Significant CO2 fixation by small prymnesiophytes in the subtropical and tropical northeast Atlantic Ocean
Global estimates indicate the oceans are responsible for approximately half of the carbon dioxide fixed on Earth. Organisms ⩽5 μm in size dominate open ocean phytoplankton communities in terms of abundance and CO 2 fixation, with the cyanobacterial genera Prochlorococcus and Synechococcus numericall...
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| description | Global estimates indicate the oceans are responsible for approximately half of the carbon dioxide fixed on Earth. Organisms ⩽5 μm in size dominate open ocean phytoplankton communities in terms of abundance and CO
2
fixation, with the cyanobacterial genera
Prochlorococcus
and
Synechococcus
numerically the most abundant and more extensively studied compared with small eukaryotes. However, the contribution of specific taxonomic groups to marine CO
2
fixation is still poorly known. In this study, we show that among the phytoplankton, small eukaryotes contribute significantly to CO
2
fixation (44%) because of their larger cell volume and thereby higher cell-specific CO
2
fixation rates. Within the eukaryotes, two groups, herein called Euk-A and Euk-B, were distinguished based on their flow cytometric signature. Euk-A, the most abundant group, contained cells 1.8±0.1 μm in size while Euk-B was the least abundant but cells were larger (2.8±0.2 μm). The Euk-B group comprising prymnesiophytes (73±13%) belonging largely to lineages with no close cultured counterparts accounted for up to 38% of the total primary production in the subtropical and tropical northeast Atlantic Ocean, suggesting a key role of this group in oceanic CO
2
fixation. |
| doi_str_mv | 10.1038/ismej.2010.36 |
| format | Article |
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2
fixation, with the cyanobacterial genera
Prochlorococcus
and
Synechococcus
numerically the most abundant and more extensively studied compared with small eukaryotes. However, the contribution of specific taxonomic groups to marine CO
2
fixation is still poorly known. In this study, we show that among the phytoplankton, small eukaryotes contribute significantly to CO
2
fixation (44%) because of their larger cell volume and thereby higher cell-specific CO
2
fixation rates. Within the eukaryotes, two groups, herein called Euk-A and Euk-B, were distinguished based on their flow cytometric signature. Euk-A, the most abundant group, contained cells 1.8±0.1 μm in size while Euk-B was the least abundant but cells were larger (2.8±0.2 μm). The Euk-B group comprising prymnesiophytes (73±13%) belonging largely to lineages with no close cultured counterparts accounted for up to 38% of the total primary production in the subtropical and tropical northeast Atlantic Ocean, suggesting a key role of this group in oceanic CO
2
fixation.</description><identifier>ISSN: 1751-7362</identifier><identifier>EISSN: 1751-7370</identifier><identifier>DOI: 10.1038/ismej.2010.36</identifier><identifier>PMID: 20393575</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>631/158/2446/2447 ; 631/326/2565/855 ; Atlantic Ocean ; Biomedical and Life Sciences ; Carbon Dioxide - metabolism ; Carbon dioxide fixation ; Cell Count ; Cell Size ; DNA - chemistry ; DNA - genetics ; DNA - isolation & purification ; Ecology ; Environmental Sciences ; Eukaryota - classification ; Eukaryota - cytology ; Eukaryota - isolation & purification ; Eukaryota - metabolism ; Evolutionary Biology ; Flow Cytometry ; In Situ Hybridization, Fluorescence ; Life Sciences ; Metagenome ; Microbial Ecology ; Microbial Genetics and Genomics ; Microbiology ; Molecular Sequence Data ; Oceans ; original-article ; Phototrophic Processes ; Phytoplankton ; Phytoplankton - metabolism ; Primary production ; Prochlorococcus - classification ; Prochlorococcus - genetics ; Prochlorococcus - isolation & purification ; Prochlorococcus - metabolism ; Sequence Analysis, DNA ; Synechococcus - classification ; Synechococcus - genetics ; Synechococcus - isolation & purification ; Synechococcus - metabolism</subject><ispartof>The ISME Journal, 2010-09, Vol.4 (9), p.1180-1192</ispartof><rights>International Society for Microbial Ecology 2010</rights><rights>Copyright Nature Publishing Group Sep 2010</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c498t-694638435cda04569d598e13f25917a2d8ef877a44a03375e234dd79d99e0633</citedby><cites>FETCH-LOGICAL-c498t-694638435cda04569d598e13f25917a2d8ef877a44a03375e234dd79d99e0633</cites><orcidid>0000-0003-4982-5807</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,315,781,785,886,27929,27930</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/20393575$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-04262967$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Jardillier, Ludwig</creatorcontrib><creatorcontrib>Zubkov, Mikhail V</creatorcontrib><creatorcontrib>Pearman, John</creatorcontrib><creatorcontrib>Scanlan, David J</creatorcontrib><title>Significant CO2 fixation by small prymnesiophytes in the subtropical and tropical northeast Atlantic Ocean</title><title>The ISME Journal</title><addtitle>ISME J</addtitle><addtitle>ISME J</addtitle><description>Global estimates indicate the oceans are responsible for approximately half of the carbon dioxide fixed on Earth. Organisms ⩽5 μm in size dominate open ocean phytoplankton communities in terms of abundance and CO
2
fixation, with the cyanobacterial genera
Prochlorococcus
and
Synechococcus
