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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ftdoajarticles:oai:doaj.org/article:c8eb17f9cd5f44db8dcac27c88f9b439 2024-09-15T18:23:33+00:00 Influence of short and long term processes on SAR11 communities in open ocean and coastal systems Luis M. Bolaños Karen Tait Paul J. Somerfield Rachel J. Parsons Stephen J. Giovannoni Timothy Smyth Ben Temperton 2022-11-01T00:00:00Z https://doi.org/10.1038/s43705-022-00198-1 https://doaj.org/article/c8eb17f9cd5f44db8dcac27c88f9b439 EN eng Oxford University Press https://doi.org/10.1038/s43705-022-00198-1 https://doaj.org/toc/2730-6151 doi:10.1038/s43705-022-00198-1 2730-6151 https://doaj.org/article/c8eb17f9cd5f44db8dcac27c88f9b439 ISME Communications, Vol 2, Iss 1, Pp 1-11 (2022) Microbial ecology QR100-130 article 2022 ftdoajarticles https://doi.org/10.1038/s43705-022-00198-1 2024-08-05T17:49:41Z 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 Directory of Open Access Journals: DOAJ Articles ISME Communications 2 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Microbial ecology QR100-130 |
spellingShingle |
Microbial ecology QR100-130 Luis M. Bolaños Karen Tait Paul J. Somerfield Rachel J. Parsons Stephen J. Giovannoni Timothy Smyth Ben Temperton Influence of short and long term processes on SAR11 communities in open ocean and coastal systems |
topic_facet |
Microbial ecology QR100-130 |
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. |
format |
Article in Journal/Newspaper |
author |
Luis M. Bolaños Karen Tait Paul J. Somerfield Rachel J. Parsons Stephen J. Giovannoni Timothy Smyth Ben Temperton |
author_facet |
Luis M. Bolaños Karen Tait Paul J. Somerfield Rachel J. Parsons Stephen J. Giovannoni Timothy Smyth Ben Temperton |
author_sort |
Luis M. Bolaños |
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 |
publishDate |
2022 |
url |
https://doi.org/10.1038/s43705-022-00198-1 https://doaj.org/article/c8eb17f9cd5f44db8dcac27c88f9b439 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISME Communications, Vol 2, Iss 1, Pp 1-11 (2022) |
op_relation |
https://doi.org/10.1038/s43705-022-00198-1 https://doaj.org/toc/2730-6151 doi:10.1038/s43705-022-00198-1 2730-6151 https://doaj.org/article/c8eb17f9cd5f44db8dcac27c88f9b439 |
op_doi |
https://doi.org/10.1038/s43705-022-00198-1 |
container_title |
ISME Communications |
container_volume |
2 |
container_issue |
1 |
_version_ |
1810463772406448128 |