« Previous AbstractSurface Polar Lipids Differ in Male and Female Phlebotomus papatasi (Diptera: Psychodidae)    Next AbstractSelective production of cis- and trans-verbenol from (-)-and (+)-alpha by a bark beetle »

Ticks Tick Borne Dis

Title:		"Surface lipidome of the lone star tick, Amblyomma americanum, provides leads on semiochemicals and lipid metabolism"
Author(s):		Renthal R; Lohmeyer K; Borges LMF; Perez de Leon AA;
Address:		"Department of Biology, University of Texas at San Antonio, San Antonio, TX, 78249 USA; Department of Biochemistry and Structural Biology, University of Texas Health Science Center, San Antonio, TX, 78229 USA. Electronic address: Robert.Renthal@UTSA.edu. USDA-ARS Knipling-Bushland U.S. Livestock Insects Research Laboratory, and Veterinary Pest Genomics Center, Kerrville, TX, 78029 USA. Instituto de Patologia Tropical e Saude Publica, Universidade Federal de Goias, Goiania, Goias, Brazil"
Journal Title:		Ticks Tick Borne Dis
Year:		2019
Volume:		20180927
Issue:		1
Page Number:		138 - 145
DOI:		10.1016/j.ttbdis.2018.09.009
ISSN/ISBN:		1877-9603 (Electronic) 1877-959X (Print) 1877-959X (Linking)
Abstract:		"Lipids extracted from the surface of the lone star tick, Amblyomma americanum, were analyzed by high resolution mass spectrometry. Prior to lipid extraction, the adult ticks were either unfed or fed on cattle, and the fed ticks were in groups either containing males and females together, or containing only males or females. Cholesteryl esters were found on the surfaces of fed females, and they may provide a more complete description of the composition of the mounting sex pheromone. Dihydrocholesteryl esters were detected on the surfaces of unfed males and females, suggesting a possible role in survival during host-seeking. Dehydrodeoxyecdysone, found on fed females, could be a component of the genital sex pheromone. The most abundant polar surface lipids detected were acylglycerides. High levels of sphingolipids and glycerophospholipids on males fed separately might be derived, in part, from sperm development. A high level of a 20:4 fatty acid, presumably arachidonic acid, was found on the surface of fed females, indicating that it may be a component of the genital sex pheromone. A high level of docosenamide was found on the surface of fed females. Wax esters were found on the surfaces of fed ticks but not on unfed ticks. These esters could be involved in elasticity of the cuticle of engorged females or in wax coating of eggs. N-acylethanolamines were found on the surfaces of male and female ticks fed together, and on male ticks fed separately, but were absent or at low levels on females fed separately and on unfed ticks. This pattern suggests a possible role as a metabolic coordination primer pheromone"
Keywords:		Animal Shells/metabolism Animals Arachnid Vectors/*metabolism Cattle Cattle Diseases/*prevention & control Female Ixodidae/*metabolism *Lipid Metabolism Lipids/analysis/isolation & purification Male Pheromones/*metabolism Tick Infestations/prevention & co;
Notes:		"MedlineRenthal, Robert Lohmeyer, Kim Borges, Ligia M F Perez de Leon, Adalberto A eng S10 RR025111/RR/NCRR NIH HHS/ S10 RR031586/RR/NCRR NIH HHS/ Research Support, N.I.H., Extramural Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Netherlands 2018/10/07 Ticks Tick Borne Dis. 2019 Jan; 10(1):138-145. doi: 10.1016/j.ttbdis.2018.09.009. Epub 2018 Sep 27"