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Polyribosomes in different stages of the life cycle of the water mold Allomyces arbuscula

Polyribosomes in different stages of the life cycle of the water mold Allomyces arbuscula 203 102 102 1 1 C. Stumm A. F. Croes Department of Microbiology University of Nijmegen Nijmegen Department of Botany University of Nijmegen Nijmegen Abstract Synchronous gametogenesis in the water mold Allomyces arbuscula is blocked by actinomycin D added at the onset of the process. Formation of the male gametangium can be selectively inhibited by administering actinomycin one hr after the induction of gametogenesis. The polyribosome pattern obtained after density gradient centrifugation remains virtually unchanged throughout gametogenesis until a stage immediately preceding maturation of the gametes. When ribosomes from gametes and swarming zygotes are analyzed on gradients, some RNase-sensitive material is found to band in the heavier portion of the gradient. Its presence suggests that some messenger RNA associated with ribosomes is conserved in the swarming cells. During gametogenesis RNA is de novo synthesized and becomes associated with the polyribosomes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Archives of Microbiology Springer Journals

Polyribosomes in different stages of the life cycle of the water mold Allomyces arbuscula

Archives of Microbiology , Volume 102 (1) – Jan 1, 1975

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References (20)

Publisher
Springer Journals
Copyright
Copyright © 1975 by Springer-Verlag
Subject
Life Sciences; Biotechnology; Biochemistry, general; Cell Biology; Ecology; Microbial Ecology; Microbiology
ISSN
0302-8933
eISSN
1432-072X
DOI
10.1007/BF00428355
Publisher site
See Article on Publisher Site

Abstract

203 102 102 1 1 C. Stumm A. F. Croes Department of Microbiology University of Nijmegen Nijmegen Department of Botany University of Nijmegen Nijmegen Abstract Synchronous gametogenesis in the water mold Allomyces arbuscula is blocked by actinomycin D added at the onset of the process. Formation of the male gametangium can be selectively inhibited by administering actinomycin one hr after the induction of gametogenesis. The polyribosome pattern obtained after density gradient centrifugation remains virtually unchanged throughout gametogenesis until a stage immediately preceding maturation of the gametes. When ribosomes from gametes and swarming zygotes are analyzed on gradients, some RNase-sensitive material is found to band in the heavier portion of the gradient. Its presence suggests that some messenger RNA associated with ribosomes is conserved in the swarming cells. During gametogenesis RNA is de novo synthesized and becomes associated with the polyribosomes.

Journal

Archives of MicrobiologySpringer Journals

Published: Jan 1, 1975

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