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Intraendodermal and intramesenteric migration of anuran amphibian germ cells: Transmission and scanning electron microscopy

✍ Scribed by Martine Delbos; Jean-Daniel Gipouloux; Samira Guennoun

Publisher: John Wiley and Sons
Year: 1982
Tongue: English
Weight: 471 KB
Volume: 171
Category: Article
ISSN: 0362-2525
DOI: 10.1002/jmor.1051710308

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✦ Synopsis

Abstract

Primordial germ cells (PGCs) from the dorsal side of midgut endoderm and from within the dorsal mesentery were examined by transmission and scanning electron microscopy. During migration of these cells, lamellipodia and filopodia, develop in a polarized pattern. Large amounts of extracellular material accumulate around the lamellipodia at the leading end of a migrating cell. It is suggested that the polarized pseudopodia function in conjunction with extracellular matrix as the means by which PGCs move en route to gonadal ridges.

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## Abstract Primordial germ cells (PGCs) of the early chick embryo were examined using scanning electron microscopy. Temporal changes in the form and distribution of surface projections were found to be correlated with migratory phases of PGCs. Non‐migrating PGCs were spherical to ovoid with relati