Ultrastructure and biochemistry of the pineal organ in deep-sea lanternfishes (Myctophidae)

descriptionPublicationkeyboard_double_arrow_right Article 01 Sep 1988 English Publisher:Springer Science and Business Media LLCJournal:Experientia, volume 44, pages 740-742 (issn: 0014-4754, eissn: 1420-9071,

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Authors: J A, McNulty; M A, Neighbors; M H, Horn;

doi: 10.1007/bf01959146

pmid: 2458283

Ultrastructure and biochemistry of the pineal organ in deep-sea lanternfishes (Myctophidae)

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Abstract

Pineal structural and biochemical adaptations in lanternfishes included: 1) few photoreceptor outer segment discs; 2) conventional synapses between photoreceptors and pineal neurons; and 3) low levels (0-60 pg/pineal) of serotonin compared to those (greater than 1.0 ng/pineal) in the goldfish pineal organ. These findings suggest reduced photosensory and/or neuroendocrine functions in these deep-sea fishes.

Related Organizations

Loyola University Chicago
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California State University, Fullerton
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Keywords

Serotonin, Light, Fishes, Animals, Hydroxyindoleacetic Acid, Pineal Gland

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