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  • 1
    Digitale Medien
    Digitale Medien
    Ultrastructure of gill epithelial cells of Diopatra neapolitana (Annelida, Polychaeta) (1984)
    Springer
    Zoomorphology 104 (1984), S. 304-309 
    Details
    ISSN: 1432-234X
    Schlagwort(e): Ultrastructure ; Gills ; Epithelial cells ; Polychaeta
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The ultrastructure of gill epidermal cells of Diopatra neapolitana and their relationship with blood spaces are described. The existence of a basal infolding complex, related to the blood spaces, is also reported. A possible involvement of these cells in osmoregulation and ion interchange, apart from their well-known role in respiration, is suggested.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00312012
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Silver staining in pinealocyte nuclei: Observations and quantitative analysis during the rat oestrous cycle (1987)
    Springer
    Protoplasma 138 (1987), S. 119-125 
    Details
    ISSN: 1615-6102
    Schlagwort(e): Silver staining ; Nucleolus ; Quantitative analysis ; Pineal gland ; Rat ; Oestrous cycle
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Morphology, distribution and number of different argyrophilic aggregates appearing in pinealocyte nuclei have been studied during the rat oestrous cycle. Using the Ag-NOR reaction we have found two types of argyrophilic aggregates in pinealocyte nuclei. One of them, corresponding to the fibrillar centres and the surrounding fibrillar component, appears in the nucleoli. The silver grains are more loosely packed in the dense fibrillar component than in the fibrillar centres. A decrease in the number of these nucleolar argyrophilic aggregates was obtained at oestrous. A second type of silver grain aggregate was observed in the pinealocyte nucleoplasm. We call them “Ag-granule clusters” because they are similar to the interchromatin granule clusters and constitute the only silver deposit forming aggregates apart from the nucleolus. The number of Ag-granule clusters is significantly smaller at oestrous and meta-oestrous than at dioestrous and pro-oestrous.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF01281020
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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