Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae)
Freshening of the oceans is a predicted outcome of climate change. Marine phytoplankton organisms are in general affected by salinity changes and, given their key role in oceanic food webs and geochemical cycles, it is important to investigate the response of phytoplankton species to salinity change...
Published in: | Phycologia |
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Language: | English |
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2021
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Online Access: | https://curis.ku.dk/portal/da/publications/salinity-a-climatechange-factor-affecting-growth-domoic-acid-and-isodomoic-acid-c-content-in-the-diatom-pseudonitzschia-seriata-bacillariophyceae(dde2782e-3700-4105-82e9-dcf13ce5f376).html https://doi.org/10.1080/00318884.2021.1973789 |
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ftcopenhagenunip:oai:pure.atira.dk:publications/dde2782e-3700-4105-82e9-dcf13ce5f376 2024-05-19T07:35:48+00:00 Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae) Weber, Caroline Olesen, Anna Karoline Junker Krock, Bernd Lundholm, Nina 2021 https://curis.ku.dk/portal/da/publications/salinity-a-climatechange-factor-affecting-growth-domoic-acid-and-isodomoic-acid-c-content-in-the-diatom-pseudonitzschia-seriata-bacillariophyceae(dde2782e-3700-4105-82e9-dcf13ce5f376).html https://doi.org/10.1080/00318884.2021.1973789 eng eng info:eu-repo/semantics/closedAccess Weber , C , Olesen , A K J , Krock , B & Lundholm , N 2021 , ' Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae) ' , Phycologia , vol. 60 , no. 6 , pp. 619-630 . https://doi.org/10.1080/00318884.2021.1973789 Arctic Intraspecific variation Ocean freshening Toxicity article 2021 ftcopenhagenunip https://doi.org/10.1080/00318884.2021.1973789 2024-05-02T00:33:14Z Freshening of the oceans is a predicted outcome of climate change. Marine phytoplankton organisms are in general affected by salinity changes and, given their key role in oceanic food webs and geochemical cycles, it is important to investigate the response of phytoplankton species to salinity changes. Diatom species of the genus Pseudo-nitzschia can form massive and, at times, toxic blooms, because several Pseudo-nitzschia species produce the neurotoxin domoic acid. Domoic acid can cause amnesic shellfish poisoning in humans and harm animals in the marine food web. The species Pseudo-nitzschia seriata can produce domoic acid in cold-water areas, like the Arctic. Hence, it is relevant to investigate the response of P. seriata to different salinity levels. Three strains of P. seriata were exposed to four different salinity levels (15, 20, 30 and 40). None of the strains grew at salinity 15, and maximum growth rates were found at salinity 30. All three strains contained toxins at salinities 20–40, with the highest cellular content occurring at salinity 20. The peak in toxin content was related to a significantly lower growth rate. However, the higher toxin content overrode the lower growth rate, ultimately resulting in a higher toxin potential at salinity 20. In addition to domoic acid, all strains contained isodomoic acid C in surprisingly high amounts, similar to the domoic acid content. Article in Journal/Newspaper Arctic Climate change Phytoplankton University of Copenhagen: Research Phycologia 60 6 619 630 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
Arctic Intraspecific variation Ocean freshening Toxicity |
spellingShingle |
Arctic Intraspecific variation Ocean freshening Toxicity Weber, Caroline Olesen, Anna Karoline Junker Krock, Bernd Lundholm, Nina Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae) |
topic_facet |
Arctic Intraspecific variation Ocean freshening Toxicity |
description |
Freshening of the oceans is a predicted outcome of climate change. Marine phytoplankton organisms are in general affected by salinity changes and, given their key role in oceanic food webs and geochemical cycles, it is important to investigate the response of phytoplankton species to salinity changes. Diatom species of the genus Pseudo-nitzschia can form massive and, at times, toxic blooms, because several Pseudo-nitzschia species produce the neurotoxin domoic acid. Domoic acid can cause amnesic shellfish poisoning in humans and harm animals in the marine food web. The species Pseudo-nitzschia seriata can produce domoic acid in cold-water areas, like the Arctic. Hence, it is relevant to investigate the response of P. seriata to different salinity levels. Three strains of P. seriata were exposed to four different salinity levels (15, 20, 30 and 40). None of the strains grew at salinity 15, and maximum growth rates were found at salinity 30. All three strains contained toxins at salinities 20–40, with the highest cellular content occurring at salinity 20. The peak in toxin content was related to a significantly lower growth rate. However, the higher toxin content overrode the lower growth rate, ultimately resulting in a higher toxin potential at salinity 20. In addition to domoic acid, all strains contained isodomoic acid C in surprisingly high amounts, similar to the domoic acid content. |
format |
Article in Journal/Newspaper |
author |
Weber, Caroline Olesen, Anna Karoline Junker Krock, Bernd Lundholm, Nina |
author_facet |
Weber, Caroline Olesen, Anna Karoline Junker Krock, Bernd Lundholm, Nina |
author_sort |
Weber, Caroline |
title |
Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae) |
title_short |
Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae) |
title_full |
Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae) |
title_fullStr |
Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae) |
title_full_unstemmed |
Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae) |
title_sort |
salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid c content in the diatom pseudo-nitzschia seriata (bacillariophyceae) |
publishDate |
2021 |
url |
https://curis.ku.dk/portal/da/publications/salinity-a-climatechange-factor-affecting-growth-domoic-acid-and-isodomoic-acid-c-content-in-the-diatom-pseudonitzschia-seriata-bacillariophyceae(dde2782e-3700-4105-82e9-dcf13ce5f376).html https://doi.org/10.1080/00318884.2021.1973789 |
genre |
Arctic Climate change Phytoplankton |
genre_facet |
Arctic Climate change Phytoplankton |
op_source |
Weber , C , Olesen , A K J , Krock , B & Lundholm , N 2021 , ' Salinity, a climate-change factor affecting growth, domoic acid and isodomoic acid C content in the diatom Pseudo-nitzschia seriata (Bacillariophyceae) ' , Phycologia , vol. 60 , no. 6 , pp. 619-630 . https://doi.org/10.1080/00318884.2021.1973789 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1080/00318884.2021.1973789 |
container_title |
Phycologia |
container_volume |
60 |
container_issue |
6 |
container_start_page |
619 |
op_container_end_page |
630 |
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1799474831532490752 |