Fluorescent histochemistry of the teleost gut: evidence for the presence of serotonergic neurones

The guts of the teleosts Myoxocephalus scorpius, Pleuronectes platessa and Clupea harengus were examined using fluorescent histochemistry and the innervation compared to that in mammals and other lower vertebrates. In Myoxocephalus and Pleuronectes both greeen and yellow fast fading fluorescent nerv...

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Bibliographic Details
Published in:Cell and tissue research 1979-03, Vol.197 (1), p.155-164
Main Author: Watson, A H
Format: Article
Language:English
Subjects:
Adrenergic Fibers - analysis
Adrenergic Fibers - cytology
Animals
Digestive System - innervation
Dopamine - analysis
Fishes - anatomy & histology
Histocytochemistry
Microscopy, Fluorescence
Serotonin - analysis
Species Specificity
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Summary:The guts of the teleosts Myoxocephalus scorpius, Pleuronectes platessa and Clupea harengus were examined using fluorescent histochemistry and the innervation compared to that in mammals and other lower vertebrates. In Myoxocephalus and Pleuronectes both greeen and yellow fast fading fluorescent nerves were found in the intestine. To test whether the yellow nerves might be serotonergic, an attempt was made to extract 5-HT from the intestine of these fish in a region where enterochromaffin cells were absent. Chromatography of extracts showed the presence of 5-HT, and, in Myoxocephalus, dopamine.
ISSN:0302-766X
1432-0878
DOI:10.1007/BF00233560