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Cytoskeletal dynamics of Apedinella radians (Pedinellophyceae) I. Pre-division development and the formation of spine-scales and body scales

Protoplasma, ISSN: 0033-183X, Vol: 175, Issue: 1-2, Page: 17-28
1993
  • 6
    Citations
  • 0
    Usage
  • 8
    Captures
  • 1
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    6
    • Citation Indexes
      6
  • Captures
    8
  • Mentions
    1
    • References
      1
      • 1

Article Description

Specific events preceding cell division in the unicellular phytoflagellate Apedinella radians (Pedinellophyceae) were investigated ultrastructurally and by immunofluorescence microscopy. These events include the sequential formation and secretion of a duplicate set of elongate spine-scales, the duplication and development of basal bodies/flagella, the generation of two new dictyosomes at the future sites of spindle poles, and the constriction (not division) of chloroplasts. Actin and microtubules are involved in spine-scale formation, while actin alone appears to play a role during body scale formation. Both scale types are formed intracellularly within specialized vesicles located adjacent to the posterior cell membrane. The length of spine-scales is not limited by cell size, as they form within cell extensions. Following secretion, spine-scales remain attached below the equator of the cell, and are not deployed to their interphase positions until after the completion of cell division. © 1993 Springer-Verlag.

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