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Neuroreport

Title:		Esterase activity in the olfactory sensilla of the silkmoth Antheraea polyphemus
Author(s):		Maida R; Ziegelberger G; Kaissling KE;
Address:		"Istituto di Industrie Agrarie, Pisa, Italy"
Journal Title:		Neuroreport
Year:		1995
Volume:		6
Issue:		5
Page Number:		822 - 824
DOI:		10.1097/00001756-199503270-00029
ISSN/ISBN:		0959-4965 (Print) 0959-4965 (Linking)
Abstract:		"We studied in individual males of Antheraea polyphemus the activity of the sensillar esterase, a pheromone-degrading enzyme present in the sensillum lymph surrounding the olfactory receptor cells. In parallel, receptor potentials from single pheromone-sensitive sensilla trichodea were recorded. Our screening revealed a large variability of the enzyme activity in individuals with similar electrophysiological responses. In some moths the sensillar esterase was not detectable, i.e. present with 100-fold less activity. However, such variable esterase activity showed no correlation to the time course of the receptor potential. Thus, enzymatic pheromone degradation does not seem to be involved in the rapid pheromone inactivation at the end of the stimulus, but rather serves as the final pheromone sequestration step"
Keywords:		"Animals Bombyx/*enzymology Esterases/metabolism/*physiology Evoked Potentials/physiology Kinetics Male Receptors, Odorant/*metabolism Sex Attractants/*metabolism;"
Notes:		"MedlineMaida, R Ziegelberger, G Kaissling, K E eng England 1995/03/27 Neuroreport. 1995 Mar 27; 6(5):822-4. doi: 10.1097/00001756-199503270-00029"