Influence of the epithalamic brain region on amphibian chromatophore behavior

M. Duff Davis; Mac E. Hadley

doi:10.1016/0016-6480(79)90045-5

Influence of the epithalamic brain region on amphibian chromatophore behavior

M. Duff Davis, Mac E. Hadley

Pharmacology

Research output: Contribution to journal › Article

Abstract

The possible influence of the epithalamic area on melanophore-stimulating hormone (MSH) release was investigated in Rana berlandieri forreri (Rana pipiens, sensu lato). Electrical stimulation of a specific region on the diencephalic roof resulted in a reversible darkening of skin melanophores. The latency between stimulation and onset of melanophore dispersion averaged from 1 to 3 min. Hypophysectomy, however, prevented the electrical stimulation-induced melanophore response from occurring. Thus, a neuronal, humoral, or integrated neuroendocrine pathway apparently develops from the diencephalon, in proximity to the pineal-subcommissural complex, to regulate pars intermedia MSH secretion.

Original language	English (US)
Pages (from-to)	52-56
Number of pages	5
Journal	General and Comparative Endocrinology
Volume	37
Issue number	1
DOIs	https://doi.org/10.1016/0016-6480(79)90045-5
State	Published - Jan 1979

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ASJC Scopus subject areas

Animal Science and Zoology
Endocrinology

Cite this

Duff Davis, M., & Hadley, M. E. (1979). Influence of the epithalamic brain region on amphibian chromatophore behavior. General and Comparative Endocrinology, 37(1), 52-56. https://doi.org/10.1016/0016-6480(79)90045-5

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10.1016/0016-6480(79)90045-5