Acute olfactory sensitivity to prostaglandins but not to gonadal steroids in two sympatric species of Catostomus (Pisces: Cypriniformes)
The discovery that released hormones (steroids and prostaglandins) and their metabolites function as potent pheromones in some fishes provides an opportunity to determine whether these chemically identified pheromones are species specific. As a first step in studying this complex issue, we used an e...
Published in: | Canadian Journal of Zoology |
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Language: | English |
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Canadian Science Publishing
1992
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Online Access: | http://dx.doi.org/10.1139/z92-258 http://www.nrcresearchpress.com/doi/pdf/10.1139/z92-258 |
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crcansciencepubl:10.1139/z92-258 2024-09-15T18:01:48+00:00 Acute olfactory sensitivity to prostaglandins but not to gonadal steroids in two sympatric species of Catostomus (Pisces: Cypriniformes) Cardwell, J. R. Dulka, J. G. Stacey, N. E. 1992 http://dx.doi.org/10.1139/z92-258 http://www.nrcresearchpress.com/doi/pdf/10.1139/z92-258 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 70, issue 10, page 1897-1903 ISSN 0008-4301 1480-3283 journal-article 1992 crcansciencepubl https://doi.org/10.1139/z92-258 2024-07-25T04:10:08Z The discovery that released hormones (steroids and prostaglandins) and their metabolites function as potent pheromones in some fishes provides an opportunity to determine whether these chemically identified pheromones are species specific. As a first step in studying this complex issue, we used an extracellular electrophysiological recording technique (electro-olfactogram) to investigate the olfactory sensitivity of two sympatrically spawning catostomid species (white sucker, Catostomus commersoni, and longnose sucker, Catostomus catostomus; Cypriniformes: Catostomidae) to steroids and prostaglandins that might function as sex pheromones. Both species were acutely sensitive to F-series prostaglandins, particularly prostaglandin-F 2α and its metabolite 15-ketoprostaglandin-F 2α , but exhibited no olfactory responses to free or conjugated gonadal steroids. The data from tests of olfactory sensitivity to a range of gonadal steroids, though negative, provide preliminary evidence that maturational steroid hormones do not function as pheromones in catostomids as they do in other cypriniform fishes. We were unable to detect species differences in receptor-level olfactory sensitivity to hormones or hormone metabolites, although we cannot discount possible differences at other levels of the olfactory system. Article in Journal/Newspaper Catostomus catostomus Longnose sucker Canadian Science Publishing Canadian Journal of Zoology 70 10 1897 1903 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
The discovery that released hormones (steroids and prostaglandins) and their metabolites function as potent pheromones in some fishes provides an opportunity to determine whether these chemically identified pheromones are species specific. As a first step in studying this complex issue, we used an extracellular electrophysiological recording technique (electro-olfactogram) to investigate the olfactory sensitivity of two sympatrically spawning catostomid species (white sucker, Catostomus commersoni, and longnose sucker, Catostomus catostomus; Cypriniformes: Catostomidae) to steroids and prostaglandins that might function as sex pheromones. Both species were acutely sensitive to F-series prostaglandins, particularly prostaglandin-F 2α and its metabolite 15-ketoprostaglandin-F 2α , but exhibited no olfactory responses to free or conjugated gonadal steroids. The data from tests of olfactory sensitivity to a range of gonadal steroids, though negative, provide preliminary evidence that maturational steroid hormones do not function as pheromones in catostomids as they do in other cypriniform fishes. We were unable to detect species differences in receptor-level olfactory sensitivity to hormones or hormone metabolites, although we cannot discount possible differences at other levels of the olfactory system. |
format |
Article in Journal/Newspaper |
author |
Cardwell, J. R. Dulka, J. G. Stacey, N. E. |
spellingShingle |
Cardwell, J. R. Dulka, J. G. Stacey, N. E. Acute olfactory sensitivity to prostaglandins but not to gonadal steroids in two sympatric species of Catostomus (Pisces: Cypriniformes) |
author_facet |
Cardwell, J. R. Dulka, J. G. Stacey, N. E. |
author_sort |
Cardwell, J. R. |
title |
Acute olfactory sensitivity to prostaglandins but not to gonadal steroids in two sympatric species of Catostomus (Pisces: Cypriniformes) |
title_short |
Acute olfactory sensitivity to prostaglandins but not to gonadal steroids in two sympatric species of Catostomus (Pisces: Cypriniformes) |
title_full |
Acute olfactory sensitivity to prostaglandins but not to gonadal steroids in two sympatric species of Catostomus (Pisces: Cypriniformes) |
title_fullStr |
Acute olfactory sensitivity to prostaglandins but not to gonadal steroids in two sympatric species of Catostomus (Pisces: Cypriniformes) |
title_full_unstemmed |
Acute olfactory sensitivity to prostaglandins but not to gonadal steroids in two sympatric species of Catostomus (Pisces: Cypriniformes) |
title_sort |
acute olfactory sensitivity to prostaglandins but not to gonadal steroids in two sympatric species of catostomus (pisces: cypriniformes) |
publisher |
Canadian Science Publishing |
publishDate |
1992 |
url |
http://dx.doi.org/10.1139/z92-258 http://www.nrcresearchpress.com/doi/pdf/10.1139/z92-258 |
genre |
Catostomus catostomus Longnose sucker |
genre_facet |
Catostomus catostomus Longnose sucker |
op_source |
Canadian Journal of Zoology volume 70, issue 10, page 1897-1903 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z92-258 |
container_title |
Canadian Journal of Zoology |
container_volume |
70 |
container_issue |
10 |
container_start_page |
1897 |
op_container_end_page |
1903 |
_version_ |
1810438870170337280 |