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PMID: 28304458 Published · ppublish English Journal Article

Fine structural changes in theDrosophila oocyte nucleus during a short period of RNA synthesis : An autoradiographic and ultrastructural study of RNA synthesis in the oocyte nucleus ofDrosophila.

Wilhelm Roux' Archiv fur Entwicklungsmechanik der Organismen ·Vol. 165 ·No. 1 ·1970-03-00 ·Pages 8-25

Mahowald AP, Tiefert M

Abstract

H3-uridine was injected into the abdomen ofD. melanogaster andD. immigrans and after 10, 30, 60 and 120 min of incorporation, the ovaries were prepared for autoradiography. The oocyte nucleus was found to synthesize RNA during a short period of vitellogenesis (stage 10A). Ultrastructural studies of the oocyte nucleus were made at the stage active in RNA synthesis and many electron-dense structures were found to appear at this time. Since none of these structures resembled nucleoli in fine structure, it is suggested that the RNA synthesized is non-ribosomal. Other ultrastructural modifications of the oooyte nucleus are presented and discussed.

Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Mahowald A P
Department of Biology, Marquette University, Milwaukee, Wisconsin.
Tiefert M
Department of Biology, Marquette University, Milwaukee, Wisconsin.
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Article Info
Journal
Wilhelm Roux' Archiv fur Entwicklungsmechanik der Organismen
Abbr.
Wilhelm Roux Arch Entwickl Mech Org
ISSN
0043-5546
DOI
10.1007/BF00576994
Published
1970-03-00
Pages
8-25
Language
English
Region
Germany
NLM ID
7508795
External Links
PubMed source DOI: 10.1007/BF00576994 View journal details
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