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J Exp Biol

Title:		Specialized olfactory receptor neurons mediating intra- and interspecific chemical communication in leafminer moths Eriocrania spp. (Lepidoptera: Eriocraniidae)
Author(s):		Larsson MC; Hallberg E; Kozlov MV; Francke W; Hansson BS; Lofstedt C;
Address:		"Department of Ecology, Lund University, SE-223 62 Lund, Sweden.mattias.larsson@vv.lu.se"
Journal Title:		J Exp Biol
Year:		2002
Volume:		205
Issue:		Pt 7
Page Number:		989 - 998
DOI:		10.1242/jeb.205.7.989
ISSN/ISBN:		0022-0949 (Print) 0022-0949 (Linking)
Abstract:		"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"
Keywords:		"Action Potentials/drug effects *Animal Communication Animals Dose-Response Relationship, Drug Electrophysiology Isomerism Ketones/pharmacology Male Microscopy, Electron Moths/drug effects/*physiology Olfactory Receptor Neurons/chemistry/*physiology/ultras;"
Notes:		"MedlineLarsson, Mattias C Hallberg, Eric Kozlov, Mikhail V Francke, Wittko Hansson, Bill S Lofstedt, Christer eng Research Support, Non-U.S. Gov't England 2002/03/28 J Exp Biol. 2002 Apr; 205(Pt 7):989-98. doi: 10.1242/jeb.205.7.989"