| Author | Duran, Katherine Dayan Mosquera | |
| Author | Khan, Zaid | |
| Author | Wondwosen, Betelehem | |
| Author | Alsanius, Beatrix | |
| Author | Hill, Sharon R. | |
| Author | Ignell, Rickard | |
| Author | Lorenzo, Marcelo Gustavo | |
| Access date | 2023-01-26T19:16:39Z | |
| Available date | 2023-01-26T19:16:39Z | |
| Document date | 2023 | |
| Citation | DURAN, Katherine Dayann Mosquera et al. Odor-mediated response of gravid Aedes aegypti to mosquito-associated symbiotic bacteria. Acta Tropica, v. 237, p. 1-6, 106730, 2023. | en_US |
| ISSN | 0001-706X | en_US |
| URI | https://www.arca.fiocruz.br/handle/icict/56648 | |
| Language | eng | en_US |
| Publisher | Elsevier | en_US |
| Rights | restricted access | |
| Title | Odor-mediated response of gravid Aedes aegypti to mosquito-associated symbiotic bactéria | en_US |
| Type | Article | |
| DOI | 10.1016/j.actatropica.2022.106730 | |
| Abstract | Complex oviposition decisions allow gravid Aedes aegypti mosquitoes to select suitable sites for egg-laying to increase the probability that their progeny will thrive. The bacterial communities present in larval niches influence mosquito oviposition behavior, and gravid mosquitoes transmit key microbial associates to breeding sites during oviposition. Our study evaluated whether symbiotic Klebsiella sp., which are strongly associated with mosquitoes, emit volatiles that affect mosquito oviposition decisions. Dual-choice behavioral assays demonstrated that volatile organic compounds emitted by Klebsiella sp. induce a preference in oviposition decisions by Ae. aegypti. Bacterial headspace volatiles were sampled by solid-phase microextraction, and subsequent combined gas chromatography and electroantennogram detection analysis, revealed that the antennae of gravid females detect two compounds present in the Klebsiella sp. headspace. These compounds were identified by gas chromatography and mass spectrometry as 2-ethyl hexanol and 2,4-di tert-butylphenol. The binary blend of these compounds elicited a dose-dependent egg-laying preference by gravid mosquitoes. We propose that bacterial symbionts, which are associated with gravid mosquitoes and may be transferred to aquatic habitats during egg-laying, together with their volatiles act as oviposition cues indicating the suitability of active breeding sites to conspecific females. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto René Rachou. Vector Behavior and Pathogen Interaction Group. Belo Horizonte, MG, Brazil. | en_US |
| Affilliation | Disease Vector Group. Department of Plant Protection Biology. Swedish University of Agricultural Sciences. Alnarp, Sweden. | en_US |
| Affilliation | Department of Zoological Sciences. Addis Ababa University. Addis Ababa, Ethiopia. | en_US |
| Affilliation | Microbial Horticulture Group. Department of Biosystems and Technology. Swedish University of Agricultural Sciences. Alnarp, Sweden. | en_US |
| Affilliation | Disease Vector Group. Department of Plant Protection Biology. Swedish University of Agricultural Sciences. Alnarp, Sweden. | en_US |
| Affilliation | Disease Vector Group. Department of Plant Protection Biology. Swedish University of Agricultural Sciences. Alnarp, Sweden. | en_US |
| Affilliation | Fundação Oswaldo Cruz. Instituto René Rachou. Vector Behavior and Pathogen Interaction Group. Belo Horizonte, MG, Brazil. | en_US |
| Subject | Bacterial volatiles | en_US |
| Subject | Chemical ecology | en_US |
| Subject | Klebsiella sp | en_US |
| Subject | Olfaction | en_US |
| Subject | Oviposition | en_US |
| Embargo date | 2099-12-31 | |
