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

2005 ◽  
Vol 192 (4) ◽  
pp. 351-363 ◽  
Author(s):  
Seong-Gyu Lee ◽  
Mikael A. Carlsson ◽  
Bill S. Hansson ◽  
Julie L. Todd ◽  
Thomas C. Baker
Keyword(s):  
Sex Pheromone ◽  
Olfactory Receptor ◽  
Antennal Lobe ◽  
Helicoverpa Zea ◽  
Olfactory Receptor Neurons ◽  
Sex Pheromone Components ◽  
Pheromone Components ◽  
Receptor Neurons

scholarly journals Olfactory receptor responses to sex pheromone components in the redbanded leafroller moth.

1975 ◽  
Vol 65 (2) ◽  
pp. 179-205 ◽  
Author(s):  
R J O'Connell
Keyword(s):  
Sex Pheromone ◽  
Olfactory Receptor ◽  
Olfactory Receptor Neurons ◽  
Response Frequency ◽  
Active Compounds ◽  
Odor Quality ◽  
Response Characteristics ◽  
Redbanded Leafroller ◽  
Pheromone Components ◽  
Receptor Neurons

Electrical responses of single olfactory receptor neurons of the male redbanded leafroller moth were elicited by each of the principle components of the sex pheromone and six other behaviorally active compounds. Response frequencies to equal intensities of each of these compounds and changes in response frequency with increasing amounts of any one compound, varied from receptor to receptor. These differences in response characteristics appear to be due to factors intrinsic to the olfactory recptor neuron and not to factors external to it. The encoding of odor quality by these receptor neurons cannot be in the simple presence or absence of activity in any one of them. Rather, odor quality may be encoded by the pattern of activity which invariably arises across an ensemble of receptor neurons, each having its own distribution of sensitivities.

A comparison of responses from olfactory receptor neurons of Heliothis subflexa and Heliothis virescens to components of their sex pheromone

2003 ◽  
Vol 190 (2) ◽  
pp. 155-165 ◽  
Author(s):  
T. C. Baker ◽  
S. A. Ochieng’ ◽  
A. A. Cossé ◽  
S. G. Lee ◽  
J. L. Todd ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Heliothis Virescens ◽  
Olfactory Receptor ◽  
Olfactory Receptor Neurons ◽  
Heliothis Subflexa ◽  
Receptor Neurons

Specialized olfactory receptor neurons mediating intra- and interspecific chemical communication in leafminer moths Eriocrania spp.(Lepidoptera: Eriocraniidae)

2002 ◽  
Vol 205 (7) ◽  
pp. 989-998 ◽  
Author(s):  
Mattias C. Larsson ◽  
Eric Hallberg ◽  
Mikhail V. Kozlov ◽  
Wittko Francke ◽  
Bill S. Hansson ◽  
...  
Keyword(s):  
Olfactory Receptor ◽  
Field Trapping ◽  
Sympatric Species ◽  
Morphological Characterization ◽  
Olfactory Receptor Neurons ◽  
Antagonistic Effects ◽  
Pheromone Components ◽  
Receptor Neurons ◽  
Type 3 ◽  
Pheromone Blend

SUMMARY We performed a physiological and morphological characterization of sensilla auricillica in male Eriocrania semipurpurella moths. Each auricillic sensillum contained three olfactory receptor neurons. Responding neurons (87 of 139) could be grouped into five physiological types. Type 1 responded to(R,Z)-6-nonen-2-ol and type 2 to its enantiomer(S,Z)-6-nonen-2-ol, both of which are pheromone components of E. semipurpurella. Type 3 responded to both (R)-heptan-2-ol and(R,Z)-4-hepten-2-ol, which are pheromone components of the sympatric species E. cicatricella. Types 4 and 5 responded to the ketones(Z)-6-nonen-2-one and/or nonan-2-one, which are found in the pheromone glands of female E. semipurpurella. Field-trapping showed that type 3 receptor neurons mediate strongly antagonistic effects of (R)-heptan-2-ol and(R,Z)-4-hepten-2-ol on E. semipurpurella, while nonan-2-one should possibly be included as a synergist in the sex pheromone blend of this species. The attraction of E. cicatricella and E. sparrmannella to compounds mixed with the pheromone blend of E. semipurpurella shows that the pheromone components of E. semipurpurella have little or no antagonistic effects on these species. The morphology and physiology of eriocraniid pheromone sensilla are very similar to those found in the order Trichoptera (caddisflies), suggesting a homology between pheromone detection systems in the two sister orders Lepidoptera and Trichoptera.

scholarly journals Multiple olfactory receptor neurons and their axonal projections in the antennal lobe of the honeybeeApis mellifera

2006 ◽  
Vol 496 (3) ◽  
pp. 395-405 ◽  
Author(s):  
Christina Kelber ◽  
Wolfgang Rössler ◽  
Christoph Johannes Kleineidam
Keyword(s):  
Olfactory Receptor ◽  
Antennal Lobe ◽  
Olfactory Receptor Neurons ◽  
Axonal Projections ◽  
Receptor Neurons
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