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« Previous AbstractNaive and conditioned responses of Culex pipiens pipiens biotype molestus (Diptera: Culicidae) to flower odors    Next AbstractThe impact of nitrogen oxides concentration decreases on ozone trends in the USA »

J Chem Ecol


Title:Floral odors of Silene otites: their variability and attractiveness to mosquitoes
Author(s):Jhumur US; Dotterl S; Jurgens A;
Address:"Department of Plant Systematics, University of Bayreuth, 95440, Bayreuth, Germany. jhumurjb@yahoo.com"
Journal Title:J Chem Ecol
Year:2008
Volume:20071205
Issue:1
Page Number:14 - 25
DOI: 10.1007/s10886-007-9392-0
ISSN/ISBN:0098-0331 (Print) 0098-0331 (Linking)
Abstract:"Inflorescence scent samples from nine populations of dioecious Silene otites, a plant pollinated by moths and mosquitoes, were collected by dynamic headspace extraction. Sixty-three scent samples were analyzed by gas chromatography-mass spectrometry. Out of 38 found, 35 compounds were identified, most of which were monoterpenoids, fatty acid derivatives, and benzenoids. Phenyl acetaldehyde was the most dominant compound in the majority of samples. The variability in scent composition was high, and population and sex differences were found. Nevertheless, wind tunnel experiments proved similar attraction of Culex pipiens pipiens biotype molestus mosquitoes to the inflorescence odor of S. otites of different populations, indicating that different blends are similarly attractive to mosquitoes. The electrophysiological responses of mosquitoes to the 12 most common and abundant odor compounds of S. otites differed. Linalool oxide (furanoid) and linalool evoked the strongest responses in male and female mosquitoes, and (Z)-3-hexenyl acetate was strongly active in females. Medium responses were evoked in males by (Z)-3-hexenyl acetate, in females by benzaldehyde and methyl salicylate, and in both sexes by lilac aldehyde, lilac alcohol, and linalool oxide (pyranoid)"
Keywords:"Animals Behavior, Animal/drug effects Culex/*drug effects/physiology Electrophysiology Female Flowers/*chemistry Geography Male Odorants/*analysis Pheromones/*analysis/*pharmacology Sense Organs/drug effects/physiology Silene/*chemistry;"
Notes:"MedlineJhumur, Umma Salma Dotterl, Stefan Jurgens, Andreas eng Comparative Study Research Support, Non-U.S. Gov't 2007/12/07 J Chem Ecol. 2008 Jan; 34(1):14-25. doi: 10.1007/s10886-007-9392-0. Epub 2007 Dec 5"

 
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