Olfaction in the Queensland fruit fly, Bactrocera tryoni. II: Response spectra and temporal encoding characteristics of the carbon dioxide receptors.
Single-unit electrophysiology was used to record the nerve impulses from the carbon dioxide receptors of female Queensland fruit flies, Bactroera tryoni. The receptors responded to stimulation in a phasic-tonic manner and also had a period of inhibition of the nerve impulses after the end of stimulation. at high stimulus intensities. The cell responding to carbon dioxide was presented with a range of environmental odorants and found to respond to methyl butyrate and 2-butanone. The coding characteristics of the carbon dioxide cell and the ability to detect other odorants are discussed, with particular reference to the known behavior of the fly.
Hull
C D
CD
Department of Zoology of Entemology, The University of Queensland, Australia. c.hull@ento.uq.edu.au
Cribb
B W
BW
D000818:Animals; D001522:Behavior, Animal; D002074:Butanones / Q000494:pharmacology; D002087:Butyrates / Q000494:pharmacology; D004175:Diptera / Q000502:physiology*; D004594:Electrophysiology; D009812:Odorants; D011956:Receptors, Cell Surface / Q000502:physiology*; D012903:Smell / Q000502:physiology*
D002074:Butanones; D002087:Butyrates; D011956:Receptors, Cell Surface; C054079:carbon dioxide receptor; C005222:methylethyl ketone; C043811:methyl butyrate