Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf
Throughout coastal Antarctica, ice shelves separate oceanic waters from sunlight by hundreds of meters of ice. Historical studies have detected activity of nitrifying microorganisms in oceanic cavities below permanent ice shelves. However, little is known about the microbial composition and pathways...
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ftpubmed:oai:pubmedcentral.nih.gov:8748734 2023-05-15T13:49:05+02:00 Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf Martínez-Pérez, Clara Greening, Chris Bay, Sean K. Lappan, Rachael J. Zhao, Zihao De Corte, Daniele Hulbe, Christina Ohneiser, Christian Stevens, Craig Thomson, Blair Stepanauskas, Ramunas González, José M. Logares, Ramiro Herndl, Gerhard J. Morales, Sergio E. Baltar, Federico 2022-01-10 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8748734/ http://www.ncbi.nlm.nih.gov/pubmed/35013291 https://doi.org/10.1038/s41467-021-27769-5 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8748734/ http://www.ncbi.nlm.nih.gov/pubmed/35013291 http://dx.doi.org/10.1038/s41467-021-27769-5 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Nat Commun Article Text 2022 ftpubmed https://doi.org/10.1038/s41467-021-27769-5 2022-01-23T01:33:38Z Throughout coastal Antarctica, ice shelves separate oceanic waters from sunlight by hundreds of meters of ice. Historical studies have detected activity of nitrifying microorganisms in oceanic cavities below permanent ice shelves. However, little is known about the microbial composition and pathways that mediate these activities. In this study, we profiled the microbial communities beneath the Ross Ice Shelf using a multi-omics approach. Overall, beneath-shelf microorganisms are of comparable abundance and diversity, though distinct composition, relative to those in the open meso- and bathypelagic ocean. Production of new organic carbon is likely driven by aerobic lithoautotrophic archaea and bacteria that can use ammonium, nitrite, and sulfur compounds as electron donors. Also enriched were aerobic organoheterotrophic bacteria capable of degrading complex organic carbon substrates, likely derived from in situ fixed carbon and potentially refractory organic matter laterally advected by the below-shelf waters. Altogether, these findings uncover a taxonomically distinct microbial community potentially adapted to a highly oligotrophic marine environment and suggest that ocean cavity waters are primarily chemosynthetically-driven systems. Text Antarc* Antarctica Ice Shelf Ice Shelves Ross Ice Shelf PubMed Central (PMC) Ross Ice Shelf Nature Communications 13 1 |
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Article Martínez-Pérez, Clara Greening, Chris Bay, Sean K. Lappan, Rachael J. Zhao, Zihao De Corte, Daniele Hulbe, Christina Ohneiser, Christian Stevens, Craig Thomson, Blair Stepanauskas, Ramunas González, José M. Logares, Ramiro Herndl, Gerhard J. Morales, Sergio E. Baltar, Federico Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf |
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description |
Throughout coastal Antarctica, ice shelves separate oceanic waters from sunlight by hundreds of meters of ice. Historical studies have detected activity of nitrifying microorganisms in oceanic cavities below permanent ice shelves. However, little is known about the microbial composition and pathways that mediate these activities. In this study, we profiled the microbial communities beneath the Ross Ice Shelf using a multi-omics approach. Overall, beneath-shelf microorganisms are of comparable abundance and diversity, though distinct composition, relative to those in the open meso- and bathypelagic ocean. Production of new organic carbon is likely driven by aerobic lithoautotrophic archaea and bacteria that can use ammonium, nitrite, and sulfur compounds as electron donors. Also enriched were aerobic organoheterotrophic bacteria capable of degrading complex organic carbon substrates, likely derived from in situ fixed carbon and potentially refractory organic matter laterally advected by the below-shelf waters. Altogether, these findings uncover a taxonomically distinct microbial community potentially adapted to a highly oligotrophic marine environment and suggest that ocean cavity waters are primarily chemosynthetically-driven systems. |
format |
Text |
author |
Martínez-Pérez, Clara Greening, Chris Bay, Sean K. Lappan, Rachael J. Zhao, Zihao De Corte, Daniele Hulbe, Christina Ohneiser, Christian Stevens, Craig Thomson, Blair Stepanauskas, Ramunas González, José M. Logares, Ramiro Herndl, Gerhard J. Morales, Sergio E. Baltar, Federico |
author_facet |
Martínez-Pérez, Clara Greening, Chris Bay, Sean K. Lappan, Rachael J. Zhao, Zihao De Corte, Daniele Hulbe, Christina Ohneiser, Christian Stevens, Craig Thomson, Blair Stepanauskas, Ramunas González, José M. Logares, Ramiro Herndl, Gerhard J. Morales, Sergio E. Baltar, Federico |
author_sort |
Martínez-Pérez, Clara |
title |
Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf |
title_short |
Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf |
title_full |
Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf |
title_fullStr |
Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf |
title_full_unstemmed |
Phylogenetically and functionally diverse microorganisms reside under the Ross Ice Shelf |
title_sort |
phylogenetically and functionally diverse microorganisms reside under the ross ice shelf |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8748734/ http://www.ncbi.nlm.nih.gov/pubmed/35013291 https://doi.org/10.1038/s41467-021-27769-5 |
geographic |
Ross Ice Shelf |
geographic_facet |
Ross Ice Shelf |
genre |
Antarc* Antarctica Ice Shelf Ice Shelves Ross Ice Shelf |
genre_facet |
Antarc* Antarctica Ice Shelf Ice Shelves Ross Ice Shelf |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8748734/ http://www.ncbi.nlm.nih.gov/pubmed/35013291 http://dx.doi.org/10.1038/s41467-021-27769-5 |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s41467-021-27769-5 |
container_title |
Nature Communications |
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13 |
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1 |
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1766250807702847488 |