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Investigation of the chemosensory function of amphids of Syngamus trachea using electrophysiological techniques

Published online by Cambridge University Press:  06 April 2009

E. Riga ,
R. N. Perry ,
J. Barrett  and
M. R. L. Johnston
E. Riga
Affiliation:
Entomology and Nematology Department, IACR-Rothatnsted, Harpenden, Herts. AL5 2JQ Institute of Biological Sciences, University of Wales, Aberystwyth, Dyfed SY23 3D A
R. N. Perry
Affiliation:
Entomology and Nematology Department, IACR-Rothatnsted, Harpenden, Herts. AL5 2JQ
J. Barrett
Affiliation:
Institute of Biological Sciences, University of Wales, Aberystwyth, Dyfed SY23 3D A
M. R. L. Johnston
Affiliation:
Institute of Biological Sciences, University of Wales, Aberystwyth, Dyfed SY23 3D A
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Summary

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.

Keywords

Syngamus tracheaamphidselectrophysiological recordingsspikes
Type
Research Article
Information
Parasitology , Volume 111 , Issue 3 , September 1995 , pp. 347 - 351
Copyright
Copyright © Cambridge University Press 1995

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