| Title: | Naive and conditioned responses of Culex pipiens pipiens biotype molestus (Diptera: Culicidae) to flower odors |
| Author(s): | Jhumur US; Dotterl S; Jurgens A; |
| Address: | "Department of Plant Systematics, University of Bayreuth, 95440 Bayreuth, Germany" |
| ISSN/ISBN: | 0022-2585 (Print) 0022-2585 (Linking) |
| Abstract: | "Flower odors are important signals for chemical communication between plants and flower visitors. Here, we studied the naive responses of Culex pipiens pipiens biotype molestus Forskal 1775 (Diptera: Culicidae) to typical flower odors and assessed the learning capacity of mosquitoes to floral volatiles. The odor compounds used in the bioassay, phenyl acetaldehyde, veratrole, and 2-methoxyphenol, are typically found in the floral odor of Silene otites (L.) Wibel, a plant that is pollinated by nectar-drinking mosquitoes and moths, and/or in other closely related Silene species. Wind tunnel bioassays with a mixture of these compounds revealed that attraction of mosquitoes to odors was positively correlated with time passed since the last feeding. In single component bioassays, mosquitoes showed strong innate responses to phenyl acetaldehyde and only moderate or weak responses to veratrole and 2-methoxyphenol. Furthermore, in comparison with naive mosquitoes, conditioned mosquitoes were significantly more attracted to the mixture and single volatiles. These results indicate that naive mosquitoes are effectively attracted by appropriate floral scent compounds and that learning can increase the attractiveness of these compounds" |
| Keywords: | Acetaldehyde Analysis of Variance Animals Anisoles Biological Assay Culex/*physiology Flowers/*chemistry Guaiacol Learning/*physiology *Odorants Silene/*chemistry Smell/*physiology Time Factors; |
| Notes: | "MedlineJhumur, Umma Salma Dotterl, Stefan Jurgens, Andreas eng Comparative Study Research Support, Non-U.S. Gov't England 2006/12/14 J Med Entomol. 2006 Nov; 43(6):1164-70" |
