| Title: | Identification of Cattle-Derived Volatiles that Modulate the Behavioral Response of the Biting Midge Culicoides nubeculosus |
| Author(s): | Isberg E; Bray DP; Birgersson G; Hillbur Y; Ignell R; |
| Address: | "Unit of Chemical Ecology, Department of Plant Protection Biology Swedish University of Agricultural Sciences, Box 102, 230 53, Alnarp, Sweden. International Institute for Tropical Agriculture, Oyo Road, Ibadan, Nigeria. Unit of Chemical Ecology, Department of Plant Protection Biology Swedish University of Agricultural Sciences, Box 102, 230 53, Alnarp, Sweden. rickard.ignell@slu.se" |
| DOI: | 10.1007/s10886-015-0663-x |
| ISSN/ISBN: | 1573-1561 (Electronic) 0098-0331 (Linking) |
| Abstract: | "Identification of host-derived volatiles is an important step towards the development of novel surveillance and control tools for Culicoides biting midges. In this study, we identified compounds from headspace collections of cattle hair and urine that modulate the behavioral response of Culicoides nubeculosus, a research model species with a similar host-range as the vectors of Bluetongue disease and Schmallenberg disease in Europe. Combined gas chromatography and electroantennographic detection (GC-EAD) analysis revealed 23 bioactive compounds, of which 17, together with octanal, were evaluated in a two-choice behavioral assay in the presence of CO2. Decanal, 2-phenylethanal, 1-octen-3-ol, 2-ethylhexanol, 3-methylindole, phenol, and 3-ethylphenol elicited attraction of host seeking C. nubeculosus, whereas heptanal, octanal, nonanal, 3-propylphenol, and 4-propylphenol inhibited the insects' attraction to CO2, when compared to CO2 alone. 6-Methyl-5-hepten-2-one, 3-methylphenol, 4-methylphenol, and 4-ethylphenol elicited both attraction and inhibition. The behavioral responses were dependent on the concentration tested. Our results show that cattle-derived odors have the potential to be used for the manipulation of the behavior of Culicoides biting midges" |
| Keywords: | "Animals Behavior, Animal/*drug effects Carbon Dioxide/pharmacology *Cattle Ceratopogonidae/*drug effects/physiology/virology Gas Chromatography-Mass Spectrometry Hair/*chemistry Olfactometry Volatile Organic Compounds/chemistry/*pharmacology/urine Attract;" |
| Notes: | "MedlineIsberg, Elin Bray, Daniel Peter Birgersson, Goran Hillbur, Ylva Ignell, Rickard eng BBS/E/I/00001701/BB_/Biotechnology and Biological Sciences Research Council/United Kingdom Research Support, Non-U.S. Gov't 2015/12/22 J Chem Ecol. 2016 Jan; 42(1):24-32. doi: 10.1007/s10886-015-0663-x. Epub 2015 Dec 21" |
