Localization of catecholamine-containing nerve fibres in the branchial heart and cardiac ganglion of the common cuttlefish Sepia officinalis L. (cephalopoda) |
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Authors: | Fiedler A Schipp R |
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Institution: | Institut für Allgemeine und Spezielle Zoologie, Justus Liebig Universit?t, D-6300 Giessen, FRG, and Station de Biologie Marine d'Arcachon, F-33120 Arcachon, France. |
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Abstract: | The innervation of the branchial heart of Sepia officinalis was examined using TEM and glyoxylic acid induced fluorescence. In the cardiac ganglion and in cardiac nerves bluish-green fluorophores were seen associated with perikarya and varicose nerve fibres. Microspectrofluorometric analysis provided clear evidence that monoaminergic neurons in the branchial heart contain only catecholamines. Considering pharmacological data, it is more than likely that 5-hydroxytryptamine (serotonin) is not present in this system. |
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Keywords: | Branchial heart innervation glyoxylic add fluorescence catecholamine-containing neurons Sepia officinalis |
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