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Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario
Phytoplankton can accumulate polyphosphate (polyP) to alleviate limitation of essential nutrient phosphorus (P). Yet polyP metabolisms in aquatic systems and their roles in P biogeochemical cycle remain elusive. Previously reported polyP enrichment in low-phosphorus oligotrophic marine waters contra...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6925121/ https://www.ncbi.nlm.nih.gov/pubmed/31862973 http://dx.doi.org/10.1038/s41598-019-56042-5 |
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author | Li, Jiying Plouchart, Diane Zastepa, Arthur Dittrich, Maria |
author_facet | Li, Jiying Plouchart, Diane Zastepa, Arthur Dittrich, Maria |
author_sort | Li, Jiying |
collection | PubMed |
description | Phytoplankton can accumulate polyphosphate (polyP) to alleviate limitation of essential nutrient phosphorus (P). Yet polyP metabolisms in aquatic systems and their roles in P biogeochemical cycle remain elusive. Previously reported polyP enrichment in low-phosphorus oligotrophic marine waters contradicts the common view of polyP as a luxury P-storage molecule. Here, we show that in a P-rich eutrophic bay of Lake Ontario, planktonic polyP is controlled by multiple mechanisms and responds strongly to seasonal variations. Plankton accumulate polyP as P storage under high-P conditions via luxury uptake and use it under acute P stress. Low phosphorus also triggers enrichment of polyP that can be preferentially recycled to attenuate P lost. We discover that picoplankton, despite their low production rates, are responsible for the dynamic polyP metabolisms. Picoplankton store and liberate polyP to support the high primary productivity of blooming algae. PolyP mechanisms enable efficient P recycling on ecosystem and even larger scales. |
format | Online Article Text |
id | pubmed-6925121 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-69251212019-12-23 Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario Li, Jiying Plouchart, Diane Zastepa, Arthur Dittrich, Maria Sci Rep Article Phytoplankton can accumulate polyphosphate (polyP) to alleviate limitation of essential nutrient phosphorus (P). Yet polyP metabolisms in aquatic systems and their roles in P biogeochemical cycle remain elusive. Previously reported polyP enrichment in low-phosphorus oligotrophic marine waters contradicts the common view of polyP as a luxury P-storage molecule. Here, we show that in a P-rich eutrophic bay of Lake Ontario, planktonic polyP is controlled by multiple mechanisms and responds strongly to seasonal variations. Plankton accumulate polyP as P storage under high-P conditions via luxury uptake and use it under acute P stress. Low phosphorus also triggers enrichment of polyP that can be preferentially recycled to attenuate P lost. We discover that picoplankton, despite their low production rates, are responsible for the dynamic polyP metabolisms. Picoplankton store and liberate polyP to support the high primary productivity of blooming algae. PolyP mechanisms enable efficient P recycling on ecosystem and even larger scales. Nature Publishing Group UK 2019-12-20 /pmc/articles/PMC6925121/ /pubmed/31862973 http://dx.doi.org/10.1038/s41598-019-56042-5 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. |
spellingShingle | Article Li, Jiying Plouchart, Diane Zastepa, Arthur Dittrich, Maria Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario |
title | Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario |
title_full | Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario |
title_fullStr | Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario |
title_full_unstemmed | Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario |
title_short | Picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal Lake Ontario |
title_sort | picoplankton accumulate and recycle polyphosphate to support high primary productivity in coastal lake ontario |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6925121/ https://www.ncbi.nlm.nih.gov/pubmed/31862973 http://dx.doi.org/10.1038/s41598-019-56042-5 |
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