Chemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator

Abstract Insects communicate with pheromones using sensitive antennal sensilla. Although trace amounts of pheromones can be detected by many insects, context-dependent increased costs of high sensitivity might lead to plasticity in sensillum responsiveness. We have functionally characterized basicon...

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Autores principales:	Majid Ghaninia, Kevin Haight, Shelley L. Berger, Danny Reinberg, Laurence J. Zwiebel, Anandasankar Ray, Jürgen Liebig
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/d33dc11fd9da4f26adf49f793f1f5caa
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spelling	oai:doaj.org-article:d33dc11fd9da4f26adf49f793f1f5caa2021-12-02T11:52:57ZChemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator10.1038/s41598-017-03964-72045-2322https://doaj.org/article/d33dc11fd9da4f26adf49f793f1f5caa2017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-03964-7https://doaj.org/toc/2045-2322Abstract Insects communicate with pheromones using sensitive antennal sensilla. Although trace amounts of pheromones can be detected by many insects, context-dependent increased costs of high sensitivity might lead to plasticity in sensillum responsiveness. We have functionally characterized basiconic sensilla of the ant Harpegnathos saltator for responses to general odors in comparison to cuticular hydrocarbons which can act as fertility signals emitted by the principal reproductive(s) of a colony to inhibit reproduction by worker colony members. When released from inhibition workers may become reproductive gamergates. We observed plasticity in olfactory sensitivity after transition to reproductive status with significant reductions in electrophysiological responses to several long-chained cuticular hydrocarbons. Although gamergates lived on average five times longer than non-reproductive workers, the shift to reproductive status rather than age differences matched the pattern of changes in olfactory sensitivity. Decreasing sensillum responsiveness to cuticular hydrocarbons could potentially reduce mutually inhibitory or self-inhibitory effects on gamergate reproduction.Majid GhaniniaKevin HaightShelley L. BergerDanny ReinbergLaurence J. ZwiebelAnandasankar RayJürgen LiebigNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Majid Ghaninia Kevin Haight Shelley L. Berger Danny Reinberg Laurence J. Zwiebel Anandasankar Ray Jürgen Liebig Chemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator
description	Abstract Insects communicate with pheromones using sensitive antennal sensilla. Although trace amounts of pheromones can be detected by many insects, context-dependent increased costs of high sensitivity might lead to plasticity in sensillum responsiveness. We have functionally characterized basiconic sensilla of the ant Harpegnathos saltator for responses to general odors in comparison to cuticular hydrocarbons which can act as fertility signals emitted by the principal reproductive(s) of a colony to inhibit reproduction by worker colony members. When released from inhibition workers may become reproductive gamergates. We observed plasticity in olfactory sensitivity after transition to reproductive status with significant reductions in electrophysiological responses to several long-chained cuticular hydrocarbons. Although gamergates lived on average five times longer than non-reproductive workers, the shift to reproductive status rather than age differences matched the pattern of changes in olfactory sensitivity. Decreasing sensillum responsiveness to cuticular hydrocarbons could potentially reduce mutually inhibitory or self-inhibitory effects on gamergate reproduction.
format	article
author	Majid Ghaninia Kevin Haight Shelley L. Berger Danny Reinberg Laurence J. Zwiebel Anandasankar Ray Jürgen Liebig
author_facet	Majid Ghaninia Kevin Haight Shelley L. Berger Danny Reinberg Laurence J. Zwiebel Anandasankar Ray Jürgen Liebig
author_sort	Majid Ghaninia
title	Chemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator
title_short	Chemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator
title_full	Chemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator
title_fullStr	Chemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator
title_full_unstemmed	Chemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator
title_sort	chemosensory sensitivity reflects reproductive status in the ant harpegnathos saltator
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/d33dc11fd9da4f26adf49f793f1f5caa
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_version_	1718394955323408384

Chemosensory sensitivity reflects reproductive status in the ant Harpegnathos saltator

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