Ultrastructure of collagen in sea urchin embryos
- 1 January 1979
- journal article
- research article
- Published by Springer Nature in Wilhelm Roux' Archiv für Entwicklungsmechanik der Organismen
- Vol. 186 (1) , 65-70
- https://doi.org/10.1007/bf00848108
Abstract
Collagen fibrils with a main period banding of 610 Å and 220 Å in width were observed in the blastocoel of 72-h embryos of the sea urchin,Strongylocentrotus purpuratus. Non-striated fibrils of 50 Å diameter were also observed. The collagen is seen in highest concentration in the vicinity of mesenchyme cells which are richly endowed with endoplasmic reticulum and secretory vesicles. A role for collagen in cell attachment, orientation and spicule formation is discussed.Keywords
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