagellar mastigonemes.
    • Mastigonemes are potential rate-limiting components in Euglena flagellar growth.

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