Microbial associates of an endemic Mediterranean seagrass enhance the access of the host and the surrounding seawater to inorganic nitrogen under ocean acidification
Seagrasses are important primary producers in oceans worldwide. They live in shallow coastal waters that are experiencing carbon dioxide enrichment and ocean acidification. Posidonia oceanica, an endemic seagrass species that dominates the Mediterranean Sea, achieves high abundances in seawater with...
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Online Access: | https://hal.science/hal-04308981 https://hal.science/hal-04308981/document https://hal.science/hal-04308981/file/Pfisteretal%202023%20Microbial%20associates%20Posidonia%20Ischia%20Scie%20Reports.pdf https://doi.org/10.1038/s41598-023-47126-4 |
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ftinsu:oai:HAL:hal-04308981v1 2023-12-31T10:21:29+01:00 Microbial associates of an endemic Mediterranean seagrass enhance the access of the host and the surrounding seawater to inorganic nitrogen under ocean acidification Pfister, Catherine, A Cardini, Ulisse Mirasole, Alice Montilla, Luis, M Veseli, Iva Gattuso, Jean-Pierre Teixido, Nuria Stazione Zoologica Anton Dohrn (SZN) Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Institute for Sustainable Development and International Relations Sciences Po (Sciences Po) 2023-11-15 https://hal.science/hal-04308981 https://hal.science/hal-04308981/document https://hal.science/hal-04308981/file/Pfisteretal%202023%20Microbial%20associates%20Posidonia%20Ischia%20Scie%20Reports.pdf https://doi.org/10.1038/s41598-023-47126-4 en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-023-47126-4 hal-04308981 https://hal.science/hal-04308981 https://hal.science/hal-04308981/document https://hal.science/hal-04308981/file/Pfisteretal%202023%20Microbial%20associates%20Posidonia%20Ischia%20Scie%20Reports.pdf doi:10.1038/s41598-023-47126-4 info:eu-repo/semantics/OpenAccess ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.science/hal-04308981 Scientific Reports, 2023, 13, ⟨10.1038/s41598-023-47126-4⟩ [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2023 ftinsu https://doi.org/10.1038/s41598-023-47126-4 2023-12-06T17:23:11Z Seagrasses are important primary producers in oceans worldwide. They live in shallow coastal waters that are experiencing carbon dioxide enrichment and ocean acidification. Posidonia oceanica, an endemic seagrass species that dominates the Mediterranean Sea, achieves high abundances in seawater with relatively low concentrations of dissolved inorganic nitrogen. Here we tested whether microbial metabolisms associated with P. oceanica and surrounding seawater enhance seagrass access to nitrogen. Using stable isotope enrichments of intact seagrass with amino acids, we showed that ammonification by free-living and seagrass-associated microbes produce ammonium that is likely used by seagrass and surrounding particulate organic matter. Metagenomic analysis of the epiphytic biofilm on the blades and rhizomes support the ubiquity of microbial ammonification genes in this system. Further, we leveraged the presence of natural carbon dioxide vents and show that the presence of P. oceanica enhanced the uptake of nitrogen by water column particulate organic matter, increasing carbon fixation by a factor of 8.6-17.4 with the greatest effect at CO 2 vent sites. However, microbial ammonification was reduced at lower pH, suggesting that future ocean climate change will compromise this microbial process. Thus, the seagrass holobiont enhances water column productivity, even in the context of ocean acidification. Article in Journal/Newspaper Ocean acidification Institut national des sciences de l'Univers: HAL-INSU Scientific Reports 13 1 |
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Open Polar |
collection |
Institut national des sciences de l'Univers: HAL-INSU |
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ftinsu |
language |
English |
topic |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology Pfister, Catherine, A Cardini, Ulisse Mirasole, Alice Montilla, Luis, M Veseli, Iva Gattuso, Jean-Pierre Teixido, Nuria Microbial associates of an endemic Mediterranean seagrass enhance the access of the host and the surrounding seawater to inorganic nitrogen under ocean acidification |
