Archiv für Mikrobiologie

, Volume 90, Issue 1, pp 1–17 | Cite as

A new species of marine labyrinthulid Labyrinthuloides yorkensis gen. nov. spec. nov. —Cytology and fine structure

  • Frank O. Perkins


The structure and life cycle of a new genus and species of labyrinthulid, Labyrinthuloides yorkensis, is described from observations of pure cultures. Uninucleate cells are capable of gliding by means of ectoplasmic nets which push or pull the cells across the substrate. The net elements do not enrobe the cells and motility is reversible. Sporulation occurs by successive bipartition or progressive cleavage of the protoplast. Biflagellated zoospores with an anterior tinseled flagellum and posterior whiplash flagellum are formed as are non-replicating amoebae and plasmodia. The fine structure includes centrioles with a single large granule in the lumen and numerous cytoplasmic inclusion bodies with associated membrane complexes. The membrane-inclusion arrays are each found within a delimiting vesicle membrane.


Life Cycle Fine Structure Pure Culture Inclusion Body Vesicle Membrane 
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Copyright information

© Springer-Verlag 1973

Authors and Affiliations

  • Frank O. Perkins
    • 1
  1. 1.Virginia Institute of Marine ScienceGloucester PointUSA

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