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Tissue Cell

Title:		Antennal lobe projection patterns of olfactory receptor neurons involved in sex pheromone detection in Spodoptera littoralis (Lepidoptera: Noctuidae)
Author(s):		Ochieng SA; Anderson P; Hansson BS;
Address:		"Department of Ecology, Lund University, Sweden"
Journal Title:		Tissue Cell
Year:		1995
Volume:		27
Issue:		2
Page Number:		221 - 232
DOI:		10.1016/s0040-8166(95)80024-7
ISSN/ISBN:		0040-8166 (Print) 0040-8166 (Linking)
Abstract:		"Pheromone-specific receptor neurons in male and female cotton leafworms, Spodoptera littoralis (Boisd.) (Lepidoptera: Noctuidae) were typed physiologically and traced into the antennal lobe using cobalt lysine as a marker. In male S. littoralis, the macroglomerular complex (MGC), which is responsible for the initial integration of information concerning sex pheromone components, contains three glomerular compartments as revealed in a morphological study. No such specialized structure was seen in the female. In the male, olfactory receptor neurons that responded selectively to stimulation with the major sex pheromone component, (Z)9, (E)11-tetradecadienyl acetate (Z9E11-14:OAc), had arborizations that were restricted to a large glomerulus of the MGC (designated a), situated near the antennal nerve entrance into the antennal lobe. Neurons that were stimulated by (Z)9,(E)12-tetradecadienyl acetate (Z9E12-14:OAc), a second pheromone component, had arborizations in a lateral, smaller glomerulus of the MGC (designated c), while receptor neurons specifically tuned to a behavioural antagonist, (Z)-9-tetradecenol (Z9-14:OH), projected to a medial glomerulus of the MGC (b). In the female, receptor neurons tuned to the major pheromone component projected to a glomerulus situated at the entrance of the antennal nerve. This glomerulus did, however, not have the size or the structure of the male MGC. A second neuron housed in the same sensillum projected its axon to an ordinary glomerulus situated medially in the antennal lobe"
Keywords:		Animals Female Male Microelectrodes Neural Pathways/physiology Olfactory Receptor Neurons/*physiology Sense Organs/*physiology Sex Attractants/*analysis Sex Characteristics Spodoptera/*chemistry Staining and Labeling;
Notes:		"MedlineOchieng, S A Anderson, P Hansson, B S eng Research Support, Non-U.S. Gov't Scotland 1995/04/01 Tissue Cell. 1995 Apr; 27(2):221-32. doi: 10.1016/s0040-8166(95)80024-7"