Diverse arsenic-containing lipids in the surface ocean
Arsenic is present at nanomolar levels throughout the ocean, and microbes assimilate this potentially toxic element due to its similarity to inorganic phosphorus. Although dissolved arsenic has been a focus of several oceanographic studies, the size and chemical character of the particulate arsenic...
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ftzenodo:oai:zenodo.org:5146339 2023-06-06T11:57:25+02:00 Diverse arsenic-containing lipids in the surface ocean Heal, Katherine Maloney, Ashley Ingalls, Anitra Bundy, Randelle 2021-09-30 https://zenodo.org/record/5146339 https://doi.org/10.5061/dryad.f7m0cfxw8 unknown doi:10.1101/2021.03.22.436501 https://github.com/kheal/particulate_As_data_analysis https://zenodo.org/communities/dryad https://zenodo.org/record/5146339 https://doi.org/10.5061/dryad.f7m0cfxw8 oai:zenodo.org:5146339 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Arsenic lipid Marine aresenolipid info:eu-repo/semantics/other dataset 2021 ftzenodo https://doi.org/10.5061/dryad.f7m0cfxw810.1101/2021.03.22.436501 2023-04-13T21:37:22Z Arsenic is present at nanomolar levels throughout the ocean, and microbes assimilate this potentially toxic element due to its similarity to inorganic phosphorus. Although dissolved arsenic has been a focus of several oceanographic studies, the size and chemical character of the particulate arsenic pool is poorly understood. We measured particulate arsenic in five samples from the open ocean and determined the contribution of arsenic-containing lipids to this pool. Here we show that the accumulation of arsenic into lipids is a widespread phenomenon in the surface ocean. Particulate arsenic concentrations were 15 to 42 pmol L−1 with 7–20% of the particulate arsenic pool within arsenolipids. We found that arsenosugar phospholipids dominated the arsenolipid pools in our samples with a minor component of arsenohydrocarbons and other unidentified lipids. A significant portion of the arsenosugar phospholipids (up to 35%) were present as previously undescribed mixed acyl ether lipids, suggesting a bacterial source. Funding provided by: Simons FoundationCrossref Funder Registry ID: http://dx.doi.org/10.13039/100000893Award Number: 732763, 598819, 426570 Surface samples for particulate arsenic speciation and quantification were collected from five locations noted in Table 1 (more details in Table S1). These samples include two from oligotrophic subtropical regions: one from the North Pacific (ALOHA: A Long-Term Oligotrophic Habitat Assessment) and one from the North Atlantic (BATS: Bermuda Atlantic Time Series). Three additional samples were collected from the equatorial upwelling influenced Eastern Tropical North Pacific (ETNP), including two offshore samples (ETNP-PS1 and ETNP-PS2) and one coastal sample (ETNP-PS3). We took quantitative subsamples for total particulate carbon and total particulate arsenic. We extracted samples for arsenolipids which we analyzed by liquid chromatography – inductively coupled plasma mass spectrometry (LC-ICP-MS, for quantification) and liquid chromatography – high resolution ... Dataset North Atlantic Zenodo Pacific |
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Open Polar |
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Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Arsenic lipid Marine aresenolipid |
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Arsenic lipid Marine aresenolipid Heal, Katherine Maloney, Ashley Ingalls, Anitra Bundy, Randelle Diverse arsenic-containing lipids in the surface ocean |
topic_facet |
Arsenic lipid Marine aresenolipid |
description |
Arsenic is present at nanomolar levels throughout the ocean, and microbes assimilate this potentially toxic element due to its similarity to inorganic phosphorus. Although dissolved arsenic has been a focus of several oceanographic studies, the size and chemical character of the particulate arsenic pool is poorly understood. We measured particulate arsenic in five samples from the open ocean and determined the contribution of arsenic-containing lipids to this pool. Here we show that the accumulation of arsenic into lipids is a widespread phenomenon in the surface ocean. Particulate arsenic concentrations were 15 to 42 pmol L−1 with 7–20% of the particulate arsenic pool within arsenolipids. We found that arsenosugar phospholipids dominated the arsenolipid pools in our samples with a minor component of arsenohydrocarbons and other unidentified lipids. A significant portion of the arsenosugar phospholipids (up to 35%) were present as previously undescribed mixed acyl ether lipids, suggesting a bacterial source. Funding provided by: Simons FoundationCrossref Funder Registry ID: http://dx.doi.org/10.13039/100000893Award Number: 732763, 598819, 426570 Surface samples for particulate arsenic speciation and quantification were collected from five locations noted in Table 1 (more details in Table S1). These samples include two from oligotrophic subtropical regions: one from the North Pacific (ALOHA: A Long-Term Oligotrophic Habitat Assessment) and one from the North Atlantic (BATS: Bermuda Atlantic Time Series). Three additional samples were collected from the equatorial upwelling influenced Eastern Tropical North Pacific (ETNP), including two offshore samples (ETNP-PS1 and ETNP-PS2) and one coastal sample (ETNP-PS3). We took quantitative subsamples for total particulate carbon and total particulate arsenic. We extracted samples for arsenolipids which we analyzed by liquid chromatography – inductively coupled plasma mass spectrometry (LC-ICP-MS, for quantification) and liquid chromatography – high resolution ... |
format |
Dataset |
author |
Heal, Katherine Maloney, Ashley Ingalls, Anitra Bundy, Randelle |
author_facet |
Heal, Katherine Maloney, Ashley Ingalls, Anitra Bundy, Randelle |
author_sort |
Heal, Katherine |
title |
Diverse arsenic-containing lipids in the surface ocean |
title_short |
Diverse arsenic-containing lipids in the surface ocean |
title_full |
Diverse arsenic-containing lipids in the surface ocean |
title_fullStr |
Diverse arsenic-containing lipids in the surface ocean |
title_full_unstemmed |
Diverse arsenic-containing lipids in the surface ocean |
title_sort |
diverse arsenic-containing lipids in the surface ocean |
publishDate |
2021 |
url |
https://zenodo.org/record/5146339 https://doi.org/10.5061/dryad.f7m0cfxw8 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.1101/2021.03.22.436501 https://github.com/kheal/particulate_As_data_analysis https://zenodo.org/communities/dryad https://zenodo.org/record/5146339 https://doi.org/10.5061/dryad.f7m0cfxw8 oai:zenodo.org:5146339 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.f7m0cfxw810.1101/2021.03.22.436501 |
_version_ |
1767965556979269632 |