Diversity and Distribution of Marine Microbial Eukaryotes in the Arctic Ocean and Adjacent Seas†‡
We analyzed microbial eukaryote diversity in perennially cold arctic marine waters by using 18S rRNA gene clone libraries. Samples were collected during concurrent oceanographic missions to opposite sides of the Arctic Ocean Basin and encompassed five distinct water masses. Two deep water Arctic Oce...
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2006
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ftpubmed:oai:pubmedcentral.nih.gov:1472370 2023-05-15T14:43:53+02:00 Diversity and Distribution of Marine Microbial Eukaryotes in the Arctic Ocean and Adjacent Seas†‡ Lovejoy, C. Massana, R. Pedrós-Alió, C. 2006-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1472370 http://www.ncbi.nlm.nih.gov/pubmed/16672445 https://doi.org/10.1128/AEM.72.5.3085-3095.2006 en eng American Society for Microbiology http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1472370 http://www.ncbi.nlm.nih.gov/pubmed/16672445 http://dx.doi.org/10.1128/AEM.72.5.3085-3095.2006 Copyright © 2006, American Society for Microbiology Microbial Ecology Text 2006 ftpubmed https://doi.org/10.1128/AEM.72.5.3085-3095.2006 2013-08-31T02:00:54Z We analyzed microbial eukaryote diversity in perennially cold arctic marine waters by using 18S rRNA gene clone libraries. Samples were collected during concurrent oceanographic missions to opposite sides of the Arctic Ocean Basin and encompassed five distinct water masses. Two deep water Arctic Ocean sites and the convergence of the Greenland, Norwegian, and Barents Seas were sampled from 28 August to 2 September 2002. An additional sample was obtained from the Beaufort Sea (Canada) in early October 2002. The ribotypes were diverse, with different communities among sites and between the upper mixed layer and just below the halocline. Eukaryotes from the remote Canada Basin contained new phylotypes belonging to the radiolarian orders Acantharea, Polycystinea, and Taxopodida. A novel group within the photosynthetic stramenopiles was also identified. One sample closest to the interior of the Canada Basin yielded only four major taxa, and all but two of the sequences recovered belonged to the polar diatom Fragilariopsis and a radiolarian. Overall, 42% of the sequences were <98% similar to any sequences in GenBank. Moreover, 15% of these were <95% similar to previously recovered sequences, which is indicative of endemic or undersampled taxa in the North Polar environment. The cold, stable Arctic Ocean is a threatened environment, and climate change could result in significant loss of global microbial biodiversity. Text Arctic Arctic Ocean Beaufort Sea canada basin Climate change Greenland PubMed Central (PMC) Arctic Arctic Ocean Canada Greenland Applied and Environmental Microbiology 72 5 3085 3095 |
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language |
English |
topic |
Microbial Ecology |
spellingShingle |
Microbial Ecology Lovejoy, C. Massana, R. Pedrós-Alió, C. Diversity and Distribution of Marine Microbial Eukaryotes in the Arctic Ocean and Adjacent Seas†‡ |
topic_facet |
Microbial Ecology |
description |
We analyzed microbial eukaryote diversity in perennially cold arctic marine waters by using 18S rRNA gene clone libraries. Samples were collected during concurrent oceanographic missions to opposite sides of the Arctic Ocean Basin and encompassed five distinct water masses. Two deep water Arctic Ocean sites and the convergence of the Greenland, Norwegian, and Barents Seas were sampled from 28 August to 2 September 2002. An additional sample was obtained from the Beaufort Sea (Canada) in early October 2002. The ribotypes were diverse, with different communities among sites and between the upper mixed layer and just below the halocline. Eukaryotes from the remote Canada Basin contained new phylotypes belonging to the radiolarian orders Acantharea, Polycystinea, and Taxopodida. A novel group within the photosynthetic stramenopiles was also identified. One sample closest to the interior of the Canada Basin yielded only four major taxa, and all but two of the sequences recovered belonged to the polar diatom Fragilariopsis and a radiolarian. Overall, 42% of the sequences were <98% similar to any sequences in GenBank. Moreover, 15% of these were <95% similar to previously recovered sequences, which is indicative of endemic or undersampled taxa in the North Polar environment. The cold, stable Arctic Ocean is a threatened environment, and climate change could result in significant loss of global microbial biodiversity. |
format |
Text |
author |
Lovejoy, C. Massana, R. Pedrós-Alió, C. |
author_facet |
Lovejoy, C. Massana, R. Pedrós-Alió, C. |
author_sort |
Lovejoy, C. |
title |
Diversity and Distribution of Marine Microbial Eukaryotes in the Arctic Ocean and Adjacent Seas†‡ |
title_short |
Diversity and Distribution of Marine Microbial Eukaryotes in the Arctic Ocean and Adjacent Seas†‡ |
title_full |
Diversity and Distribution of Marine Microbial Eukaryotes in the Arctic Ocean and Adjacent Seas†‡ |
title_fullStr |
Diversity and Distribution of Marine Microbial Eukaryotes in the Arctic Ocean and Adjacent Seas†‡ |
title_full_unstemmed |
Diversity and Distribution of Marine Microbial Eukaryotes in the Arctic Ocean and Adjacent Seas†‡ |
title_sort |
diversity and distribution of marine microbial eukaryotes in the arctic ocean and adjacent seas†‡ |
publisher |
American Society for Microbiology |
publishDate |
2006 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1472370 http://www.ncbi.nlm.nih.gov/pubmed/16672445 https://doi.org/10.1128/AEM.72.5.3085-3095.2006 |
geographic |
Arctic Arctic Ocean Canada Greenland |
geographic_facet |
Arctic Arctic Ocean Canada Greenland |
genre |
Arctic Arctic Ocean Beaufort Sea canada basin Climate change Greenland |
genre_facet |
Arctic Arctic Ocean Beaufort Sea canada basin Climate change Greenland |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1472370 http://www.ncbi.nlm.nih.gov/pubmed/16672445 http://dx.doi.org/10.1128/AEM.72.5.3085-3095.2006 |
op_rights |
Copyright © 2006, American Society for Microbiology |
op_doi |
https://doi.org/10.1128/AEM.72.5.3085-3095.2006 |
container_title |
Applied and Environmental Microbiology |
container_volume |
72 |
container_issue |
5 |
container_start_page |
3085 |
op_container_end_page |
3095 |
_version_ |
1766315473046077440 |