Investigation of the chemosensory function of amphids of Syngamus trachea using electrophysiological techniques.
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.
Riga
E
E
Entomology and Nematology Department, IACR-Rothamsted, Harpenden, Herts.
Perry
R N
RN
Barrett
J
J
Johnston
M R
MR
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
D014364:Tryptophan