« Previous AbstractPhysiology and glomerular projections of olfactory receptor neurons on the antenna of female Heliothis virescens (Lepidoptera: Noctuidae) responsive to behaviorally relevant odors    Next AbstractA specific male olfactory sensillum detects behaviorally antagonistic hairpencil odorants »

J Comp Physiol A Neuroethol Sens Neural Behav Physiol

Title:		Physiology and antennal lobe projections of olfactory receptor neurons from sexually isomorphic sensilla on male Heliothis virescens
Author(s):		Hillier NK; Vickers NJ;
Address:		"Department of Biology, University of Utah, Room 201 South Biology, Salt Lake City, UT 84112, USA. hillier@biology.utah.edu"
Journal Title:		J Comp Physiol A Neuroethol Sens Neural Behav Physiol
Year:		2007
Volume:		20070413
Issue:		6
Page Number:		649 - 663
DOI:		10.1007/s00359-007-0220-3
ISSN/ISBN:		0340-7594 (Print) 0340-7594 (Linking)
Abstract:		"The neurophysiology and antennal lobe projections of olfactory receptor neurons (ORNs) within sexually isomorphic short trichoid sensilla of male Heliothis virescens (Noctuidae: Lepidoptera) were investigated using cut-sensillum recording and cobalt-lysine staining. A total of 202 sensilla were sorted into 14 possible sensillar categories based on odor responses and physiology of ORNs within. Seventy-two percent of the sensilla identified contained ORNs stimulated by conspecific odors. In addition, a large number of ORNs were specifically sensitive to ss-caryophyllene, a plant-derived volatile (N = 41). Axons originating from ORNs associated with individual sensilla were stained with cobalt lysine (N = 67) and traced to individual glomeruli in the antennal lobe. ORNs with responses to female sex pheromone components exhibited similar axonal projections as those previously described from ORNs in long sensilla trichodea in male H. virescens. Antennal lobe axonal arborizations of ORNs sensitive to hairpencil components were also located in glomeruli near the base of the antennal nerve, whilst those sensitive to plant odorants projected to more medial glomeruli. Comparisons with ORNs described from female H. virescens supports the notion that glomeruli at the base of the antennal nerve are associated with conspecific and interspecific odorants, whereas those located medially are associated with plant volatiles"
Keywords:		"Afferent Pathways/physiology Animals Axons/physiology Coloring Agents Female Image Processing, Computer-Assisted Lepidoptera/*physiology Male Odorants Olfactory Receptor Neurons/*physiology Pheromones/pharmacology Plants/chemistry Sense Organs/anatomy & h;"
Notes:		"MedlineHillier, N K Vickers, N J eng Research Support, U.S. Gov't, Non-P.H.S. Germany 2007/04/14 J Comp Physiol A Neuroethol Sens Neural Behav Physiol. 2007 Jun; 193(6):649-63. doi: 10.1007/s00359-007-0220-3. Epub 2007 Apr 13"