Summary
In the endothelial, the media and mesenchymal cells of the vessels in the chicken's allantoic and vitelline membranes “multivesicular structure” regularly occur. They consist of aggregated vesicles and/or vacuoles (diameters ranging from 800 Å to 5000 Å) and seem to present a rather common and widespread cellular reaction, that might serve as a mechanism to sequester those parts of the cytoplasm which became superfluous e.g. during cell differentiation.
Zusammenfassung
In verschiedenen Arten von Gefäß- und Mesenchymzellen in Allantois und Dottersack des Hühnchens wurden regelmäßig sog. „multivesicular structures“ beobachtet, die aus intrazellulären Aggregaten von Vesikeln (Durchmesser ca.: 800 Å) und/oder Vakuolen (Durchmesser bis 5000 Å) bestehen. Ähnliche Befunde anderer Autoren und die eigenen Ergebnisse sprechen dafür, daß es sich um das Substrat einer weitverbreiteten Zellreaktion handelt, die u.a. das morphologische Äquivalent der Sequestrierung eines z.B. im Zuge der Zelldifferenzierung überflüssig gewordenen Zytoplasmaanteils darstellt.
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Hammersen, F., Wendler, W. Multivesikuläre Strukturen in verschiedenen Wandzellen der Allantois- und Dottersackgefäße des Hühnchens. Z.Zellforsch 130, 243–248 (1972). https://doi.org/10.1007/BF00306960
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DOI: https://doi.org/10.1007/BF00306960