topic_facet |
[SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
Seagrasses are important primary producers in oceans worldwide. They live in shallow coastal waters that are experiencing carbon dioxide enrichment and ocean acidification. Posidonia oceanica, an endemic seagrass species that dominates the Mediterranean Sea, achieves high abundances in seawater with relatively low concentrations of dissolved inorganic nitrogen. Here we tested whether microbial metabolisms associated with P. oceanica and surrounding seawater enhance seagrass access to nitrogen. Using stable isotope enrichments of intact seagrass with amino acids, we showed that ammonification by free-living and seagrass-associated microbes produce ammonium that is likely used by seagrass and surrounding particulate organic matter. Metagenomic analysis of the epiphytic biofilm on the blades and rhizomes support the ubiquity of microbial ammonification genes in this system. Further, we leveraged the presence of natural carbon dioxide vents and show that the presence of P. oceanica enhanced the uptake of nitrogen by water column particulate organic matter, increasing carbon fixation by a factor of 8.6-17.4 with the greatest effect at CO 2 vent sites. However, microbial ammonification was reduced at lower pH, suggesting that future ocean climate change will compromise this microbial process. Thus, the seagrass holobiont enhances water column productivity, even in the context of ocean acidification. |
author2 |
Stazione Zoologica Anton Dohrn (SZN) Laboratoire d'océanographie de Villefranche (LOV) Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Institut de la Mer de Villefranche (IMEV) Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS) Institute for Sustainable Development and International Relations Sciences Po (Sciences Po) |
format |
Article in Journal/Newspaper |
author |
Pfister, Catherine, A Cardini, Ulisse Mirasole, Alice Montilla, Luis, M Veseli, Iva Gattuso, Jean-Pierre Teixido, Nuria |
author_facet |
Pfister, Catherine, A Cardini, Ulisse Mirasole, Alice Montilla, Luis, M Veseli, Iva Gattuso, Jean-Pierre Teixido, Nuria |
author_sort |
Pfister, Catherine, A |
title |
Microbial associates of an endemic Mediterranean seagrass enhance the access of the host and the surrounding seawater to inorganic nitrogen under ocean acidification |
title_short |
Microbial associates of an endemic Mediterranean seagrass enhance the access of the host and the surrounding seawater to inorganic nitrogen under ocean acidification |
title_full |
Microbial associates of an endemic Mediterranean seagrass enhance the access of the host and the surrounding seawater to inorganic nitrogen under ocean acidification |
title_fullStr |
Microbial associates of an endemic Mediterranean seagrass enhance the access of the host and the surrounding seawater to inorganic nitrogen under ocean acidification |
title_full_unstemmed |
Microbial associates of an endemic Mediterranean seagrass enhance the access of the host and the surrounding seawater to inorganic nitrogen under ocean acidification |
title_sort |
microbial associates of an endemic mediterranean seagrass enhance the access of the host and the surrounding seawater to inorganic nitrogen under ocean acidification |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.science/hal-04308981 https://hal.science/hal-04308981/document https://hal.science/hal-04308981/file/Pfisteretal%202023%20Microbial%20associates%20Posidonia%20Ischia%20Scie%20Reports.pdf https://doi.org/10.1038/s41598-023-47126-4 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.science/hal-04308981 Scientific Reports, 2023, 13, ⟨10.1038/s41598-023-47126-4⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-023-47126-4 hal-04308981 https://hal.science/hal-04308981 https://hal.science/hal-04308981/document https://hal.science/hal-04308981/file/Pfisteretal%202023%20Microbial%20associates%20Posidonia%20Ischia%20Scie%20Reports.pdf doi:10.1038/s41598-023-47126-4 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1038/s41598-023-47126-4 |
container_title |
Scientific Reports |
container_volume |
13 |
container_issue |
1 |
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1786832268800557056 |