title: Investigation of the chemosensory function of amphids of Syngamus trachea using electrophysiological techniques.
abstract: Syngamus trachea, the gape nematode, has been used as a model to study the chemosensory function of amphids. Extracellular electrophysiological recordings were performed directly on amphids. The amphids were stimulated by blood serum from a host bird and by D-tryptophan. The spike frequency produced by the amphid increased significantly after the application of the serum and the application of D-tryptophan. Two types of amphidial neurones responded to the presence of the stimuli. These extracellular recordings have verified the chemosensory function of the amphids.
authors.affiliation: Entomology and Nematology Department, IACR-Rothamsted, Harpenden, Herts.
authors.forename: E
authors.initials: E
authors.lastname: Riga
authors.forename: R N
authors.initials: RN
authors.lastname: Perry
authors.forename: J
authors.initials: J
authors.lastname: Barrett
authors.forename: M R
authors.initials: MR
authors.lastname: Johnston
mesh_terms: D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001717:Birds / Q000469:parasitology; D002628:Chemoreceptor Cells / Q000187:drug effects / Q000502:physiology*; D004594:Electrophysiology; D005260:Female; D010571:Pest Control; D012679:Sense Organs / Q000187:drug effects / Q000502:physiology; D013320:Strongyloidea / Q000472:pathogenicity / Q000502:physiology*; D014364:Tryptophan / Q000494:pharmacology
chemical_list: D014364:Tryptophan