Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic
In certain regions of the predominantly nitrogen limited ocean, microbes can become co-limited by phosphorus. Within such regions, a proportion of the dissolved organic phosphorus pool can be accessed by microbes employing a variety of alkaline phosphatase (APase) enzymes. In contrast to the PhoA fa...
Published in: | Nature Communications |
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Nature Research
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Online Access: | https://oceanrep.geomar.de/id/eprint/38209/ https://oceanrep.geomar.de/id/eprint/38209/1/ncomms15465.pdf https://oceanrep.geomar.de/id/eprint/38209/2/ncomms15465-s1.pdf https://doi.org/10.1038/ncomms15465 |
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ftoceanrep:oai:oceanrep.geomar.de:38209 2023-05-15T17:29:07+02:00 Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic Browning, Thomas Achterberg, Eric P. Yong, Jaw Chuen Rapp, Insa Utermann, Caroline Engel, Anja Moore, C. M. 2017-05-19 text https://oceanrep.geomar.de/id/eprint/38209/ https://oceanrep.geomar.de/id/eprint/38209/1/ncomms15465.pdf https://oceanrep.geomar.de/id/eprint/38209/2/ncomms15465-s1.pdf https://doi.org/10.1038/ncomms15465 en eng Nature Research https://oceanrep.geomar.de/id/eprint/38209/1/ncomms15465.pdf https://oceanrep.geomar.de/id/eprint/38209/2/ncomms15465-s1.pdf Browning, T. , Achterberg, E. P. , Yong, J. C., Rapp, I., Utermann, C., Engel, A. and Moore, C. M. (2017) Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic. Open Access Nature Communications, 8 (15465). DOI 10.1038/ncomms15465 <https://doi.org/10.1038/ncomms15465>. doi:10.1038/ncomms15465 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 2017 ftoceanrep https://doi.org/10.1038/ncomms15465 2023-04-07T15:33:38Z In certain regions of the predominantly nitrogen limited ocean, microbes can become co-limited by phosphorus. Within such regions, a proportion of the dissolved organic phosphorus pool can be accessed by microbes employing a variety of alkaline phosphatase (APase) enzymes. In contrast to the PhoA family of APases that utilize zinc as a cofactor, the recent discovery of iron as a cofactor in the more widespread PhoX and PhoD implies the potential for a biochemically dependant interplay between oceanic zinc, iron and phosphorus cycles. Here we demonstrate enhanced natural community APase activity following iron amendment within the low zinc and moderately low iron Western North Atlantic. In contrast we find no evidence for trace metal limitation of APase activity beneath the Saharan dust plume in the Eastern Atlantic. Such intermittent iron limitation of microbial phosphorus acquisition provides an additional facet in the argument for iron controlling the coupling between oceanic nitrogen and phosphorus cycles. Article in Journal/Newspaper North Atlantic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Nature Communications 8 1 |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
In certain regions of the predominantly nitrogen limited ocean, microbes can become co-limited by phosphorus. Within such regions, a proportion of the dissolved organic phosphorus pool can be accessed by microbes employing a variety of alkaline phosphatase (APase) enzymes. In contrast to the PhoA family of APases that utilize zinc as a cofactor, the recent discovery of iron as a cofactor in the more widespread PhoX and PhoD implies the potential for a biochemically dependant interplay between oceanic zinc, iron and phosphorus cycles. Here we demonstrate enhanced natural community APase activity following iron amendment within the low zinc and moderately low iron Western North Atlantic. In contrast we find no evidence for trace metal limitation of APase activity beneath the Saharan dust plume in the Eastern Atlantic. Such intermittent iron limitation of microbial phosphorus acquisition provides an additional facet in the argument for iron controlling the coupling between oceanic nitrogen and phosphorus cycles. |
format |
Article in Journal/Newspaper |
author |
Browning, Thomas Achterberg, Eric P. Yong, Jaw Chuen Rapp, Insa Utermann, Caroline Engel, Anja Moore, C. M. |
spellingShingle |
Browning, Thomas Achterberg, Eric P. Yong, Jaw Chuen Rapp, Insa Utermann, Caroline Engel, Anja Moore, C. M. Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic |
author_facet |
Browning, Thomas Achterberg, Eric P. Yong, Jaw Chuen Rapp, Insa Utermann, Caroline Engel, Anja Moore, C. M. |
author_sort |
Browning, Thomas |
title |
Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic |
title_short |
Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic |
title_full |
Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic |
title_fullStr |
Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic |
title_full_unstemmed |
Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic |
title_sort |
iron limitation of microbial phosphorus acquisition in the tropical north atlantic |
publisher |
Nature Research |
publishDate |
2017 |
url |
https://oceanrep.geomar.de/id/eprint/38209/ https://oceanrep.geomar.de/id/eprint/38209/1/ncomms15465.pdf https://oceanrep.geomar.de/id/eprint/38209/2/ncomms15465-s1.pdf https://doi.org/10.1038/ncomms15465 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
https://oceanrep.geomar.de/id/eprint/38209/1/ncomms15465.pdf https://oceanrep.geomar.de/id/eprint/38209/2/ncomms15465-s1.pdf Browning, T. , Achterberg, E. P. , Yong, J. C., Rapp, I., Utermann, C., Engel, A. and Moore, C. M. (2017) Iron limitation of microbial phosphorus acquisition in the tropical North Atlantic. Open Access Nature Communications, 8 (15465). DOI 10.1038/ncomms15465 <https://doi.org/10.1038/ncomms15465>. doi:10.1038/ncomms15465 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1038/ncomms15465 |
container_title |
Nature Communications |
container_volume |
8 |
container_issue |
1 |
_version_ |
1766122728547418112 |