Differential processing of dissolved and particulate organic matter by deep-sea sponges and their microbial symbionts
Deep-sea sponges create hotspots of biodiversity and biological activity in the otherwise barren deep-sea. However, it remains elusive how sponge hosts and their microbial symbionts acquire and process food in these food-limited environments. Therefore, we traced the processing (i.e. assimilation an...
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ftpubmed:oai:pubmedcentral.nih.gov:7567089 2023-05-15T17:33:45+02:00 Differential processing of dissolved and particulate organic matter by deep-sea sponges and their microbial symbionts Bart, Martijn C. de Kluijver, Anna Hoetjes, Sean Absalah, Samira Mueller, Benjamin Kenchington, Ellen Rapp, Hans Tore de Goeij, Jasper M. 2020-10-15 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567089/ http://www.ncbi.nlm.nih.gov/pubmed/33060808 https://doi.org/10.1038/s41598-020-74670-0 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567089/ http://www.ncbi.nlm.nih.gov/pubmed/33060808 http://dx.doi.org/10.1038/s41598-020-74670-0 © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. CC-BY Sci Rep Article Text 2020 ftpubmed https://doi.org/10.1038/s41598-020-74670-0 2020-10-25T00:44:34Z Deep-sea sponges create hotspots of biodiversity and biological activity in the otherwise barren deep-sea. However, it remains elusive how sponge hosts and their microbial symbionts acquire and process food in these food-limited environments. Therefore, we traced the processing (i.e. assimilation and respiration) of (13)C- and (15)N-enriched dissolved organic matter (DOM) and bacteria by three dominant North Atlantic deep-sea sponges: the high microbial abundance (HMA) demosponge Geodia barretti, the low microbial abundance (LMA) demosponge Hymedesmia paupertas, and the LMA hexactinellid Vazella pourtalesii. We also assessed the assimilation of both food sources into sponge- and bacteria-specific phospholipid-derived fatty acid (PLFA) biomarkers. All sponges were capable of assimilating DOM as well as bacteria. However, processing of the two food sources differed considerably between the tested species: the DOM assimilation-to-respiration efficiency was highest for the HMA sponge, yet uptake rates were 4–5 times lower compared to LMA sponges. In contrast, bacteria were assimilated most efficiently and at the highest rate by the hexactinellid compared to the demosponges. Our results indicate that phylogeny and functional traits (e.g., abundance of microbial symbionts, morphology) influence food preferences and diet composition of sponges, which further helps to understand their role as key ecosystem engineers of deep-sea habitats. Text North Atlantic PubMed Central (PMC) Scientific Reports 10 1 |
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Article Bart, Martijn C. de Kluijver, Anna Hoetjes, Sean Absalah, Samira Mueller, Benjamin Kenchington, Ellen Rapp, Hans Tore de Goeij, Jasper M. Differential processing of dissolved and particulate organic matter by deep-sea sponges and their microbial symbionts |
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Deep-sea sponges create hotspots of biodiversity and biological activity in the otherwise barren deep-sea. However, it remains elusive how sponge hosts and their microbial symbionts acquire and process food in these food-limited environments. Therefore, we traced the processing (i.e. assimilation and respiration) of (13)C- and (15)N-enriched dissolved organic matter (DOM) and bacteria by three dominant North Atlantic deep-sea sponges: the high microbial abundance (HMA) demosponge Geodia barretti, the low microbial abundance (LMA) demosponge Hymedesmia paupertas, and the LMA hexactinellid Vazella pourtalesii. We also assessed the assimilation of both food sources into sponge- and bacteria-specific phospholipid-derived fatty acid (PLFA) biomarkers. All sponges were capable of assimilating DOM as well as bacteria. However, processing of the two food sources differed considerably between the tested species: the DOM assimilation-to-respiration efficiency was highest for the HMA sponge, yet uptake rates were 4–5 times lower compared to LMA sponges. In contrast, bacteria were assimilated most efficiently and at the highest rate by the hexactinellid compared to the demosponges. Our results indicate that phylogeny and functional traits (e.g., abundance of microbial symbionts, morphology) influence food preferences and diet composition of sponges, which further helps to understand their role as key ecosystem engineers of deep-sea habitats. |
format |
Text |
author |
Bart, Martijn C. de Kluijver, Anna Hoetjes, Sean Absalah, Samira Mueller, Benjamin Kenchington, Ellen Rapp, Hans Tore de Goeij, Jasper M. |
author_facet |
Bart, Martijn C. de Kluijver, Anna Hoetjes, Sean Absalah, Samira Mueller, Benjamin Kenchington, Ellen Rapp, Hans Tore de Goeij, Jasper M. |
author_sort |
Bart, Martijn C. |
title |
Differential processing of dissolved and particulate organic matter by deep-sea sponges and their microbial symbionts |
title_short |
Differential processing of dissolved and particulate organic matter by deep-sea sponges and their microbial symbionts |
title_full |
Differential processing of dissolved and particulate organic matter by deep-sea sponges and their microbial symbionts |
title_fullStr |
Differential processing of dissolved and particulate organic matter by deep-sea sponges and their microbial symbionts |
title_full_unstemmed |
Differential processing of dissolved and particulate organic matter by deep-sea sponges and their microbial symbionts |
title_sort |
differential processing of dissolved and particulate organic matter by deep-sea sponges and their microbial symbionts |
publisher |
Nature Publishing Group UK |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567089/ http://www.ncbi.nlm.nih.gov/pubmed/33060808 https://doi.org/10.1038/s41598-020-74670-0 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Sci Rep |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7567089/ http://www.ncbi.nlm.nih.gov/pubmed/33060808 http://dx.doi.org/10.1038/s41598-020-74670-0 |
op_rights |
© The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41598-020-74670-0 |
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Scientific Reports |
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10 |
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1 |
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