Universidad Peruana Cayetano Heredia

The impact of mating and sugar feeding on blood-feeding physiology and behavior in the arbovirus vector mosquito aedes aegypti

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dc.contributor.author League, G.P.
dc.contributor.author Degner, E.C.
dc.contributor.author Pitcher, S.A.
dc.contributor.author Hafezi, Y.
dc.contributor.author Tennant, E.
dc.contributor.author Cruz, P.C.
dc.contributor.author Krishnan, R.S.
dc.contributor.author Castillo, S.S.G.
dc.contributor.author Alfonso-Parra, C.
dc.contributor.author Avila, F.W.
dc.contributor.author Wolfner, M.F.
dc.contributor.author Harrington, L.C.
dc.date.accessioned 2021-12-12T20:24:57Z
dc.date.available 2021-12-12T20:24:57Z
dc.date.issued 2021
dc.identifier.uri https://hdl.handle.net/20.500.12866/10253
dc.description.abstract Background Aedes aegypti mosquitoes are globally distributed vectors of viruses that impact the health of hundreds of millions of people annually. Mating and blood feeding represent fundamental aspects of mosquito life history that carry important implications for vectorial capacity and for control strategies. Females transmit pathogens to vertebrate hosts and obtain essential nutrients for eggs during blood feeding. Further, because host-seeking Ae. aegypti females mate with males swarming near hosts, biological crosstalk between these behaviors could be important. Although mating influences nutritional intake in other insects, prior studies examining mating effects on mosquito blood feeding have yielded conflicting results. Methodology/Principal findings To resolve these discrepancies, we examined blood-feeding physiology and behavior in virgin and mated females and in virgins injected with male accessory gland extracts (MAG), which induce post-mating changes in female behavior. We controlled adult nutritional status prior to blood feeding by using water-and sugar-fed controls. Our data show that neither mating nor injection with MAG affect Ae. aegypti blood intake, digestion, or feeding avidity for an initial blood meal. However, sugar feeding, a common supplement in laboratory settings but relatively rare in nature, significantly affected all aspects of feeding and may have contributed to conflicting results among previous studies. Further, mating, MAG injection, and sugar intake induced declines in subsequent feedings after an initial blood meal, correlating with egg production and laying. Taking our evaluation to the field, virgin and mated mosquitoes collected in Colombia were equally likely to contain blood at the time of collection. Conclusions/Significance Mating, MAG, and sugar feeding impact a mosquito’s estimated ability to transmit pathogens through both direct and indirect effects on multiple aspects of mosquito biology. Our results highlight the need to consider natural mosquito ecology, including diet, when assessing their physiology and behavior in the laboratory en_US
dc.language.iso eng
dc.publisher Public Library of Science
dc.relation.ispartofseries PLoS Neglected Tropical Diseases
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Aedes aegypti en_US
dc.subject Arbovirus en_US
dc.subject Article en_US
dc.subject binding affinity en_US
dc.subject blood en_US
dc.subject blood feeding en_US
dc.subject Blood-feeding avidity en_US
dc.subject controlled study en_US
dc.subject digestion en_US
dc.subject endemic disease en_US
dc.subject exocrine gland en_US
dc.subject female en_US
dc.subject hemoglobin determination en_US
dc.subject infectious agent en_US
dc.subject male en_US
dc.subject male accessory gland en_US
dc.subject mating en_US
dc.subject mosquito en_US
dc.subject nonhuman en_US
dc.subject nutritional status en_US
dc.subject sugar intake en_US
dc.subject water en_US
dc.title The impact of mating and sugar feeding on blood-feeding physiology and behavior in the arbovirus vector mosquito aedes aegypti en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1371/journal.pntd.0009815
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.03.06
dc.relation.issn 1935-2735


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