| Title: | Volatiles from Merino fleece evoke antennal and behavioural responses in the Australian sheep blow fly Lucilia cuprina |
| Author(s): | Yan G; Liu S; Schlink AC; Flematti GR; Brodie BS; Bohman B; Greeff JC; Vercoe PE; Hu J; Martin GB; |
| Address: | "UWA Institute of Agriculture, The University of Western Australia, Crawley, WA, Australia. School of Molecular Sciences, The University of Western Australia, Crawley, WA, Australia. Department of Biological Sciences, Ohio University, Athens, OH, U.S.A. Department of Primary Industries and Regional Development, South Perth, WA, Australia. College of Animal Science and Technology, Northwest A&F University, Yangling, China" |
| ISSN/ISBN: | 1365-2915 (Electronic) 0269-283X (Linking) |
| Abstract: | "To identify flystrike-related volatile compounds in wool from Merino sheep, the attractiveness of wool to Lucilia cuprina Wiedmann (Diptera: Calliphoridae) was examined. First, a selection of wool samples guided by previous knowledge of sheep lines, predicted to be more susceptible or more resistant to flystrike, was tested. The attractiveness of the 10 samples selected was not associated with field susceptibility: two samples from the more resistant line were identified as most attractive and two samples from the more susceptible line were identified as least attractive, based on the behavioural assays with gravid flies. Comparison of the headspace volatiles of these samples, using solid phase microextraction and gas chromatography-mass spectrometry-electroantennographic detection, revealed octanal and nonanal to be present in the attractive wool samples that elicited responses from the fly antenna. Furthermore, the two compounds were not present in wool that was least attractive to L. cuprina. In laboratory bioassays, octanal and nonanal evoked antennal and behavioural responses in gravid L. cuprina, thus confirming their potential role as semiochemicals responsible for attracting L. cuprina to Merino sheep" |
| Keywords: | Aldehydes/metabolism Animals *Chemotaxis Diptera/drug effects/*physiology Female Odorants/*analysis Pheromones/*metabolism Sheep/*metabolism Volatile Organic Compounds/*metabolism Wool/chemistry Calliphoridae Diptera Gc-ead nonanal octanal semiochemical s; |
| Notes: | "MedlineYan, G Liu, S Schlink, A C Flematti, G R Brodie, B S Bohman, B Greeff, J C Vercoe, P E Hu, J Martin, G B eng Research Support, Non-U.S. Gov't England 2019/05/29 Med Vet Entomol. 2019 Dec; 33(4):491-497. doi: 10.1111/mve.12383. Epub 2019 May 28" |
