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L-lactic and 2-ketoglutaric acids, odors from human skin, govern attraction and landing in host-seeking female Aedes aegypti mosquitoes

Sumner, B. D.; Amos, B. A.; Bello, J. E.; Carde, R. T.

2022-10-22 animal behavior and cognition
10.1101/2022.10.18.512748 bioRxiv
Show abstract

Aedes aegypti, presented with a source of L-lactic and 2-ketoglutaric acid in a wind-tunnel bioassay, takeoff, fly upwind, and land on the blend at rates comparable those exhibited by mosquitoes presented with a skin odor stimulus. Addition of carbon dioxide decreased takeoff latency but was not required to elicit upwind flight nor landings. Ketoglutaric acid, a recently identified component of human skin odor, combined with lactic acid elicits the full repertoire of mosquito host-seeking behaviors.

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