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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Cell & tissue research 134 (1972), S. 227-243 
    ISSN: 1432-0878
    Keywords: Calcium cells ; Mollusca (Ferrissia wautieri) ; Histochemistry ; Electron microscopy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Description / Table of Contents: Résumé Le calcium s'accumule dans les tissues de Ferrissia wautieri sous forme de sphérules de calcaire intracellulaires. Notre travail comporte une étude descriptive de ces cellules en microscopie optique et électronique, et une étude minéralogique abordée par des techniques de coloration, de dissolution, de polarisation de la lumière et de diffraction électronique. Les résultats obtenus montrent que les sphérules, par leur aspect, leur nombre, leur volume et leur état de cristallisation, présentent des caractères différents selon la saison, ce qui permet d'établir une relation entre l'état des nodules calcaires et les variations du métabolisme des individus.
    Notes: Summary In Ferrissia wautieri calcium is stored in the connective tissue in intracellular calcareous spherules. The cells have been studied light- and electronmicroscopically and a mineralogical analysis of the spherules was done by selective staining, dissolution, polarisation and electron diffraction. The results of these studies show that the aspect, the number, the volume and the rate of cristallisation of the calcospherites are different according to the seasons. Therefore it may be assumed that the characteristics of the spherules are connected with metabolic variations in these animals.
    Type of Medium: Electronic Resource
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