First Evidence of the Toxin Domoic Acid in Antarctic Diatom Species
The Southern Ocean is one of the most productive ecosystems in the world. It is an area heavily dependent on marine primary production and serving as a feeding ground for numerous seabirds and marine mammals. Therefore, the phytoplankton composition and presence of toxic species are of crucial impor...
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ftpubmed:oai:pubmedcentral.nih.gov:7912347 2023-05-15T13:48:31+02:00 First Evidence of the Toxin Domoic Acid in Antarctic Diatom Species Olesen, Anna J. Leithoff, Anneliese Altenburger, Andreas Krock, Bernd Beszteri, Bánk Eggers, Sarah Lena Lundholm, Nina 2021-01-26 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7912347/ http://www.ncbi.nlm.nih.gov/pubmed/33530611 https://doi.org/10.3390/toxins13020093 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7912347/ http://www.ncbi.nlm.nih.gov/pubmed/33530611 http://dx.doi.org/10.3390/toxins13020093 © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). CC-BY Toxins (Basel) Article Text 2021 ftpubmed https://doi.org/10.3390/toxins13020093 2021-03-07T02:00:58Z The Southern Ocean is one of the most productive ecosystems in the world. It is an area heavily dependent on marine primary production and serving as a feeding ground for numerous seabirds and marine mammals. Therefore, the phytoplankton composition and presence of toxic species are of crucial importance. Fifteen monoclonal strains of Pseudo-nitzschia subcurvata, a diatom species endemic to the Southern Ocean, were established, which were characterized by morphological and molecular data and then analysed for toxin content. The neurotoxins domoic acid and iso-domoic acid C were present in three of the strains, which is a finding that represents the first evidence of these toxins in strains from Antarctic waters. Toxic phytoplankton in Antarctic waters are still largely unexplored, and their effects on the ecosystem are not well understood. Considering P. subcurvata’s prevalence throughout the Southern Ocean, these results highlight the need for further investigations of the harmful properties on the Antarctic phytoplankton community as well as the presence of the toxins in the Antarctic food web, especially in the light of a changing climate. Text Antarc* Antarctic Southern Ocean PubMed Central (PMC) Antarctic Southern Ocean The Antarctic Toxins 13 2 93 |
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Article Olesen, Anna J. Leithoff, Anneliese Altenburger, Andreas Krock, Bernd Beszteri, Bánk Eggers, Sarah Lena Lundholm, Nina First Evidence of the Toxin Domoic Acid in Antarctic Diatom Species |
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The Southern Ocean is one of the most productive ecosystems in the world. It is an area heavily dependent on marine primary production and serving as a feeding ground for numerous seabirds and marine mammals. Therefore, the phytoplankton composition and presence of toxic species are of crucial importance. Fifteen monoclonal strains of Pseudo-nitzschia subcurvata, a diatom species endemic to the Southern Ocean, were established, which were characterized by morphological and molecular data and then analysed for toxin content. The neurotoxins domoic acid and iso-domoic acid C were present in three of the strains, which is a finding that represents the first evidence of these toxins in strains from Antarctic waters. Toxic phytoplankton in Antarctic waters are still largely unexplored, and their effects on the ecosystem are not well understood. Considering P. subcurvata’s prevalence throughout the Southern Ocean, these results highlight the need for further investigations of the harmful properties on the Antarctic phytoplankton community as well as the presence of the toxins in the Antarctic food web, especially in the light of a changing climate. |
format |
Text |
author |
Olesen, Anna J. Leithoff, Anneliese Altenburger, Andreas Krock, Bernd Beszteri, Bánk Eggers, Sarah Lena Lundholm, Nina |
author_facet |
Olesen, Anna J. Leithoff, Anneliese Altenburger, Andreas Krock, Bernd Beszteri, Bánk Eggers, Sarah Lena Lundholm, Nina |
author_sort |
Olesen, Anna J. |
title |
First Evidence of the Toxin Domoic Acid in Antarctic Diatom Species |
title_short |
First Evidence of the Toxin Domoic Acid in Antarctic Diatom Species |
title_full |
First Evidence of the Toxin Domoic Acid in Antarctic Diatom Species |
title_fullStr |
First Evidence of the Toxin Domoic Acid in Antarctic Diatom Species |
title_full_unstemmed |
First Evidence of the Toxin Domoic Acid in Antarctic Diatom Species |
title_sort |
first evidence of the toxin domoic acid in antarctic diatom species |
publisher |
MDPI |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7912347/ http://www.ncbi.nlm.nih.gov/pubmed/33530611 https://doi.org/10.3390/toxins13020093 |
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Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
Toxins (Basel) |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7912347/ http://www.ncbi.nlm.nih.gov/pubmed/33530611 http://dx.doi.org/10.3390/toxins13020093 |
op_rights |
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
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https://doi.org/10.3390/toxins13020093 |
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Toxins |
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93 |
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1766249395747028992 |