Diurnal variability in alkaline phosphatase activity and the potential role of zooplankton
Abstract Daily light–dark cycles drive the circadian rhythm of many ocean processes including photosynthesis, gene expression, and zooplankton diel vertical migration (DVM). In phosphate deplete surface ocean regions, microbes produce metalloenzymes, such as alkaline phosphatases (AP), to access dis...
Published in: | Limnology and Oceanography Letters |
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Online Access: | http://dx.doi.org/10.1002/lol2.10104 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flol2.10104 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10104 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lol2.10104 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10104 |
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crwiley:10.1002/lol2.10104 2024-06-02T08:11:21+00:00 Diurnal variability in alkaline phosphatase activity and the potential role of zooplankton Davis, C. Lohan, M. C. Tuerena, R. Cerdan‐Garcia, E. Woodward, E. M. S. Tagliabue, A. Mahaffey, C. Natural Environment Research Council 2019 http://dx.doi.org/10.1002/lol2.10104 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flol2.10104 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10104 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lol2.10104 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10104 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Limnology and Oceanography Letters volume 4, issue 3, page 71-78 ISSN 2378-2242 2378-2242 journal-article 2019 crwiley https://doi.org/10.1002/lol2.10104 2024-05-03T11:27:23Z Abstract Daily light–dark cycles drive the circadian rhythm of many ocean processes including photosynthesis, gene expression, and zooplankton diel vertical migration (DVM). In phosphate deplete surface ocean regions, microbes produce metalloenzymes, such as alkaline phosphatases (AP), to access dissolved organic phosphorus. Here, we provide novel evidence of diurnal variation in AP activity (APA) in the subtropical North Atlantic using two independent datasets, with APA being two‐ to three‐fold higher at night. We demonstrate that zooplankton are a source of AP and postulate that zooplankton DVM is a source of enhanced AP in the surface waters at night, with reduction or degradation of AP during the day. Our results challenge the current assumption that APA is linear over a 24‐h period. While future ocean scenarios predict intensification and expansion of oceanic phosphate limitation, our findings indicate a role for zooplankton in regenerating phosphate that is currently missing in conceptual and numerical models. Article in Journal/Newspaper North Atlantic Wiley Online Library Limnology and Oceanography Letters 4 3 71 78 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Daily light–dark cycles drive the circadian rhythm of many ocean processes including photosynthesis, gene expression, and zooplankton diel vertical migration (DVM). In phosphate deplete surface ocean regions, microbes produce metalloenzymes, such as alkaline phosphatases (AP), to access dissolved organic phosphorus. Here, we provide novel evidence of diurnal variation in AP activity (APA) in the subtropical North Atlantic using two independent datasets, with APA being two‐ to three‐fold higher at night. We demonstrate that zooplankton are a source of AP and postulate that zooplankton DVM is a source of enhanced AP in the surface waters at night, with reduction or degradation of AP during the day. Our results challenge the current assumption that APA is linear over a 24‐h period. While future ocean scenarios predict intensification and expansion of oceanic phosphate limitation, our findings indicate a role for zooplankton in regenerating phosphate that is currently missing in conceptual and numerical models. |
author2 |
Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Davis, C. Lohan, M. C. Tuerena, R. Cerdan‐Garcia, E. Woodward, E. M. S. Tagliabue, A. Mahaffey, C. |
spellingShingle |
Davis, C. Lohan, M. C. Tuerena, R. Cerdan‐Garcia, E. Woodward, E. M. S. Tagliabue, A. Mahaffey, C. Diurnal variability in alkaline phosphatase activity and the potential role of zooplankton |
author_facet |
Davis, C. Lohan, M. C. Tuerena, R. Cerdan‐Garcia, E. Woodward, E. M. S. Tagliabue, A. Mahaffey, C. |
author_sort |
Davis, C. |
title |
Diurnal variability in alkaline phosphatase activity and the potential role of zooplankton |
title_short |
Diurnal variability in alkaline phosphatase activity and the potential role of zooplankton |
title_full |
Diurnal variability in alkaline phosphatase activity and the potential role of zooplankton |
title_fullStr |
Diurnal variability in alkaline phosphatase activity and the potential role of zooplankton |
title_full_unstemmed |
Diurnal variability in alkaline phosphatase activity and the potential role of zooplankton |
title_sort |
diurnal variability in alkaline phosphatase activity and the potential role of zooplankton |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1002/lol2.10104 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Flol2.10104 https://onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10104 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/lol2.10104 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.1002/lol2.10104 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Limnology and Oceanography Letters volume 4, issue 3, page 71-78 ISSN 2378-2242 2378-2242 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/lol2.10104 |
container_title |
Limnology and Oceanography Letters |
container_volume |
4 |
container_issue |
3 |
container_start_page |
71 |
op_container_end_page |
78 |
_version_ |
1800757464157650944 |