Specialized Bacteroidetes dominate the Arctic Ocean during marine spring blooms
A metagenomic time series from Arctic seawater was obtained from Dease Strait, to analyse the changes in bacterioplankton caused by the summer phytoplankton bloom. Bacterial clades specialized in the metabolism of polysaccharides, such as Bacteroidetes, became dominant along the bloom. These special...
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Frontiers Media S.A.
2024-11-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1481702/full |
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| author | Álvaro Redondo-Río Christopher J. Mundy Javier Tamames Carlos Pedrós-Alió |
| author_facet | Álvaro Redondo-Río Christopher J. Mundy Javier Tamames Carlos Pedrós-Alió |
| author_sort | Álvaro Redondo-Río |
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| description | A metagenomic time series from Arctic seawater was obtained from Dease Strait, to analyse the changes in bacterioplankton caused by the summer phytoplankton bloom. Bacterial clades specialized in the metabolism of polysaccharides, such as Bacteroidetes, became dominant along the bloom. These specialized taxa quickly displaced the microbial clades that dominate nutrient-poor waters during early spring, such as Archaea, Alpha-and Gammaproteobacteria. At the functional level, phyla Bacteroidetes, Planctomycetes, and Verrucomicrobia showed higher contents of polysaccharide-degradation functions. The Bacteroidetes community shifted toward species with higher polysaccharide-degrading capabilities, targeting algal polysaccharides in summer. Regarding transporters, Bacteroidetes dominated SusC-TonB transporters and had an exclusive family of glycoside-binding proteins (SusD). These proteins were used to identify polysaccharide-utilization loci that clustered transporters and polysaccharide-active enzymes, showing a higher level of specialization toward polysaccharide use. Altogether, these genomic features point to the genetic adaptations that promote the dominance of Bacteroidetes during phytoplankton blooms. |
| format | Article |
| id | doaj-art-6a7f78bc51d24b3da44b5f2d01d66655 |
| institution | Kabale University |
| issn | 1664-302X |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Microbiology |
| spelling | doaj-art-6a7f78bc51d24b3da44b5f2d01d666552025-01-28T22:16:44ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2024-11-011510.3389/fmicb.2024.14817021481702Specialized Bacteroidetes dominate the Arctic Ocean during marine spring bloomsÁlvaro Redondo-Río0Christopher J. Mundy1Javier Tamames2Carlos Pedrós-Alió3Department of Systems Biology, Centro Nacional de Biotecnología, CSIC, Madrid, SpainCentre for Earth Observation Science, Clayton H. Riddell Faculty of Environment, Earth, and Resources, University of Manitoba, Winnipeg, MB, CanadaDepartment of Systems Biology, Centro Nacional de Biotecnología, CSIC, Madrid, SpainDepartment of Systems Biology, Centro Nacional de Biotecnología, CSIC, Madrid, SpainA metagenomic time series from Arctic seawater was obtained from Dease Strait, to analyse the changes in bacterioplankton caused by the summer phytoplankton bloom. Bacterial clades specialized in the metabolism of polysaccharides, such as Bacteroidetes, became dominant along the bloom. These specialized taxa quickly displaced the microbial clades that dominate nutrient-poor waters during early spring, such as Archaea, Alpha-and Gammaproteobacteria. At the functional level, phyla Bacteroidetes, Planctomycetes, and Verrucomicrobia showed higher contents of polysaccharide-degradation functions. The Bacteroidetes community shifted toward species with higher polysaccharide-degrading capabilities, targeting algal polysaccharides in summer. Regarding transporters, Bacteroidetes dominated SusC-TonB transporters and had an exclusive family of glycoside-binding proteins (SusD). These proteins were used to identify polysaccharide-utilization loci that clustered transporters and polysaccharide-active enzymes, showing a higher level of specialization toward polysaccharide use. Altogether, these genomic features point to the genetic adaptations that promote the dominance of Bacteroidetes during phytoplankton blooms.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1481702/fullmetagenomicsmarineArcticBacteroidetescazymespolysaccharides |
| spellingShingle | Álvaro Redondo-Río Christopher J. Mundy Javier Tamames Carlos Pedrós-Alió Specialized Bacteroidetes dominate the Arctic Ocean during marine spring blooms Frontiers in Microbiology metagenomics marine Arctic Bacteroidetes cazymes polysaccharides |
| title | Specialized Bacteroidetes dominate the Arctic Ocean during marine spring blooms |
| title_full | Specialized Bacteroidetes dominate the Arctic Ocean during marine spring blooms |
| title_fullStr | Specialized Bacteroidetes dominate the Arctic Ocean during marine spring blooms |
| title_full_unstemmed | Specialized Bacteroidetes dominate the Arctic Ocean during marine spring blooms |
| title_short | Specialized Bacteroidetes dominate the Arctic Ocean during marine spring blooms |
| title_sort | specialized bacteroidetes dominate the arctic ocean during marine spring blooms |
| topic | metagenomics marine Arctic Bacteroidetes cazymes polysaccharides |
| url | https://www.frontiersin.org/articles/10.3389/fmicb.2024.1481702/full |
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