Ectopic colonization of primordial germ cells in the chick embryo lacking the gonads
β Scribed by Nakamura, Masao ;Kuwana, Takashi ;Miyayama, Yukihiko ;Yoshinaga, Kazuya ;Fujimoto, Toyoaki
- Publisher
- John Wiley and Sons
- Year
- 1991
- Tongue
- English
- Weight
- 627 KB
- Volume
- 229
- Category
- Article
- ISSN
- 0003-276X
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It is known that chick primordial germ cells (PGCs) in early embryonic development migrate via the blood vascular system to colonize the gonadal anlagen. Classically, two factors have been involved in the extravasation of PGCs from the blood stream: chemotactic and mechanical factors. An accurate kn
## 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. Nonβmigrating PGCs were spherical to ovoid with relati
Experiments were conducted to elucidate the factor that influences the concentration of circulating primordial germ cells (cPGCs) in two-day old chick embryos. The concentration of cPGCs was observed to be highest at stage 14 (66.9 Β± 23.2 Β΅l) and decreased thereafter. However, considerable egg to eg