title: Immunocytochemical evidence for the presence of substance P-like peptide in Diphyllobothrium dendriticum.
abstract: 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.
authors: Department of Biology, Abo Akademi University, Finland.
authors: M K
authors: MK
authors: Gustafsson
authors: D
authors: D
authors: Nässel
authors: A
authors: A
authors: Kuusisto
mesh_terms: D000818:Animals; D004170:Diphyllobothrium / Q000033:anatomy & histology / Q000737:chemistry*; D007150:Immunohistochemistry; D036341:Intercellular Signaling Peptides and Proteins; D009474:Neurons / Q000737:chemistry* / Q000166:cytology; D010455:Peptides / Q000302:isolation & purification*; D012487:Salmonidae / Q000469:parasitology; D014018:Tissue Distribution
chemical_list: D036341:Intercellular Signaling Peptides and Proteins; D010455:Peptides; C016116:substance P-like peptides