Distribution of polyanionic sites in the developing gonads and the dorsal mesentery of the chick embryo
Article first published online: 8 FEB 2005
Copyright © 1983 Wiley-Liss, Inc.
The Anatomical Record
Volume 205, Issue 3, pages 321–329, March 1983
How to Cite
Didier, E., Didier, P. and Fargeix, N. (1983), Distribution of polyanionic sites in the developing gonads and the dorsal mesentery of the chick embryo. Anat. Rec., 205: 321–329. doi: 10.1002/ar.1092050309
- Issue published online: 8 FEB 2005
- Article first published online: 8 FEB 2005
- Manuscript Accepted: 28 OCT 1982
- Manuscript Received: 7 OCT 1981
The distribution of glycoconjugates was investigated in the embryonic trunk mesoderm used as a substrat by migrating primordial germ cells (PGCs) by means of ultrastructural cytochemistry. In both mesentery and developing gonads polyanionic sites were abundant in epithelial and mesenchymal cell coats, basal laminae, and extracellular matrices (ECM). In the latter, polyanions distributed on microfibrils and granules were associated with collagen fibers, forming an entangled network. No perferntial association of this fibrillo-granular material with PGCs was observed, suggesting that polyanions present in ECM likely act by promoting inflation of the extracellular spaces rather than by providing mechanical guides for the moving cells.