Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre
Despite generally low primary productivity and diatom abundances in oligotrophic subtropical gyres, the North Atlantic Subtropical Gyre (NASG) exhibits significant diatom-driven carbon export on an annual basis. Subsurface pulses of nutrients likely fuel brief episodes of diatom growth, but the exac...
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Springer Science and Business Media LLC
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Online Access: | https://archimer.ifremer.fr/doc/00511/62288/66513.pdf https://archimer.ifremer.fr/doc/00511/62288/66514.pdf https://archimer.ifremer.fr/doc/00511/62288/66515.xlsx https://archimer.ifremer.fr/doc/00511/62288/66516.xlsx https://archimer.ifremer.fr/doc/00511/62288/66517.xlsx https://archimer.ifremer.fr/doc/00511/62288/66518.xlsx https://doi.org/10.1038/s41396-019-0489-6 https://archimer.ifremer.fr/doc/00511/62288/ |
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ftarchimer:oai:archimer.ifremer.fr:62288 2023-05-15T17:33:05+02:00 Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre Lampe, Robert H. Wang, Seaver Cassar, Nicolas Marchetti, Adrian 2019-12 application/pdf https://archimer.ifremer.fr/doc/00511/62288/66513.pdf https://archimer.ifremer.fr/doc/00511/62288/66514.pdf https://archimer.ifremer.fr/doc/00511/62288/66515.xlsx https://archimer.ifremer.fr/doc/00511/62288/66516.xlsx https://archimer.ifremer.fr/doc/00511/62288/66517.xlsx https://archimer.ifremer.fr/doc/00511/62288/66518.xlsx https://doi.org/10.1038/s41396-019-0489-6 https://archimer.ifremer.fr/doc/00511/62288/ eng eng Springer Science and Business Media LLC https://archimer.ifremer.fr/doc/00511/62288/66513.pdf https://archimer.ifremer.fr/doc/00511/62288/66514.pdf https://archimer.ifremer.fr/doc/00511/62288/66515.xlsx https://archimer.ifremer.fr/doc/00511/62288/66516.xlsx https://archimer.ifremer.fr/doc/00511/62288/66517.xlsx https://archimer.ifremer.fr/doc/00511/62288/66518.xlsx doi:10.1038/s41396-019-0489-6 https://archimer.ifremer.fr/doc/00511/62288/ info:eu-repo/semantics/openAccess restricted use Isme Journal (1751-7362) (Springer Science and Business Media LLC), 2019-12 , Vol. 13 , N. 12 , P. 2984-2997 text Publication info:eu-repo/semantics/article 2019 ftarchimer https://doi.org/10.1038/s41396-019-0489-6 2021-09-23T20:33:23Z Despite generally low primary productivity and diatom abundances in oligotrophic subtropical gyres, the North Atlantic Subtropical Gyre (NASG) exhibits significant diatom-driven carbon export on an annual basis. Subsurface pulses of nutrients likely fuel brief episodes of diatom growth, but the exact mechanisms utilized by diatoms in response to these nutrient injections remain understudied within near-natural settings. Here we simulated delivery of subsurface nutrients and compare the response among eukaryotic phytoplankton using a combination of physiological techniques and metatranscriptomics. We show that eukaryotic phytoplankton groups exhibit differing levels of transcriptional responsiveness and expression of orthologous genes in response to release from nutrient limitation. In particular, strategies for use of newly delivered nutrients are distinct among phytoplankton groups. Diatoms channel new nitrate to growth-related strategies while physiological measurements and gene expression patterns of other groups suggest alternative strategies. The gene expression patterns displayed here provide insights into the cellular mechanisms that underlie diatom subsistence during chronic nitrogen-depleted conditions and growth upon nutrient delivery that can enhance carbon export from the surface ocean. Article in Journal/Newspaper North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) The ISME Journal 13 12 2984 2997 |
institution |
Open Polar |
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Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
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ftarchimer |
language |
English |
description |
Despite generally low primary productivity and diatom abundances in oligotrophic subtropical gyres, the North Atlantic Subtropical Gyre (NASG) exhibits significant diatom-driven carbon export on an annual basis. Subsurface pulses of nutrients likely fuel brief episodes of diatom growth, but the exact mechanisms utilized by diatoms in response to these nutrient injections remain understudied within near-natural settings. Here we simulated delivery of subsurface nutrients and compare the response among eukaryotic phytoplankton using a combination of physiological techniques and metatranscriptomics. We show that eukaryotic phytoplankton groups exhibit differing levels of transcriptional responsiveness and expression of orthologous genes in response to release from nutrient limitation. In particular, strategies for use of newly delivered nutrients are distinct among phytoplankton groups. Diatoms channel new nitrate to growth-related strategies while physiological measurements and gene expression patterns of other groups suggest alternative strategies. The gene expression patterns displayed here provide insights into the cellular mechanisms that underlie diatom subsistence during chronic nitrogen-depleted conditions and growth upon nutrient delivery that can enhance carbon export from the surface ocean. |
format |
Article in Journal/Newspaper |
author |
Lampe, Robert H. Wang, Seaver Cassar, Nicolas Marchetti, Adrian |
spellingShingle |
Lampe, Robert H. Wang, Seaver Cassar, Nicolas Marchetti, Adrian Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre |
author_facet |
Lampe, Robert H. Wang, Seaver Cassar, Nicolas Marchetti, Adrian |
author_sort |
Lampe, Robert H. |
title |
Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre |
title_short |
Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre |
title_full |
Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre |
title_fullStr |
Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre |
title_full_unstemmed |
Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre |
title_sort |
strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre |
publisher |
Springer Science and Business Media LLC |
publishDate |
2019 |
url |
https://archimer.ifremer.fr/doc/00511/62288/66513.pdf https://archimer.ifremer.fr/doc/00511/62288/66514.pdf https://archimer.ifremer.fr/doc/00511/62288/66515.xlsx https://archimer.ifremer.fr/doc/00511/62288/66516.xlsx https://archimer.ifremer.fr/doc/00511/62288/66517.xlsx https://archimer.ifremer.fr/doc/00511/62288/66518.xlsx https://doi.org/10.1038/s41396-019-0489-6 https://archimer.ifremer.fr/doc/00511/62288/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Isme Journal (1751-7362) (Springer Science and Business Media LLC), 2019-12 , Vol. 13 , N. 12 , P. 2984-2997 |
op_relation |
https://archimer.ifremer.fr/doc/00511/62288/66513.pdf https://archimer.ifremer.fr/doc/00511/62288/66514.pdf https://archimer.ifremer.fr/doc/00511/62288/66515.xlsx https://archimer.ifremer.fr/doc/00511/62288/66516.xlsx https://archimer.ifremer.fr/doc/00511/62288/66517.xlsx https://archimer.ifremer.fr/doc/00511/62288/66518.xlsx doi:10.1038/s41396-019-0489-6 https://archimer.ifremer.fr/doc/00511/62288/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1038/s41396-019-0489-6 |
container_title |
The ISME Journal |
container_volume |
13 |
container_issue |
12 |
container_start_page |
2984 |
op_container_end_page |
2997 |
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