Microbes support enhanced nitrogen requirements of coral holobionts in a high CO 2 environment
Abstract Ocean acidification is posing a threat to calcifying organisms due to the increased energy requirements of calcification under high CO 2 conditions. The ability of scleractinian corals to cope with future ocean conditions will thus depend on their ability to fulfil their carbon requirement....
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Online Access: | http://dx.doi.org/10.1111/mec.16163 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.16163 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.16163 |
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crwiley:10.1111/mec.16163 2024-09-30T14:40:48+00:00 Microbes support enhanced nitrogen requirements of coral holobionts in a high CO 2 environment Meunier, Valentine Geissler, Laura Bonnet, Sophie Rädecker, Nils Perna, Gabriela Grosso, Olivier Lambert, Christophe Rodolfo‐Metalpa, Riccardo Voolstra, Christian R. Houlbrèque, Fanny Agence Nationale de la Recherche 2021 http://dx.doi.org/10.1111/mec.16163 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.16163 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.16163 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Molecular Ecology volume 30, issue 22, page 5888-5899 ISSN 0962-1083 1365-294X journal-article 2021 crwiley https://doi.org/10.1111/mec.16163 2024-09-17T04:44:59Z Abstract Ocean acidification is posing a threat to calcifying organisms due to the increased energy requirements of calcification under high CO 2 conditions. The ability of scleractinian corals to cope with future ocean conditions will thus depend on their ability to fulfil their carbon requirement. However, the primary productivity of coral holobionts is limited by low nitrogen (N) availability in coral reef waters. Here, we employed CO 2 seeps of Tutum Bay (Papua New Guinea) as a natural laboratory to understand how coral holobionts offset their increased energy requirements under high CO 2 conditions. Our results demonstrate for the first time that under high p CO 2 conditions, N assimilation pathways of Pocillopora damicornis are jointly modified. We found that diazotroph‐derived N assimilation rates in the Symbiodiniaceae were significantly higher in comparison to an ambient CO 2 control site, concomitant with a restructured diazotroph community and the specific prevalence of an alpha‐proteobacterium. Further, corals at the high CO 2 site also had increased feeding rates on picoplankton and in particular exhibited selective feeding on Synechococcus sp., known to be rich in N. Given the high abundance of picoplankton in oligotrophic waters at large, our results suggest that corals exhibiting flexible diazotrophic communities and capable of exploiting N‐rich picoplankton sources to offset their increased N requirements may be able to cope better in a high p CO 2 world. Article in Journal/Newspaper Ocean acidification Wiley Online Library Molecular Ecology 30 22 5888 5899 |
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English |
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Abstract Ocean acidification is posing a threat to calcifying organisms due to the increased energy requirements of calcification under high CO 2 conditions. The ability of scleractinian corals to cope with future ocean conditions will thus depend on their ability to fulfil their carbon requirement. However, the primary productivity of coral holobionts is limited by low nitrogen (N) availability in coral reef waters. Here, we employed CO 2 seeps of Tutum Bay (Papua New Guinea) as a natural laboratory to understand how coral holobionts offset their increased energy requirements under high CO 2 conditions. Our results demonstrate for the first time that under high p CO 2 conditions, N assimilation pathways of Pocillopora damicornis are jointly modified. We found that diazotroph‐derived N assimilation rates in the Symbiodiniaceae were significantly higher in comparison to an ambient CO 2 control site, concomitant with a restructured diazotroph community and the specific prevalence of an alpha‐proteobacterium. Further, corals at the high CO 2 site also had increased feeding rates on picoplankton and in particular exhibited selective feeding on Synechococcus sp., known to be rich in N. Given the high abundance of picoplankton in oligotrophic waters at large, our results suggest that corals exhibiting flexible diazotrophic communities and capable of exploiting N‐rich picoplankton sources to offset their increased N requirements may be able to cope better in a high p CO 2 world. |
author2 |
Agence Nationale de la Recherche |
format |
Article in Journal/Newspaper |
author |
Meunier, Valentine Geissler, Laura Bonnet, Sophie Rädecker, Nils Perna, Gabriela Grosso, Olivier Lambert, Christophe Rodolfo‐Metalpa, Riccardo Voolstra, Christian R. Houlbrèque, Fanny |
spellingShingle |
Meunier, Valentine Geissler, Laura Bonnet, Sophie Rädecker, Nils Perna, Gabriela Grosso, Olivier Lambert, Christophe Rodolfo‐Metalpa, Riccardo Voolstra, Christian R. Houlbrèque, Fanny Microbes support enhanced nitrogen requirements of coral holobionts in a high CO 2 environment |
author_facet |
Meunier, Valentine Geissler, Laura Bonnet, Sophie Rädecker, Nils Perna, Gabriela Grosso, Olivier Lambert, Christophe Rodolfo‐Metalpa, Riccardo Voolstra, Christian R. Houlbrèque, Fanny |
author_sort |
Meunier, Valentine |
title |
Microbes support enhanced nitrogen requirements of coral holobionts in a high CO 2 environment |
title_short |
Microbes support enhanced nitrogen requirements of coral holobionts in a high CO 2 environment |
title_full |
Microbes support enhanced nitrogen requirements of coral holobionts in a high CO 2 environment |
title_fullStr |
Microbes support enhanced nitrogen requirements of coral holobionts in a high CO 2 environment |
title_full_unstemmed |
Microbes support enhanced nitrogen requirements of coral holobionts in a high CO 2 environment |
title_sort |
microbes support enhanced nitrogen requirements of coral holobionts in a high co 2 environment |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/mec.16163 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.16163 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.16163 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Molecular Ecology volume 30, issue 22, page 5888-5899 ISSN 0962-1083 1365-294X |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1111/mec.16163 |
container_title |
Molecular Ecology |
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30 |
container_issue |
22 |
container_start_page |
5888 |
op_container_end_page |
5899 |
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1811643277511753728 |