Influence of short and long term processes on SAR11 communities in open ocean and coastal systems
Abstract SAR11 bacteria dominate the surface ocean and are major players in converting fixed carbon back to atmospheric carbon dioxide. The SAR11 clade is comprised of niche-specialized ecotypes that display distinctive spatiotemporal transitions. We analyzed SAR11 ecotype seasonality in two long-te...
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Oxford University Press (OUP)
2022
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Online Access: | http://dx.doi.org/10.1038/s43705-022-00198-1 https://www.nature.com/articles/s43705-022-00198-1.pdf https://www.nature.com/articles/s43705-022-00198-1 https://academic.oup.com/ismecommun/article-pdf/2/1/116/55502138/43705_2022_article_198.pdf |
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croxfordunivpr:10.1038/s43705-022-00198-1 2024-09-15T18:23:34+00:00 Influence of short and long term processes on SAR11 communities in open ocean and coastal systems Bolaños, Luis M Tait, Karen Somerfield, Paul J Parsons, Rachel J Giovannoni, Stephen J Smyth, Timothy Temperton, Ben RCUK | Natural Environment Research Council Simons Foundation RCUK | Natural Environment Research Council Simons Foundation 2022 http://dx.doi.org/10.1038/s43705-022-00198-1 https://www.nature.com/articles/s43705-022-00198-1.pdf https://www.nature.com/articles/s43705-022-00198-1 https://academic.oup.com/ismecommun/article-pdf/2/1/116/55502138/43705_2022_article_198.pdf en eng Oxford University Press (OUP) https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 ISME Communications volume 2, issue 1 ISSN 2730-6151 journal-article 2022 croxfordunivpr https://doi.org/10.1038/s43705-022-00198-1 2024-07-29T04:20:44Z Abstract SAR11 bacteria dominate the surface ocean and are major players in converting fixed carbon back to atmospheric carbon dioxide. The SAR11 clade is comprised of niche-specialized ecotypes that display distinctive spatiotemporal transitions. We analyzed SAR11 ecotype seasonality in two long-term 16S rRNA amplicon time series representing different North Atlantic regimes: the Sargasso Sea (subtropical ocean-gyre; BATS) and the temperate coastal Western English Channel (WEC). Using phylogenetically resolved amplicon sequence variants (ASVs), we evaluated seasonal environmental constraints on SAR11 ecotype periodicity. Despite large differences in temperature and nutrient availability between the two sites, at both SAR11 succession was defined by summer and winter clusters of ASVs. The summer cluster was dominated by ecotype Ia.3 in both sites. Winter clusters were dominated by ecotypes Ib and IIa.A at BATS and Ia.1 and IIa.B at WEC. A 2-year weekly analysis within the WEC time series showed that the response of SAR11 communities to short-term environmental fluctuations was variable. In 2016, community shifts were abrupt and synchronized to environmental shifts. However, in 2015, changes were gradual and decoupled from environmental fluctuations, likely due to increased mixing from strong winds. We demonstrate that interannual weather variability disturb the pace of SAR11 seasonal progression. Article in Journal/Newspaper North Atlantic Oxford University Press ISME Communications 2 1 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
Abstract SAR11 bacteria dominate the surface ocean and are major players in converting fixed carbon back to atmospheric carbon dioxide. The SAR11 clade is comprised of niche-specialized ecotypes that display distinctive spatiotemporal transitions. We analyzed SAR11 ecotype seasonality in two long-term 16S rRNA amplicon time series representing different North Atlantic regimes: the Sargasso Sea (subtropical ocean-gyre; BATS) and the temperate coastal Western English Channel (WEC). Using phylogenetically resolved amplicon sequence variants (ASVs), we evaluated seasonal environmental constraints on SAR11 ecotype periodicity. Despite large differences in temperature and nutrient availability between the two sites, at both SAR11 succession was defined by summer and winter clusters of ASVs. The summer cluster was dominated by ecotype Ia.3 in both sites. Winter clusters were dominated by ecotypes Ib and IIa.A at BATS and Ia.1 and IIa.B at WEC. A 2-year weekly analysis within the WEC time series showed that the response of SAR11 communities to short-term environmental fluctuations was variable. In 2016, community shifts were abrupt and synchronized to environmental shifts. However, in 2015, changes were gradual and decoupled from environmental fluctuations, likely due to increased mixing from strong winds. We demonstrate that interannual weather variability disturb the pace of SAR11 seasonal progression. |
author2 |
RCUK | Natural Environment Research Council Simons Foundation RCUK | Natural Environment Research Council Simons Foundation |
format |
Article in Journal/Newspaper |
author |
Bolaños, Luis M Tait, Karen Somerfield, Paul J Parsons, Rachel J Giovannoni, Stephen J Smyth, Timothy Temperton, Ben |
spellingShingle |
Bolaños, Luis M Tait, Karen Somerfield, Paul J Parsons, Rachel J Giovannoni, Stephen J Smyth, Timothy Temperton, Ben Influence of short and long term processes on SAR11 communities in open ocean and coastal systems |
author_facet |
Bolaños, Luis M Tait, Karen Somerfield, Paul J Parsons, Rachel J Giovannoni, Stephen J Smyth, Timothy Temperton, Ben |
author_sort |
Bolaños, Luis M |
title |
Influence of short and long term processes on SAR11 communities in open ocean and coastal systems |
title_short |
Influence of short and long term processes on SAR11 communities in open ocean and coastal systems |
title_full |
Influence of short and long term processes on SAR11 communities in open ocean and coastal systems |
title_fullStr |
Influence of short and long term processes on SAR11 communities in open ocean and coastal systems |
title_full_unstemmed |
Influence of short and long term processes on SAR11 communities in open ocean and coastal systems |
title_sort |
influence of short and long term processes on sar11 communities in open ocean and coastal systems |
publisher |
Oxford University Press (OUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1038/s43705-022-00198-1 https://www.nature.com/articles/s43705-022-00198-1.pdf https://www.nature.com/articles/s43705-022-00198-1 https://academic.oup.com/ismecommun/article-pdf/2/1/116/55502138/43705_2022_article_198.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISME Communications volume 2, issue 1 ISSN 2730-6151 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.1038/s43705-022-00198-1 |
container_title |
ISME Communications |
container_volume |
2 |
container_issue |
1 |
_version_ |
1810463794360483840 |