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  • 1
    ISSN: 1615-6102
    Keywords: Flagellar apparatus ; Green algae ; Phylogeny ; Striated fiber ; Symmetry ; Ulothrix
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The anterior end of the zoospore ofUlothrix belkae has been examined in detail and is compared toStigeoclonium and other filamentous green algae. The nature of the symmetry of green algal motile cells is discussed and the term, 180° rotational symmetry, is proposed to describe the type of arrangement of anterior end components seen inU. belkae, including the four basal bodies, rootlets and striated fibers. The four microtubular rootlets are cruciately arranged. A striated microtubule-associated component (SMAC) has a periodicity of 6.4 nm and extends with each 2-membered rootlet posteriorly into the cell. One 5-membered rootlet passes very near the eyespot. Phylogeny in green algal motile cells is discussed.
    Type of Medium: Electronic Resource
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