PMID: 9163926May 1, 1997Paper

Multiple excitatory receptor types on individual olfactory neurons: implications for coding of mixtures in the spiny lobster

Journal of Comparative Physiology. A, Sensory, Neural, and Behavioral Physiology
S I Cromarty, Charles D Derby

Abstract

The aim of our paper was to investigate whether single olfactory receptor neurons (ORNs) of the spiny lobster Panulirus argus functionally express more than one type of receptor, examine the consequences of this on coding of mixtures, and compare principles of odorant mixture coding by spiny lobsters with that by the channel catfish, which has been studied extensively using the same experimental and analytical procedures (Caprio et al. 1989; Kang and Caprio 1991). We examined responses of individual taurine-sensitive ORNs to binary mixtures of excitatory compounds, either competitive agonists (taurine, beta-alanine, hypotaurine) or non-competitive agonists (taurine, L-glutamate, ammonium chloride, adenosine-5'-monophosphate). Responses to mixtures were compared to two indices: mixture discrimination index (MDI) and independent component index (ICI). Binary mixtures of competitive agonists had MDI values close to 1.0, as expected for competitors. Mixtures of non-competitive agonists had ICI values averaging 0.83, indicating the effects of the components are not independent. We conclude that individual olfactory cells of spiny lobsters can express more than one type of receptor mediating excitation, one of which typically has a m...Continue Reading

Citations

Mar 10, 2006·Journal of Chemical Ecology·Thomas EltzKlaus Lunau
Jun 4, 2008·Journal of Chemical Ecology·Charles D Derby, Peter W Sorensen
Jun 16, 2000·Physiology & Behavior·C D Derby
Nov 11, 1999·Brain Research. Cognitive Brain Research·A Jinks, D G Laing
Jan 15, 2013·Chemical Senses·Daniel MünchC Giovanni Galizia
Dec 6, 2003·The European Journal of Neuroscience·Patricia Duchamp-ViretMichel A Chaput
Aug 26, 2006·The European Journal of Neuroscience·Nina DeisigJean-Christophe Sandoz
May 20, 2020·Chemical Senses·Timothy S McClintockPatrick Breheny
Aug 7, 2002·Journal of Neurophysiology·Pascale GiraudetMichel Chaput
Aug 1, 1997·Journal of Neurophysiology·J I Glendinning, T T Hills
Aug 13, 1999·Journal of Neurophysiology·K Ogawa, J Caprio

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