| Morpho-functional identification of abdominal olfactory receptors in the midge Culicoides imicola. | |
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MedLine Citation:
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PMID: 20658345 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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The aim of the present study was to examine the presence and the possible role of abdominal olfactory sensilla in Culicoides imicola mediating the search for potential hosts and oviposition sites, by means of a morphological, electrophysiological and behavioural approach. The results reported here show that in the midge C. imicola the whole abdomen, comprising the ovipositor, are endowed with three morphotypes of multiporous sensilla that display olfactory sensitivity towards kairomones related to the host-animal skin such as L: -(+)-lactic acid and 1-octen-3-ol, to the host-animal urine such as 3-ethylphenol and 4-propylphenol, and to the potent attractant sesame seed oil. Electrophysiological and behavioural data for the first time suggest in the midge the involvement of abdominal olfactory structures in the choice of the oviposition sites and allow in discussing their possible role in the host-animal localisation. Field experiments showed that light traps baited with the aforementioned compounds elicited a stronger degree of attractiveness on midges with respect to the unbaited traps (control), although to a different extent. Our results, while implying a number of considerations concerning the role of molecules tested as kairomones, also suggest their use in the control of the midge C. imicola population. |
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Authors:
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Giorgia Sollai; Paolo Solari; Francesco Loy; Carla Masala; Roberto Crnjar; Anna Liscia |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2010-07-25 |
Journal Detail:
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Title: Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology Volume: 196 ISSN: 1432-1351 ISO Abbreviation: J. Comp. Physiol. A Neuroethol. Sens. Neural. Behav. Physiol. Publication Date: 2010 Nov |
Date Detail:
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Created Date: 2010-10-25 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101141792 Medline TA: J Comp Physiol A Neuroethol Sens Neural Behav Physiol Country: Germany |
Other Details:
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Languages: eng Pagination: 817-24 Citation Subset: IM |
Affiliation:
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Section of General Physiology, Department of Experimental Biology, University of Cagliari, Cittadella Universitaria, SS 554 Km 4.5, 09042, Monserrato (CA), Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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