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Exp Appl Acarol

Title:		Chemical composition of lipophylic compounds from the body surface of unfed adult Ixodes persulcatus ticks (Acari: Ixodidae)
Author(s):		Tkachev AV; Dobrotvorsky AK; Vjalkov AI; Morozov SV;
Address:		"Novosibirsk Institute of Organic Chemistry, Russia. atkachev@noich.nsc.ru"
Journal Title:		Exp Appl Acarol
Year:		2000
Volume:		24
Issue:		2
Page Number:		145 - 158
DOI:		10.1023/a:1006430323587
ISSN/ISBN:		0168-8162 (Print) 0168-8162 (Linking)
Abstract:		"Chemical compositions of ethereal extracts of the body surface of unfed male and female Ixodes persulcatus ticks (Acari: Ixodidae) were studied by gas chromatography using mass-spectrometric detection. More than 100 different organic compounds were detected. The predominant components were saturated fatty hydrocarbons, saturated and unsaturated fatty acids, aldehydes, squalene, cholesterol and cholesterol derivatives. A number of compounds found in I. persulcatus are known as components of pheromones or constituents of dermal gland secretions in tick species of the genus Amblyomma: nonanoic acid, saturated fatty acids having from 14 to 16 carbons, and squalene. Saturated fatty aldehydes have not been reported previously as body surface components of hard ticks. Substituted phenols were not found in the extracts, although they are known as common components of sex and attraction-aggregation-attachment pheromones in Amblyomma ticks. With a few exceptions (henicosanal, 2,4-holestadiene and two unidentified cholesterol derivatives), there was no marked difference in composition of surface components between male and female I. persulcatus. The possible role of the different chemical groups in communication between I. persulcatus ticks is discussed"
Keywords:		"Aldehydes/analysis Animals Cholesterol/analogs & derivatives/analysis Fatty Acids, Unsaturated/analysis Female Gas Chromatography-Mass Spectrometry Hydrocarbons/analysis Lipids/*analysis Male Russia Sex Attractants/*analysis Squalene/analysis Ticks/*chemi;"
Notes:		"MedlineTkachev, A V Dobrotvorsky, A K Vjalkov, A I Morozov, S V eng Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Netherlands 2000/12/07 Exp Appl Acarol. 2000 Feb; 24(2):145-58. doi: 10.1023/a:1006430323587"