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Secretion Masses in the Nuclei of the Caudal Neurosecretory Cells of the Teleost Albula vulpes

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Abstract

‘NUCLEAR secretion’ has been reported by a number of students of neurosecretory cells, especially in fish hypothalamic neurones1–7. Neurones exhibiting similar characteristics have been described in the caudal neurosecretory system of two isospondylous teleosts: Albula vulpes and Elops hawaiensis8,9. The caudal neurones of many teleosts may possess various kinds of nuclear inclusions, generally less prominent than those of Albula and Elops, and not necessarily considered as ‘secretion’10–12. Inasmuch as the actual production of proteinaceous secretory product within the nucleus is not consonant with the present conception of the protein-secretory cell, we undertook a re-examination of the caudal neurosecretory neurones in Albula vulpes, the Hawaiian ‘oio’ or bonefish, with the electron microscope.

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Authors and Affiliations

  1. Department of Zoology and its Cancer Research Genetics Laboratory, University of California, Berkeley, California

    RICHARD S. NISHIOKA & HOWARD A. BERN

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  1. RICHARD S. NISHIOKA
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  2. HOWARD A. BERN
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NISHIOKA, R., BERN, H. Secretion Masses in the Nuclei of the Caudal Neurosecretory Cells of the Teleost Albula vulpes. Nature 203, 1191–1192 (1964). https://doi.org/10.1038/2031191a0

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