Homeostasis drives intense microbial trace metal processing on marine particles
Abstract As marine microorganisms and environmental conditions coevolved over geological timescales, metals have been incorporated into all essential metabolic processes. In the modern ocean, metals are present from trace amounts limiting microbial growth to toxic concentrations. Dissolved trace met...
Published in: | Limnology and Oceanography |
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Online Access: | http://dx.doi.org/10.1002/lno.11923 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11923 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.11923 https://aslopubs.onlinelibrary.wiley.com/doi/am-pdf/10.1002/lno.11923 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11923 |
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crwiley:10.1002/lno.11923 2024-09-15T18:10:48+00:00 Homeostasis drives intense microbial trace metal processing on marine particles Debeljak, Pavla Blain, Stéphane Bowie, Andrew van der Merwe, Pier Bayer, Barbara Obernosterer, Ingrid Australian Antarctic Division Australian Research Council Austrian Science Fund 2021 http://dx.doi.org/10.1002/lno.11923 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11923 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.11923 https://aslopubs.onlinelibrary.wiley.com/doi/am-pdf/10.1002/lno.11923 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11923 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 66, issue 10, page 3842-3855 ISSN 0024-3590 1939-5590 journal-article 2021 crwiley https://doi.org/10.1002/lno.11923 2024-08-13T04:13:53Z Abstract As marine microorganisms and environmental conditions coevolved over geological timescales, metals have been incorporated into all essential metabolic processes. In the modern ocean, metals are present from trace amounts limiting microbial growth to toxic concentrations. Dissolved trace metals are a major bioavailable reservoir. However, the acquisition of metals from marine particles remains largely unexplored. Here, we combined chemical characterization and a comparative metatranscriptomics approach to investigate the availability of nine metals of biological importance on particles collected in the region of Heard Island (Indian sector of the Southern Ocean). Elemental ratios identified particulate matter as a potential source of metals for prokaryotes. The expression of genes for the uptake of metals through various mechanisms demonstrated that particles are a bioavailable reservoir. But genes involved in the control of resistance to metal toxicity, storage, sensing, and regulation were also highly expressed. Our observations suggest that homeostasis associated with a diverse prokaryotic community is the overarching mechanism that enhances the trace element processing on particles. These results provide clues that microbial activity on particles is critical in the redistribution of trace elements between different fractions and chemical forms in the ocean. Article in Journal/Newspaper Heard Island Southern Ocean Wiley Online Library Limnology and Oceanography 66 10 3842 3855 |
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English |
description |
Abstract As marine microorganisms and environmental conditions coevolved over geological timescales, metals have been incorporated into all essential metabolic processes. In the modern ocean, metals are present from trace amounts limiting microbial growth to toxic concentrations. Dissolved trace metals are a major bioavailable reservoir. However, the acquisition of metals from marine particles remains largely unexplored. Here, we combined chemical characterization and a comparative metatranscriptomics approach to investigate the availability of nine metals of biological importance on particles collected in the region of Heard Island (Indian sector of the Southern Ocean). Elemental ratios identified particulate matter as a potential source of metals for prokaryotes. The expression of genes for the uptake of metals through various mechanisms demonstrated that particles are a bioavailable reservoir. But genes involved in the control of resistance to metal toxicity, storage, sensing, and regulation were also highly expressed. Our observations suggest that homeostasis associated with a diverse prokaryotic community is the overarching mechanism that enhances the trace element processing on particles. These results provide clues that microbial activity on particles is critical in the redistribution of trace elements between different fractions and chemical forms in the ocean. |
author2 |
Australian Antarctic Division Australian Research Council Austrian Science Fund |
format |
Article in Journal/Newspaper |
author |
Debeljak, Pavla Blain, Stéphane Bowie, Andrew van der Merwe, Pier Bayer, Barbara Obernosterer, Ingrid |
spellingShingle |
Debeljak, Pavla Blain, Stéphane Bowie, Andrew van der Merwe, Pier Bayer, Barbara Obernosterer, Ingrid Homeostasis drives intense microbial trace metal processing on marine particles |
author_facet |
Debeljak, Pavla Blain, Stéphane Bowie, Andrew van der Merwe, Pier Bayer, Barbara Obernosterer, Ingrid |
author_sort |
Debeljak, Pavla |
title |
Homeostasis drives intense microbial trace metal processing on marine particles |
title_short |
Homeostasis drives intense microbial trace metal processing on marine particles |
title_full |
Homeostasis drives intense microbial trace metal processing on marine particles |
title_fullStr |
Homeostasis drives intense microbial trace metal processing on marine particles |
title_full_unstemmed |
Homeostasis drives intense microbial trace metal processing on marine particles |
title_sort |
homeostasis drives intense microbial trace metal processing on marine particles |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/lno.11923 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11923 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lno.11923 https://aslopubs.onlinelibrary.wiley.com/doi/am-pdf/10.1002/lno.11923 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lno.11923 |
genre |
Heard Island Southern Ocean |
genre_facet |
Heard Island Southern Ocean |
op_source |
Limnology and Oceanography volume 66, issue 10, page 3842-3855 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/lno.11923 |
container_title |
Limnology and Oceanography |
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66 |
container_issue |
10 |
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3842 |
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3855 |
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1810448385025507328 |