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Location of glycogen in spermatids and spermatozoa of the shipworm, Bankia australis (Teredinidae, Bivalvia, Mollusca)


The periodic acid-thiocarbohydrazide-silver proteinate technique and α-amylase digestion were used to locate glycogen in the spermatids and sperms of the bivalve Bankia australis. Glycogen was found in the middle piece and around the acrosome in spermatozoa, apparently randomly scattered throughout the cytoplasm of young spermatids, and in a cytoplasmic bead in old spermatids.

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Correspondence to Dr. J. D. Popham.

Additional information

The authors with to thank Associate Professor E. van Lennep of the Department of Histology and Embryology, University of Sydney, for his helpful comments on the preparation of the manuscript.

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Popham, J.D., Dickson, M.R. Location of glycogen in spermatids and spermatozoa of the shipworm, Bankia australis (Teredinidae, Bivalvia, Mollusca). Cell Tissue Res. 164, 519–524 (1975).

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Key words

  • Spermiogenesis
  • Bankia australis
  • Glycogen