Journalartikel

Jahr der Veröffentlichung: 1978

Seiten: 137-145

Zeitschrift: Cytobiologie

Bandnummer: 17

Heftnummer: 1

ISSN: 0070-2463

Verlag: Wissenschaftliche Verlagsgesellschaft Stuttgart

Abstract: 
The yolk-nuclei in the oocytes of the teleosts N. barbatulus and P. phoxinus were investigated by EM, autoradiography and ultrahistochemistry. Yolk-nuclei were only found in stage I. They consist of mitochondria, an osmiophilic material and in Noemacheilus partly of dictyosomes. It was demonstrated by marking with [3H]-uridine, that the osmiophilic material contains RNA. The osmiophilic material gets into the juxtanuclear cytoplasm. There it is surrounded by mitochondria. The oocytes of Noemacheilus and Phoxinus contain up to 40 yolk-nuclei, which are only visible by EM. The yolk-nuclei of both species dissolve in early stage II. Their components disperse in the cytoplasm.

Harvard-Zitierstil: RIEHL, R. (1978) ELECTRON MICROSCOPICAL AND AUTORADIOGRAPHICAL STUDIES ON SO-CALLED YOLK-NUCLEI IN OOCYTES OF NOEMACHEILUS-BARBATULUS (L) AND PHOXINUS-PHOXINUS (L) (PISCES, TELEOSTEI), Cytobiologie, 17(1), pp. 137-145

APA-Zitierstil: RIEHL, R. (1978). ELECTRON MICROSCOPICAL AND AUTORADIOGRAPHICAL STUDIES ON SO-CALLED YOLK-NUCLEI IN OOCYTES OF NOEMACHEILUS-BARBATULUS (L) AND PHOXINUS-PHOXINUS (L) (PISCES, TELEOSTEI). Cytobiologie. 17(1), 137-145.