Phosphate limitation intensifies negative effects of ocean acidification on globally important nitrogen fixing cyanobacterium
Growth of the prominent nitrogen-fixing cyanobacterium Trichodesmium is often limited by phosphorus availability in the ocean. How nitrogen fixation by phosphorus-limited Trichodesmium may respond to ocean acidification remains poorly understood. Here, we use phosphate-limited chemostat experiments...
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ftpubmed:oai:pubmedcentral.nih.gov:9640675 2023-05-15T17:50:09+02:00 Phosphate limitation intensifies negative effects of ocean acidification on globally important nitrogen fixing cyanobacterium Zhang, Futing Wen, Zuozhu Wang, Shanlin Tang, Weiyi Luo, Ya-Wei Kranz, Sven A. Hong, Haizheng Shi, Dalin 2022-11-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9640675/ http://www.ncbi.nlm.nih.gov/pubmed/36344528 https://doi.org/10.1038/s41467-022-34586-x en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9640675/ http://www.ncbi.nlm.nih.gov/pubmed/36344528 http://dx.doi.org/10.1038/s41467-022-34586-x © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Nat Commun Article Text 2022 ftpubmed https://doi.org/10.1038/s41467-022-34586-x 2022-11-20T01:55:54Z Growth of the prominent nitrogen-fixing cyanobacterium Trichodesmium is often limited by phosphorus availability in the ocean. How nitrogen fixation by phosphorus-limited Trichodesmium may respond to ocean acidification remains poorly understood. Here, we use phosphate-limited chemostat experiments to show that acidification enhanced phosphorus demands and decreased phosphorus-specific nitrogen fixation rates in Trichodesmium. The increased phosphorus requirements were attributed primarily to elevated cellular polyphosphate contents, likely for maintaining cytosolic pH homeostasis in response to acidification. Alongside the accumulation of polyphosphate, decreased NADP(H):NAD(H) ratios and impaired chlorophyll synthesis and energy production were observed under acidified conditions. Consequently, the negative effects of acidification were amplified compared to those demonstrated previously under phosphorus sufficiency. Estimating the potential implications of this finding, using outputs from the Community Earth System Model, predicts that acidification and dissolved inorganic and organic phosphorus stress could synergistically cause an appreciable decrease in global Trichodesmium nitrogen fixation by 2100. Text Ocean acidification PubMed Central (PMC) Nature Communications 13 1 |
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Article Zhang, Futing Wen, Zuozhu Wang, Shanlin Tang, Weiyi Luo, Ya-Wei Kranz, Sven A. Hong, Haizheng Shi, Dalin Phosphate limitation intensifies negative effects of ocean acidification on globally important nitrogen fixing cyanobacterium |
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Growth of the prominent nitrogen-fixing cyanobacterium Trichodesmium is often limited by phosphorus availability in the ocean. How nitrogen fixation by phosphorus-limited Trichodesmium may respond to ocean acidification remains poorly understood. Here, we use phosphate-limited chemostat experiments to show that acidification enhanced phosphorus demands and decreased phosphorus-specific nitrogen fixation rates in Trichodesmium. The increased phosphorus requirements were attributed primarily to elevated cellular polyphosphate contents, likely for maintaining cytosolic pH homeostasis in response to acidification. Alongside the accumulation of polyphosphate, decreased NADP(H):NAD(H) ratios and impaired chlorophyll synthesis and energy production were observed under acidified conditions. Consequently, the negative effects of acidification were amplified compared to those demonstrated previously under phosphorus sufficiency. Estimating the potential implications of this finding, using outputs from the Community Earth System Model, predicts that acidification and dissolved inorganic and organic phosphorus stress could synergistically cause an appreciable decrease in global Trichodesmium nitrogen fixation by 2100. |
format |
Text |
author |
Zhang, Futing Wen, Zuozhu Wang, Shanlin Tang, Weiyi Luo, Ya-Wei Kranz, Sven A. Hong, Haizheng Shi, Dalin |
author_facet |
Zhang, Futing Wen, Zuozhu Wang, Shanlin Tang, Weiyi Luo, Ya-Wei Kranz, Sven A. Hong, Haizheng Shi, Dalin |
author_sort |
Zhang, Futing |
title |
Phosphate limitation intensifies negative effects of ocean acidification on globally important nitrogen fixing cyanobacterium |
title_short |
Phosphate limitation intensifies negative effects of ocean acidification on globally important nitrogen fixing cyanobacterium |
title_full |
Phosphate limitation intensifies negative effects of ocean acidification on globally important nitrogen fixing cyanobacterium |
title_fullStr |
Phosphate limitation intensifies negative effects of ocean acidification on globally important nitrogen fixing cyanobacterium |
title_full_unstemmed |
Phosphate limitation intensifies negative effects of ocean acidification on globally important nitrogen fixing cyanobacterium |
title_sort |
phosphate limitation intensifies negative effects of ocean acidification on globally important nitrogen fixing cyanobacterium |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9640675/ http://www.ncbi.nlm.nih.gov/pubmed/36344528 https://doi.org/10.1038/s41467-022-34586-x |
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Ocean acidification |
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Ocean acidification |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9640675/ http://www.ncbi.nlm.nih.gov/pubmed/36344528 http://dx.doi.org/10.1038/s41467-022-34586-x |
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© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/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/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
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https://doi.org/10.1038/s41467-022-34586-x |
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Nature Communications |
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13 |
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