Search Results - (Author, Cooperation:O. Piskurek)

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  1. 1
    Staff View
    Publication Date:
    2013-07-23
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; *Biological Evolution ; Gene Conversion/*genetics ; Gene Transfer, Horizontal/genetics ; Genome/*genetics ; Genomics ; Meiosis/genetics ; Models, Biological ; Reproduction, Asexual/*genetics ; Rotifera/*genetics ; Tetraploidy
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Piskurek, O. ; Kottek, Tina ; Falk, Karl-Herbert
    Springer
    Published 1998
    Staff View
    ISSN:
    1432-234X
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Notes:
    Abstract  Plagiostomum lemani possesses extremely specialized intraepidermal sensory cells. These obvious photoreceptors, which are not visible with the light microscope, are ciliary aggregations located in an intracellular cavity. The numerous spiralled cilia have the classic 9 × 2 + 2 arrangement at their base and a modified pattern of microtubules apically. The discovered differentiations do not show a connection to the surface. Neither mantle cells nor pigment cells have been found. The structural similarities with other epidermal photoreceptors of species among the different taxa of free-living Plathelminthes are outlined. Besides the larval stages of the taxon Polycladida known so far, the same kind of light-sensing photoreceptive cell has never been described in any other species of the Plathelminthes.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses