Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Sosa, O. A., Burrell, T. J., Wilson, S. T., Foreman, R. K., Karl, D. M., & Repeta, D. J. Phosphonate cycling supports methane and ethylene super...
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ftwhoas:oai:darchive.mblwhoilibrary.org:1912/25867 2023-05-15T17:28:52+02:00 Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean Sosa, Oscar A. Burrell, Timothy J. Wilson, Samuel T. Foreman, Rhea K. Karl, David M. Repeta, Daniel J. 2020-05-20 https://hdl.handle.net/1912/25867 unknown Wiley https://doi.org/10.1002/lno.11463 Sosa, O. A., Burrell, T. J., Wilson, S. T., Foreman, R. K., Karl, D. M., & Repeta, D. J. (2020). Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean. Limnology and Oceanography. https://hdl.handle.net/1912/25867 doi:10.1002/lno.11463 Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ CC-BY-NC Sosa, O. A., Burrell, T. J., Wilson, S. T., Foreman, R. K., Karl, D. M., & Repeta, D. J. (2020). Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean. Limnology and Oceanography. doi:10.1002/lno.11463 Article 2020 ftwhoas https://doi.org/10.1002/lno.11463 2022-05-28T23:03:41Z © The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Sosa, O. A., Burrell, T. J., Wilson, S. T., Foreman, R. K., Karl, D. M., & Repeta, D. J. Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean. Limnology and Oceanography, (2020), doi:10.1002/lno.11463. In oligotrophic ocean regions, dissolved organic phosphorus (DOP) plays a prominent role as a source of phosphorus (P) to microorganisms. An important bioavailable component of DOP is phosphonates, organophosphorus compounds with a carbon‐phosphorus (C‐P) bond, which are ubiquitous in high molecular weight dissolved organic matter (HMWDOM). In addition to being a source of P, the degradation of phosphonates by the bacterial C‐P lyase enzymatic pathway causes the release of trace hydrocarbon gases relevant to climate and atmospheric chemistry. In this study, we investigated the roles of phosphate and phosphonate cycling in the production of methane (CH4) and ethylene (C2H4) in the western North Atlantic Ocean, a region that features a transition in phosphate concentrations from coastal to open ocean waters. We observed an inverse relationship between phosphate and the saturation state of CH4 and C2H4 in the water column, and between phosphate and the relative abundance of the C‐P lyase marker gene phnJ . In phosphate‐depleted waters, methylphosphonate and 2‐hydroxyethylphosphonate, the C‐P lyase substrates that yield CH4 and C2H4, respectively, were readily degraded in proportions consistent with their abundance and bioavailability in HMWDOM and with the concentrations of CH4 and C2H4 in the water column. We conclude that phosphonate degradation through the C‐P lyase pathway is an important source and a common production pathway of CH4 and C2H4 in the phosphate‐depleted surface waters of the western North Atlantic Ocean and that phosphate concentration can be an important control on the ... Article in Journal/Newspaper North Atlantic Woods Hole Scientific Community: WHOAS (Woods Hole Open Access Server) Limnology and Oceanography 65 10 2443 2459 |
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© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Sosa, O. A., Burrell, T. J., Wilson, S. T., Foreman, R. K., Karl, D. M., & Repeta, D. J. Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean. Limnology and Oceanography, (2020), doi:10.1002/lno.11463. In oligotrophic ocean regions, dissolved organic phosphorus (DOP) plays a prominent role as a source of phosphorus (P) to microorganisms. An important bioavailable component of DOP is phosphonates, organophosphorus compounds with a carbon‐phosphorus (C‐P) bond, which are ubiquitous in high molecular weight dissolved organic matter (HMWDOM). In addition to being a source of P, the degradation of phosphonates by the bacterial C‐P lyase enzymatic pathway causes the release of trace hydrocarbon gases relevant to climate and atmospheric chemistry. In this study, we investigated the roles of phosphate and phosphonate cycling in the production of methane (CH4) and ethylene (C2H4) in the western North Atlantic Ocean, a region that features a transition in phosphate concentrations from coastal to open ocean waters. We observed an inverse relationship between phosphate and the saturation state of CH4 and C2H4 in the water column, and between phosphate and the relative abundance of the C‐P lyase marker gene phnJ . In phosphate‐depleted waters, methylphosphonate and 2‐hydroxyethylphosphonate, the C‐P lyase substrates that yield CH4 and C2H4, respectively, were readily degraded in proportions consistent with their abundance and bioavailability in HMWDOM and with the concentrations of CH4 and C2H4 in the water column. We conclude that phosphonate degradation through the C‐P lyase pathway is an important source and a common production pathway of CH4 and C2H4 in the phosphate‐depleted surface waters of the western North Atlantic Ocean and that phosphate concentration can be an important control on the ... |
format |
Article in Journal/Newspaper |
author |
Sosa, Oscar A. Burrell, Timothy J. Wilson, Samuel T. Foreman, Rhea K. Karl, David M. Repeta, Daniel J. |
spellingShingle |
Sosa, Oscar A. Burrell, Timothy J. Wilson, Samuel T. Foreman, Rhea K. Karl, David M. Repeta, Daniel J. Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean |
author_facet |
Sosa, Oscar A. Burrell, Timothy J. Wilson, Samuel T. Foreman, Rhea K. Karl, David M. Repeta, Daniel J. |
author_sort |
Sosa, Oscar A. |
title |
Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean |
title_short |
Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean |
title_full |
Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean |
title_fullStr |
Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean |
title_full_unstemmed |
Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean |
title_sort |
phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western north atlantic ocean |
publisher |
Wiley |
publishDate |
2020 |
url |
https://hdl.handle.net/1912/25867 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Sosa, O. A., Burrell, T. J., Wilson, S. T., Foreman, R. K., Karl, D. M., & Repeta, D. J. (2020). Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean. Limnology and Oceanography. doi:10.1002/lno.11463 |
op_relation |
https://doi.org/10.1002/lno.11463 Sosa, O. A., Burrell, T. J., Wilson, S. T., Foreman, R. K., Karl, D. M., & Repeta, D. J. (2020). Phosphonate cycling supports methane and ethylene supersaturation in the phosphate-depleted western North Atlantic Ocean. Limnology and Oceanography. https://hdl.handle.net/1912/25867 doi:10.1002/lno.11463 |
op_rights |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1002/lno.11463 |
container_title |
Limnology and Oceanography |
container_volume |
65 |
container_issue |
10 |
container_start_page |
2443 |
op_container_end_page |
2459 |
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1766121996766150656 |