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Evidence of adrenergic and cholinergic receptors in teleost melanophores

, : Evidence of adrenergic and cholinergic receptors in teleost melanophores. Comparative Biochemistry & Physiology C Comparative Pharmacology 70(2): 293-296

Melanophores of Bathygobius soporator aggregated in the presence of highly concentrated catecholamines, antagonized by phentolamine. In lower doses, the catecholamines promoted a melanosome dispersion, blocked by propranolol. Isoproterenol was unable to induce pigment dispersion. Melanosome dispersion was obtained with cholinester and alkaloid treatments, inhibited by atropine and d-tubocurarine. The presence of 2 different types of receptors are assumed; adrenoceptors, uncharacterized in respect to their .alpha.- or .beta.-nature, and cholinoceptors, undifferentiated in relation to muscarinic or nicotinic nature.

Accession: 005411200

PMID: 6118232

DOI: 10.1016/0306-4492(81)90068-X

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