Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre
WOS:000497952500008 International audience 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 br...
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ftunivnantes:oai:HAL:hal-02871389v1 2023-05-15T17:33:54+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 Scripps Institution of Oceanography (SIO - UC San Diego) University of California San Diego (UC San Diego) University of California (UC)-University of California (UC) University of North Carolina Chapel Hill (UNC) University of North Carolina System (UNC) Nicholas School of the Environment Duke University Durham Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) LabexMER Marine Excellence Research: a changing ocean (2010) ANR-10-LABX-0019,LabexMER,LabexMER Marine Excellence Research: a changing ocean(2010) 2019 https://hal.archives-ouvertes.fr/hal-02871389 https://doi.org/10.1038/s41396-019-0489-6 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41396-019-0489-6 hal-02871389 https://hal.archives-ouvertes.fr/hal-02871389 doi:10.1038/s41396-019-0489-6 PUBMEDCENTRAL: PMC6863841 ISSN: 1751-7362 EISSN: 1751-7370 ISME Journal https://hal.archives-ouvertes.fr/hal-02871389 ISME Journal, 2019, 13 (12), pp.2984-2997. ⟨10.1038/s41396-019-0489-6⟩ ACL marine-phytoplankton physiological-responses atlantic time-series annual silica cycle biogeochemical responses euphotic zone late-winter storms nitrate uptake nitric-oxide sargasso sea [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere info:eu-repo/semantics/article Journal articles 2019 ftunivnantes https://doi.org/10.1038/s41396-019-0489-6 2022-12-07T01:22:34Z WOS:000497952500008 International audience 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 Université de Nantes: HAL-UNIV-NANTES The ISME Journal 13 12 2984 2997 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
ACL marine-phytoplankton physiological-responses atlantic time-series annual silica cycle biogeochemical responses euphotic zone late-winter storms nitrate uptake nitric-oxide sargasso sea [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
spellingShingle |
ACL marine-phytoplankton physiological-responses atlantic time-series annual silica cycle biogeochemical responses euphotic zone late-winter storms nitrate uptake nitric-oxide sargasso sea [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere Lampe, Robert H. Wang, Seaver Cassar, Nicolas Marchetti, Adrian Strategies among phytoplankton in response to alleviation of nutrient stress in a subtropical gyre |
topic_facet |
ACL marine-phytoplankton physiological-responses atlantic time-series annual silica cycle biogeochemical responses euphotic zone late-winter storms nitrate uptake nitric-oxide sargasso sea [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere |
description |
WOS:000497952500008 International audience 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. |
author2 |
Scripps Institution of Oceanography (SIO - UC San Diego) University of California San Diego (UC San Diego) University of California (UC)-University of California (UC) University of North Carolina Chapel Hill (UNC) University of North Carolina System (UNC) Nicholas School of the Environment Duke University Durham Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) LabexMER Marine Excellence Research: a changing ocean (2010) ANR-10-LABX-0019,LabexMER,LabexMER Marine Excellence Research: a changing ocean(2010) |
format |
Article in Journal/Newspaper |
author |
Lampe, Robert H. Wang, Seaver Cassar, Nicolas Marchetti, Adrian |
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 |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.archives-ouvertes.fr/hal-02871389 https://doi.org/10.1038/s41396-019-0489-6 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
ISSN: 1751-7362 EISSN: 1751-7370 ISME Journal https://hal.archives-ouvertes.fr/hal-02871389 ISME Journal, 2019, 13 (12), pp.2984-2997. ⟨10.1038/s41396-019-0489-6⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41396-019-0489-6 hal-02871389 https://hal.archives-ouvertes.fr/hal-02871389 doi:10.1038/s41396-019-0489-6 PUBMEDCENTRAL: PMC6863841 |
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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1766132557159596032 |