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Juxtanuclear changes during the early spermatogenesis in Lebistes reticulatus (Guppy)

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Summary

The sperm cell of Lebistes reticulatus during Spermatogenesis is studied. The nuclear differentiation correlate to the flagellar outgrowth. Differential distribution in the chromatin condensation corresponds to a new membrane synthesis at the centriolar side of the nucleus. The fan-shaped microtubular bundle in Juxtanuclear position is described and its function as a stabilizing entity is discussed. At the centriolar complex satellites and an intercentriolar lamellated body are investigated. In submicroscopic details the sperm cell of Lebistes distinctively differs from other species previously described.

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Authors and Affiliations

  1. The Electron Microscope Laboratory, University of Helsinki, Finland

    Rolf Grönberg & Antti Telkkä

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  1. Rolf Grönberg
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  2. Antti Telkkä
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Additional information

The present investigation was supported by a grant from the Pehr Oscar Klingendahl Foundation.

The authors wish to thank Mr. Mauri Nyholm, M. Sc., for his technical advices and Miss Maria Sjöstedt for preparing the specimens.

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Grönberg, R., Telkkä, A. Juxtanuclear changes during the early spermatogenesis in Lebistes reticulatus (Guppy). Z. Zellforsch. 84, 342–349 (1967). https://doi.org/10.1007/BF00334751

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  • DOI: https://doi.org/10.1007/BF00334751

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