Journal article

ELECTRON MICROSCOPICAL AND AUTORADIOGRAPHICAL STUDIES ON SO-CALLED YOLK-NUCLEI IN OOCYTES OF NOEMACHEILUS-BARBATULUS (L) AND PHOXINUS-PHOXINUS (L) (PISCES, TELEOSTEI)


Authors list: RIEHL, R

Publication year: 1978

Pages: 137-145

Journal: Cytobiologie

Volume number: 17

Issue number: 1

ISSN: 0070-2463

Publisher: 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.



Citation Styles

Harvard Citation style: 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 Citation style: 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.


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