numerically the most abundant and more extensively studied compared with small eukaryotes. However, the contribution of specific taxonomic groups to marine CO
2
fixation is still poorly known. In this study, we show that among the phytoplankton, small eukaryotes contribute significantly to CO
2
fixation (44%) because of their larger cell volume and thereby higher cell-specific CO
2
fixation rates. Within the eukaryotes, two groups, herein called Euk-A and Euk-B, were distinguished based on their flow cytometric signature. Euk-A, the most abundant group, contained cells 1.8±0.1 μm in size while Euk-B was the least abundant but cells were larger (2.8±0.2 μm). The Euk-B group comprising prymnesiophytes (73±13%) belonging largely to lineages with no close cultured counterparts accounted for up to 38% of the total primary production in the subtropical and tropical northeast Atlantic Ocean, suggesting a key role of this group in oceanic CO
2
fixation.</description><subject>631/158/2446/2447</subject><subject>631/326/2565/855</subject><subject>Atlantic Ocean</subject><subject>Biomedical and Life Sciences</subject><subject>Carbon Dioxide - metabolism</subject><subject>Carbon dioxide fixation</subject><subject>Cell Count</subject><subject>Cell Size</subject><subject>DNA - chemistry</subject><subject>DNA - genetics</subject><subject>DNA - isolation & purification</subject><subject>Ecology</subject><subject>Environmental Sciences</subject><subject>Eukaryota - classification</subject><subject>Eukaryota - cytology</subject><subject>Eukaryota - isolation & purification</subject><subject>Eukaryota - metabolism</subject><subject>Evolutionary Biology</subject><subject>Flow Cytometry</subject><subject>In Situ Hybridization, Fluorescence</subject><subject>Life Sciences</subject><subject>Metagenome</subject><subject>Microbial Ecology</subject><subject>Microbial Genetics and Genomics</subject><subject>Microbiology</subject><subject>Molecular Sequence Data</subject><subject>Oceans</subject><subject>original-article</subject><subject>Phototrophic Processes</subject><subject>Phytoplankton</subject><subject>Phytoplankton - 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Academic</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>The ISME Journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Jardillier, Ludwig</au><au>Zubkov, Mikhail V</au><au>Pearman, John</au><au>Scanlan, David J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Significant CO2 fixation by small prymnesiophytes in the subtropical and tropical northeast Atlantic Ocean</atitle><jtitle>The ISME Journal</jtitle><stitle>ISME J</stitle><addtitle>ISME J</addtitle><date>2010-09-01</date><risdate>2010</risdate><volume>4</volume><issue>9</issue><spage>1180</spage><epage>1192</epage><pages>1180-1192</pages><issn>1751-7362</issn><eissn>1751-7370</eissn><abstract>Global estimates indicate the oceans are responsible for approximately half of the carbon dioxide fixed on Earth. Organisms ⩽5 μm in size dominate open ocean phytoplankton communities in terms of abundance and CO
2
fixation, with the cyanobacterial genera
Prochlorococcus
and
Synechococcus
numerically the most abundant and more extensively studied compared with small eukaryotes. However, the contribution of specific taxonomic groups to marine CO
2
fixation is still poorly known. In this study, we show that among the phytoplankton, small eukaryotes contribute significantly to CO
2
fixation (44%) because of their larger cell volume and thereby higher cell-specific CO
2
fixation rates. Within the eukaryotes, two groups, herein called Euk-A and Euk-B, were distinguished based on their flow cytometric signature. Euk-A, the most abundant group, contained cells 1.8±0.1 μm in size while Euk-B was the least abundant but cells were larger (2.8±0.2 μm). The Euk-B group comprising prymnesiophytes (73±13%) belonging largely to lineages with no close cultured counterparts accounted for up to 38% of the total primary production in the subtropical and tropical northeast Atlantic Ocean, suggesting a key role of this group in oceanic CO
2
fixation.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>20393575</pmid><doi>10.1038/ismej.2010.36</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0003-4982-5807</orcidid><oa>free_for_read</oa></addata></record> |
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| source | MEDLINE; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; Oxford Journals Open Access Collection |
| subjects | 631/158/2446/2447 631/326/2565/855 Atlantic Ocean Biomedical and Life Sciences Carbon Dioxide - metabolism Carbon dioxide fixation Cell Count Cell Size DNA - chemistry DNA - genetics DNA - isolation & purification Ecology Environmental Sciences Eukaryota - classification Eukaryota - cytology Eukaryota - isolation & purification Eukaryota - metabolism Evolutionary Biology Flow Cytometry In Situ Hybridization, Fluorescence Life Sciences Metagenome Microbial Ecology Microbial Genetics and Genomics Microbiology Molecular Sequence Data Oceans original-article Phototrophic Processes Phytoplankton Phytoplankton - metabolism Primary production Prochlorococcus - classification Prochlorococcus - genetics Prochlorococcus - isolation & purification Prochlorococcus - metabolism Sequence Analysis, DNA Synechococcus - classification Synechococcus - genetics Synechococcus - isolation & purification Synechococcus - metabolism |
| title | Significant CO2 fixation by small prymnesiophytes in the subtropical and tropical northeast Atlantic Ocean |
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