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  Antennal lobe projection destinations of Helicoverpa zea male olfactory receptor neurons responsive to heliothine sex pheromone components

Lee, S., Carlsson, M., Hansson, B., Todd, J., & Baker, T. (2006). Antennal lobe projection destinations of Helicoverpa zea male olfactory receptor neurons responsive to heliothine sex pheromone components. Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology, 192(4), 351-363. doi:10.1007/s00359-005-0071-8.

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EXT255.pdf (Publisher version), 875KB
 
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Lee, SG, Author
Carlsson, MA, Author
Hansson, Bill1, Author           
Todd, JL, Author
Baker, TC, Author
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1External Organizations, ou_persistent22              

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 Abstract: We used single sensillum recordings to define male Helicoverpa zea olfactory receptor neuron physiology followed by cobalt staining to trace the axons to destination glomeruli of the antermal lobe. Receptor neurons in type A sensilla that respond to the major pheromone component, (Z)-11-hexadecenal, projected axons to the cumulus of the macroglomerular complex (MGC). In approximately 40% of these sensilla a second receptor neuron was stained that projected consistently to a specific glomerulus residing in a previously unrecognized glomerular complex with six other glomeruli stationed immediately posterior to the MGC. Cobalt staining corroborated by calcium imaging showed that receptor neurons in type C sensilla sensitive to (Z)-9-hexadecenal projected to the dorsomedial posterior glomerulus of the MGC, whereas the co-compartmentalized antagonist-sensitive neurons projected to the dorsomedial anterior glomerulus. We also discovered that the olfactory receptor neurons in type B sensilla exhibit the same axonal projections as those in type C sensilla. Thus, it seems that type B sensilla are anatomically type C with regard to the projection destinations of the two receptor neurons, but physiologically one of the receptor neurons is now unresponsive to everything except (Z)-9-tetradecenal, and the other responds to none of the pheromone-related odorants tested.

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 Dates: 2006
 Publication Status: Issued
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 Identifiers: ISI: 000237729800002
DOI: 10.1007/s00359-005-0071-8
Other: EXT255
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Title: Journal of Comparative Physiology A-Neuroethology Sensory Neural and Behavioral Physiology
  Other : J. Comp. Physiol. A -Neuroethol. Sens. Neural Behav. Physiol.
Source Genre: Journal
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Publ. Info: Heidelberg : Springer Verlag Heidelberg :
Pages: - Volume / Issue: 192 (4) Sequence Number: - Start / End Page: 351 - 363 Identifier: ISSN: 0340-7594
CoNE: https://pure.mpg.de/cone/journals/resource/954925519626