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Faster growth of the major prokaryotic versus eukaryotic CO(2) fixers in the oligotrophic ocean
Because maintenance of non-scalable cellular components—membranes and chromosomes—requires an increasing fraction of energy as cell size decreases, miniaturization comes at a considerable energetic cost for a phytoplanktonic cell. Consequently, if eukaryotes can use their superior energetic resource...
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Formato: | Online Artículo Texto |
Lenguaje: | English |
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Nature Pub. Group
2014
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4015317/ https://www.ncbi.nlm.nih.gov/pubmed/24777140 http://dx.doi.org/10.1038/ncomms4776 |
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author | Zubkov, Mikhail V. |
author_facet | Zubkov, Mikhail V. |
author_sort | Zubkov, Mikhail V. |
collection | PubMed |
description | Because maintenance of non-scalable cellular components—membranes and chromosomes—requires an increasing fraction of energy as cell size decreases, miniaturization comes at a considerable energetic cost for a phytoplanktonic cell. Consequently, if eukaryotes can use their superior energetic resources to acquire nutrients with more or even similar efficiency compared with prokaryotes, larger unicellular eukaryotes should be able to achieve higher growth rates than smaller cyanobacteria. Here, to test this hypothesis, we directly compare the intrinsic growth rates of phototrophic prokaryotes and eukaryotes from the equatorial to temperate South Atlantic using an original flow cytometric (14)CO(2)-tracer approach. At the ocean basin scale, cyanobacteria double their biomass twice as frequently as the picoeukaryotes indicating that the prokaryotes are faster growing CO(2) fixers, better adapted to phototrophic living in the oligotrophic open ocean—the most extensive biome on Earth. |
format | Online Article Text |
id | pubmed-4015317 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Nature Pub. Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-40153172014-05-13 Faster growth of the major prokaryotic versus eukaryotic CO(2) fixers in the oligotrophic ocean Zubkov, Mikhail V. Nat Commun Article Because maintenance of non-scalable cellular components—membranes and chromosomes—requires an increasing fraction of energy as cell size decreases, miniaturization comes at a considerable energetic cost for a phytoplanktonic cell. Consequently, if eukaryotes can use their superior energetic resources to acquire nutrients with more or even similar efficiency compared with prokaryotes, larger unicellular eukaryotes should be able to achieve higher growth rates than smaller cyanobacteria. Here, to test this hypothesis, we directly compare the intrinsic growth rates of phototrophic prokaryotes and eukaryotes from the equatorial to temperate South Atlantic using an original flow cytometric (14)CO(2)-tracer approach. At the ocean basin scale, cyanobacteria double their biomass twice as frequently as the picoeukaryotes indicating that the prokaryotes are faster growing CO(2) fixers, better adapted to phototrophic living in the oligotrophic open ocean—the most extensive biome on Earth. Nature Pub. Group 2014-04-29 /pmc/articles/PMC4015317/ /pubmed/24777140 http://dx.doi.org/10.1038/ncomms4776 Text en Copyright © 2014, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-by/3.0/ This work is licensed under a Creative Commons Attribution 3.0 Unported License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Article Zubkov, Mikhail V. Faster growth of the major prokaryotic versus eukaryotic CO(2) fixers in the oligotrophic ocean |
title | Faster growth of the major prokaryotic versus eukaryotic CO(2) fixers in the oligotrophic ocean |
title_full | Faster growth of the major prokaryotic versus eukaryotic CO(2) fixers in the oligotrophic ocean |
title_fullStr | Faster growth of the major prokaryotic versus eukaryotic CO(2) fixers in the oligotrophic ocean |
title_full_unstemmed | Faster growth of the major prokaryotic versus eukaryotic CO(2) fixers in the oligotrophic ocean |
title_short | Faster growth of the major prokaryotic versus eukaryotic CO(2) fixers in the oligotrophic ocean |
title_sort | faster growth of the major prokaryotic versus eukaryotic co(2) fixers in the oligotrophic ocean |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4015317/ https://www.ncbi.nlm.nih.gov/pubmed/24777140 http://dx.doi.org/10.1038/ncomms4776 |
work_keys_str_mv | AT zubkovmikhailv fastergrowthofthemajorprokaryoticversuseukaryoticco2fixersintheoligotrophicocean |