Olfactory receptor neurons specific to chiral sex pheromone components in male and female Anomala cuprea beetles (Coleoptera: Scarabaeidae)

1999 ◽  
Vol 184 (4) ◽  
pp. 353-359 ◽  
Author(s):  
M. C. Larsson ◽  
W. S. Leal ◽  
B. S. Hansson
Keyword(s):  
Sex Pheromone ◽  
Olfactory Receptor ◽  
Olfactory Receptor Neurons ◽  
Male And Female ◽  
Anomala Cuprea ◽  
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 Identification and Functional Characterization of Two Putative Pheromone Receptors in the Potato Tuber Moth, Phthorimaea operculella

2021 ◽  
Vol 11 ◽  
Author(s):  
Xiaoli He ◽  
Yajie Cai ◽  
Jinglei Zhu ◽  
Mengdi Zhang ◽  
Yadong Zhang ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Potato Tuber ◽  
Expression System ◽  
Functional Characterization ◽  
Phthorimaea Operculella ◽  
Potato Tuber Moth ◽  
Sex Pheromone Components ◽  
Lepidopteran Insects ◽  
Pheromone Components ◽  
Receptor Neurons

Pheromones are a kind of signal produced by an animal that evoke innate responses in conspecifics. In moth, pheromone components can be detected by specialized olfactory receptor neurons (OSNs) housed in long sensilla trichoids on the male antennae. The pheromone receptors (PRs) located in the dendrite membrane of OSNs are responsible for pheromone sensing in most Lepidopteran insects. The potato tuber moth Phthorimaea operculella is a destructive pest of Solanaceae crops. Although sex attractant is widely used in fields to monitor the population of P. operculella, no study has been reported on the mechanism the male moth of P. operculella uses to recognize sex pheromone components. In the present study, we cloned two pheromone receptor genes PopeOR1 and PopeOR3 in P. operculella. The transcripts of them were highly accumulated in the antennae of male adults. Functional analysis using the heterologous expression system of Xenopus oocyte demonstrated that these two PR proteins both responded to (E, Z)-4,7–13: OAc and (E, Z, Z)-4,7,10–13: OAc, the key sex pheromone components of P. operculella, whilst they responded differentially to these two ligands. Our findings for the first time characterized the function of pheromone receptors in gelechiid moth and could promote the olfactory based pest management of P. operculella in the field.

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