PMID: 14406005Jun 1, 1960Paper

The lamellar systems of cytoplasmic membranes in dividing spermatogenic cells by Drosophila virilis

The Journal of Biophysical and Biochemical Cytology
S ITO

Abstract

Spermatogenic cells of Drosophila virilis were studied by light and electron microscopy. The persistence of a "nuclear wall" during the meiotic divisions has been reported by a number of early cytologists, but this interpretation has been a subject of debate. Electron micrographs of dividing spermatocytes reveal the presence of multiple layers of paired membranes surrounding the nuclear region. These lamellar membrane systems are not typical of the nuclear envelope, but were interpreted as such by light microscopists. The membranes constituting a pair are separated by an interspace of approximately 100 A and successive pairs are 200 to 400 A apart. These spacings are similar but not identical to those found in the lamellar systems of the Golgi complex. The cisternae of the endoplasmic reticulum in this material are devoid of attached ribonucleoprotein particles, are more precisely ordered than in vertebrate cells, and show a uniform, narrow intracisternal space of approximately 100 A. The conspicuous asters appear to be made up of similar paired membranes radiating from the centriolar region. The primary spermatocyte has numerous dictyosomes and a well developed endoplasmic reticulum in cisternal form, but no typical Golgi comp...Continue Reading

References

Jan 1, 1954·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·H ELFTMAN
Dec 1, 1953·The Anatomical Record·K R PORTER, J BLUM
May 25, 1955·The Journal of Biophysical and Biochemical Cytology·M L WATSON
May 25, 1956·The Journal of Biophysical and Biochemical Cytology·C H CHU, C A SWINYARD
Sep 25, 1957·The Journal of Biophysical and Biochemical Cytology·J B CAULFIELD
Mar 25, 1958·The Journal of Biophysical and Biochemical Cytology·D W FAWCETT, S ITO
Sep 25, 1958·The Journal of Biophysical and Biochemical Cytology·N FEDER, R L SIDMAN
May 25, 1959·The Journal of Biophysical and Biochemical Cytology·D W FAWCETTD SLAUTTERBACK
Aug 1, 1959·Experimental Cell Research·R BARERG A MEEK
Oct 1, 1959·The Journal of Biophysical and Biochemical Cytology·M L WATSON

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Citations

Jan 1, 1969·Zeitschrift für Zellforschung und mikroskopische Anatomie·E A Koch, R C King
Jan 1, 1961·Zeitschrift für Zellforschung und mikroskopische Anatomie·G I KAYEH YAMAMOTO
Oct 28, 1965·Zeitschrift für Zellforschung und mikroskopische Anatomie·B Tandler, L G Moriber
Jun 1, 1966·Proceedings of the National Academy of Sciences of the United States of America·M Feldman
Oct 1, 1961·The Journal of Biophysical and Biochemical Cytology·R C BUCK
Nov 1, 1961·The Journal of Biophysical and Biochemical Cytology·P HARRIS
Dec 1, 1972·The Journal of Cell Biology·B J Gulyas
Jul 1, 1967·Journal of Ultrastructure Research·W J Dougherty, M M Lee
Sep 1, 1996·Molecular Reproduction and Development·L L TresA L Kierszenbaum
May 1, 1971·Journal of Morphology·Robert C King, Hiromu Akai
Nov 1, 1972·The Anatomical Record·D SzollosiR P Donahue
May 1, 1969·Experimental Cell Research·S J SmithH Busch
Dec 1, 1972·Journal of Ultrastructure Research·H P StanleyR F Wilkinson

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