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Spatial odor discrimination in the hawkmoth, Manduca sexta (L.)

Flying insects track turbulent odor plumes to find mates, food and egg-laying sites. To maintain contact with the plume, insects are thought to adapt their flight control according to the distribution of odor in the plume using the timing of odor onsets and intervals between odor encounters. Althoug...

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Detalles Bibliográficos
Autores principales: Parthasarathy, Kalyanasundaram, Willis, M. A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Company of Biologists Ltd 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8015231/
https://www.ncbi.nlm.nih.gov/pubmed/33737293
http://dx.doi.org/10.1242/bio.058649
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author Parthasarathy, Kalyanasundaram
Willis, M. A.
author_facet Parthasarathy, Kalyanasundaram
Willis, M. A.
author_sort Parthasarathy, Kalyanasundaram
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description Flying insects track turbulent odor plumes to find mates, food and egg-laying sites. To maintain contact with the plume, insects are thought to adapt their flight control according to the distribution of odor in the plume using the timing of odor onsets and intervals between odor encounters. Although timing cues are important, few studies have addressed whether insects are capable of deriving spatial information about odor distribution from bilateral comparisons between their antennae in flight. The proboscis extension reflex (PER) associative learning protocol, originally developed to study odor learning in honeybees, was used as a tool to ask if hawkmoths, Manduca sexta, can discriminate between odor stimuli arriving on either antenna. We show moths discriminated the odor arrival side with an accuracy of >70%. Information about spatial distribution of odor stimuli may be available to moths searching for odor sources, opening the possibility that they use both spatial and temporal odor information. This article has an associated First Person interview with the first author of the paper.
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spelling pubmed-80152312021-04-01 Spatial odor discrimination in the hawkmoth, Manduca sexta (L.) Parthasarathy, Kalyanasundaram Willis, M. A. Biol Open Research Article Flying insects track turbulent odor plumes to find mates, food and egg-laying sites. To maintain contact with the plume, insects are thought to adapt their flight control according to the distribution of odor in the plume using the timing of odor onsets and intervals between odor encounters. Although timing cues are important, few studies have addressed whether insects are capable of deriving spatial information about odor distribution from bilateral comparisons between their antennae in flight. The proboscis extension reflex (PER) associative learning protocol, originally developed to study odor learning in honeybees, was used as a tool to ask if hawkmoths, Manduca sexta, can discriminate between odor stimuli arriving on either antenna. We show moths discriminated the odor arrival side with an accuracy of >70%. Information about spatial distribution of odor stimuli may be available to moths searching for odor sources, opening the possibility that they use both spatial and temporal odor information. This article has an associated First Person interview with the first author of the paper. The Company of Biologists Ltd 2021-03-26 /pmc/articles/PMC8015231/ /pubmed/33737293 http://dx.doi.org/10.1242/bio.058649 Text en © 2021. Published by The Company of Biologists Ltd http://creativecommons.org/licenses/by/4.0This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution and reproduction in any medium provided that the original work is properly attributed.
spellingShingle Research Article
Parthasarathy, Kalyanasundaram
Willis, M. A.
Spatial odor discrimination in the hawkmoth, Manduca sexta (L.)
title Spatial odor discrimination in the hawkmoth, Manduca sexta (L.)
title_full Spatial odor discrimination in the hawkmoth, Manduca sexta (L.)
title_fullStr Spatial odor discrimination in the hawkmoth, Manduca sexta (L.)
title_full_unstemmed Spatial odor discrimination in the hawkmoth, Manduca sexta (L.)
title_short Spatial odor discrimination in the hawkmoth, Manduca sexta (L.)
title_sort spatial odor discrimination in the hawkmoth, manduca sexta (l.)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8015231/
https://www.ncbi.nlm.nih.gov/pubmed/33737293
http://dx.doi.org/10.1242/bio.058649
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