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Immunocytochemical evidence for the presence of substance P-like peptide in Diphyllobothrium dendriticum

Published online by Cambridge University Press:  06 April 2009

M. K. S. Gustafsson ,
D. Nässel  and
A. Kuusisto
M. K. S. Gustafsson
Affiliation:
Department of Biology, Åbo Akademi University, Artillerigatan 6, SF-20520 Åbo, Finland
D. Nässel
Affiliation:
Department of Zoology, Stockholm University, Svante Arrheniusväg 16, S-10691 Stockholm, Sweden
A. Kuusisto
Affiliation:
Centre for Biotechnology, Artillerigatan 6, SF-20520 Åbo, Finland
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Summary

Substance P immunoreactivity (SP-IR) was detected in the nervous system of the gull-tapeworm Diphyllobothrium dendriticum. The distribution of the SP-IR neurons in the plerocercoid differs from that of other peptidergic and aminergic neurons in the worm. As well as occurring in the ganglionic commissure and along the two main nerve cords, SP-IR neurons are located laterally to the main nerve cords but not dorsally or ventrally. The SP-IR neurons have projections extending to the surface. Bipolar SP-IR neurons with processes to the surface also occur in the tip of the scolex. A sensory function for the SP-IR neurons is suggested.

Keywords

Diphyllobothrium dendriticumsubstance Psensory functionnervous system
Type
Research Article
Information
Parasitology , Volume 106 , Issue 1 , January 1993 , pp. 83 - 89
Copyright
Copyright © Cambridge University Press 1993

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