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A light- and electron microscopic study of primordial germ cells in the zebra fish (Danio rerio)
Deniz Koç, Nazan; Yüce, Rikap.
  • Deniz Koç, Nazan; Sakarya University. Faculty of Science and Letters. Department of Biology. Sakarya. TR
  • Yüce, Rikap; Sakarya University. Faculty of Science and Letters. Department of Biology. Sakarya. TR
Biol. Res ; 45(4): 331-336, 2012. ilus
Artículo en Inglés | LILACS | ID: lil-668682
ABSTRACT
In sexually reproducing organisms, primordial germ cells (PGCs) give rise to the cells of the germ line, the gametes. In many animals, PGCs are set apart from somatic cells early during embryogenesis. This study explores the origin of primordial germ cells (PGCs) of the zebra fish and examines their morphology during early development (1st day-15th day). PGCs were selectively stained by the alkaline phosphatase histochemical reaction and viewed by light and electron microscopy from the time they are first detectable in the yolk sac endoderm. PGCs occurred in the subendodermal space on the syncytial periblast; differing from the surrounding endodermal cells. Later the PGCs moved to between the blastoderm and yolk sac and transferred to the dorsal mesentery where they formed gonadal anlage with mesoderm cells. PGCs were easily distinguished from somatic cells by their morphology and low electron density of their nuclei. Under light microscopy, PCGs were rounded with a distinct cytoplasmic membrane.
Asunto(s)


Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Pez Cebra / Células Germinativas Límite: Animales Idioma: Inglés Revista: Biol. Res Asunto de la revista: Biologia Año: 2012 Tipo del documento: Artículo País de afiliación: Turquía Institución/País de afiliación: Sakarya University/TR

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Texto completo: Disponible Índice: LILACS (Américas) Asunto principal: Pez Cebra / Células Germinativas Límite: Animales Idioma: Inglés Revista: Biol. Res Asunto de la revista: Biologia Año: 2012 Tipo del documento: Artículo País de afiliación: Turquía Institución/País de afiliación: Sakarya University/TR