Potential Phosphorus Uptake Mechanisms in the Deep Sedimentary Biosphere
Our understanding of phosphorus (P) dynamics in the deep subseafloor environment remains limited. Here we investigate potential microbial P uptake mechanisms in oligotrophic marine sediments beneath the North Atlantic Gyre and their effects on the relative distribution of organic P compounds as a fu...
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crfrontiers:10.3389/fmars.2022.907527 2024-02-11T10:06:27+01:00 Potential Phosphorus Uptake Mechanisms in the Deep Sedimentary Biosphere Defforey, Delphine Tully, Benjamin J. Sylvan, Jason B. Cade-Menun, Barbara J. Kiel Reese, Brandi Zinke, Laura Paytan, Adina 2022 http://dx.doi.org/10.3389/fmars.2022.907527 https://www.frontiersin.org/articles/10.3389/fmars.2022.907527/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 9 ISSN 2296-7745 Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography journal-article 2022 crfrontiers https://doi.org/10.3389/fmars.2022.907527 2024-01-26T10:02:06Z Our understanding of phosphorus (P) dynamics in the deep subseafloor environment remains limited. Here we investigate potential microbial P uptake mechanisms in oligotrophic marine sediments beneath the North Atlantic Gyre and their effects on the relative distribution of organic P compounds as a function of burial depth and changing redox conditions. We use metagenomic analyses to determine the presence of microbial functional genes pertaining to P uptake and metabolism, and solution 31 P nuclear magnetic resonance spectroscopy ( 31 P NMR) to characterize and quantify P substrates. Phosphorus compounds or compound classes identified with 31 P NMR include inorganic P compounds (orthophosphate, pyrophosphate, polyphosphate), phosphonates, orthophosphate monoesters (including inositol hexakisphosphate stereoisomers) and orthophosphate diesters (including DNA and phospholipid degradation products). Some of the genes identified include genes related to phosphate transport, phosphonate and polyphosphate metabolism, as well as phosphite uptake. Our findings suggest that the deep sedimentary biosphere may have adapted to take advantage of a wide array of P substrates and could play a role in the gradual breakdown of inositol and sugar phosphates, as well as reduced P compounds and polyphosphates. Article in Journal/Newspaper North Atlantic Frontiers (Publisher) Frontiers in Marine Science 9 |
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topic |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
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Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography Defforey, Delphine Tully, Benjamin J. Sylvan, Jason B. Cade-Menun, Barbara J. Kiel Reese, Brandi Zinke, Laura Paytan, Adina Potential Phosphorus Uptake Mechanisms in the Deep Sedimentary Biosphere |
topic_facet |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
description |
Our understanding of phosphorus (P) dynamics in the deep subseafloor environment remains limited. Here we investigate potential microbial P uptake mechanisms in oligotrophic marine sediments beneath the North Atlantic Gyre and their effects on the relative distribution of organic P compounds as a function of burial depth and changing redox conditions. We use metagenomic analyses to determine the presence of microbial functional genes pertaining to P uptake and metabolism, and solution 31 P nuclear magnetic resonance spectroscopy ( 31 P NMR) to characterize and quantify P substrates. Phosphorus compounds or compound classes identified with 31 P NMR include inorganic P compounds (orthophosphate, pyrophosphate, polyphosphate), phosphonates, orthophosphate monoesters (including inositol hexakisphosphate stereoisomers) and orthophosphate diesters (including DNA and phospholipid degradation products). Some of the genes identified include genes related to phosphate transport, phosphonate and polyphosphate metabolism, as well as phosphite uptake. Our findings suggest that the deep sedimentary biosphere may have adapted to take advantage of a wide array of P substrates and could play a role in the gradual breakdown of inositol and sugar phosphates, as well as reduced P compounds and polyphosphates. |
format |
Article in Journal/Newspaper |
author |
Defforey, Delphine Tully, Benjamin J. Sylvan, Jason B. Cade-Menun, Barbara J. Kiel Reese, Brandi Zinke, Laura Paytan, Adina |
author_facet |
Defforey, Delphine Tully, Benjamin J. Sylvan, Jason B. Cade-Menun, Barbara J. Kiel Reese, Brandi Zinke, Laura Paytan, Adina |
author_sort |
Defforey, Delphine |
title |
Potential Phosphorus Uptake Mechanisms in the Deep Sedimentary Biosphere |
title_short |
Potential Phosphorus Uptake Mechanisms in the Deep Sedimentary Biosphere |
title_full |
Potential Phosphorus Uptake Mechanisms in the Deep Sedimentary Biosphere |
title_fullStr |
Potential Phosphorus Uptake Mechanisms in the Deep Sedimentary Biosphere |
title_full_unstemmed |
Potential Phosphorus Uptake Mechanisms in the Deep Sedimentary Biosphere |
title_sort |
potential phosphorus uptake mechanisms in the deep sedimentary biosphere |
publisher |
Frontiers Media SA |
publishDate |
2022 |
url |
http://dx.doi.org/10.3389/fmars.2022.907527 https://www.frontiersin.org/articles/10.3389/fmars.2022.907527/full |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Frontiers in Marine Science volume 9 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2022.907527 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
_version_ |
1790604194419310592 |