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Mesozooplankton taurine production and prokaryotic uptake in the northern Adriatic Sea

Dissolved free taurine, an important osmolyte in phytoplankton and metazoans, has been shown to be a significant carbon and energy source for prokaryotes in the North Atlantic throughout the water column. However, the extent of the coupling between taurine production and consumption over a seasonal...

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Autores principales: Clifford, Elisabeth L., De Corte, Daniele, Amano, Chie, Paliaga, Paolo, Ivančić, Ingrid, Ortiz, Victor, Najdek, Mirjana, Herndl, Gerhard J., Sintes, Eva
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley & Sons, Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7891661/
https://www.ncbi.nlm.nih.gov/pubmed/33664530
http://dx.doi.org/10.1002/lno.11544
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author Clifford, Elisabeth L.
De Corte, Daniele
Amano, Chie
Paliaga, Paolo
Ivančić, Ingrid
Ortiz, Victor
Najdek, Mirjana
Herndl, Gerhard J.
Sintes, Eva
author_facet Clifford, Elisabeth L.
De Corte, Daniele
Amano, Chie
Paliaga, Paolo
Ivančić, Ingrid
Ortiz, Victor
Najdek, Mirjana
Herndl, Gerhard J.
Sintes, Eva
author_sort Clifford, Elisabeth L.
collection PubMed
description Dissolved free taurine, an important osmolyte in phytoplankton and metazoans, has been shown to be a significant carbon and energy source for prokaryotes in the North Atlantic throughout the water column. However, the extent of the coupling between taurine production and consumption over a seasonal cycle has not been examined yet. We determined taurine production by abundant crustacean zooplankton and its role as a carbon and energy source for several prokaryotic taxa in the northern Adriatic Sea over a seasonal cycle. Taurine concentrations were generally in the low nanomolar range, reaching a maximum of 22 nmol L(−1) in fall during a Pseudonitzschia bloom and coinciding with the highest zooplankton taurine release rates. Taurine accounted for up to 5% of the carbon, 11% of the nitrogen, and up to 71% of the sulfur requirements of heterotrophic prokaryotes. Members of the Roseobacter clade, Alteromonas, Thaumarchaeota, and Euryarchaeota exhibited higher cell‐specific taurine assimilation rates than SAR11 cells. However, cell‐specific taurine and leucine assimilation were highly variable in all taxa, suggesting species and/or ecotype specific utilization patterns of taurine and dissolved free amino acids. Copepods were able to cover the bulk taurine requirements of the prokaryotic communities in fall and winter and partly in the spring–summer period. Overall, our study emphasizes the significance of taurine as a carbon and energy source for the prokaryotic community in the northern Adriatic Sea and the importance of crustacean zooplankton as a significant source of taurine and other organic compounds for the heterotrophic prokaryotic community.
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spelling pubmed-78916612021-03-02 Mesozooplankton taurine production and prokaryotic uptake in the northern Adriatic Sea Clifford, Elisabeth L. De Corte, Daniele Amano, Chie Paliaga, Paolo Ivančić, Ingrid Ortiz, Victor Najdek, Mirjana Herndl, Gerhard J. Sintes, Eva Limnol Oceanogr Articles Dissolved free taurine, an important osmolyte in phytoplankton and metazoans, has been shown to be a significant carbon and energy source for prokaryotes in the North Atlantic throughout the water column. However, the extent of the coupling between taurine production and consumption over a seasonal cycle has not been examined yet. We determined taurine production by abundant crustacean zooplankton and its role as a carbon and energy source for several prokaryotic taxa in the northern Adriatic Sea over a seasonal cycle. Taurine concentrations were generally in the low nanomolar range, reaching a maximum of 22 nmol L(−1) in fall during a Pseudonitzschia bloom and coinciding with the highest zooplankton taurine release rates. Taurine accounted for up to 5% of the carbon, 11% of the nitrogen, and up to 71% of the sulfur requirements of heterotrophic prokaryotes. Members of the Roseobacter clade, Alteromonas, Thaumarchaeota, and Euryarchaeota exhibited higher cell‐specific taurine assimilation rates than SAR11 cells. However, cell‐specific taurine and leucine assimilation were highly variable in all taxa, suggesting species and/or ecotype specific utilization patterns of taurine and dissolved free amino acids. Copepods were able to cover the bulk taurine requirements of the prokaryotic communities in fall and winter and partly in the spring–summer period. Overall, our study emphasizes the significance of taurine as a carbon and energy source for the prokaryotic community in the northern Adriatic Sea and the importance of crustacean zooplankton as a significant source of taurine and other organic compounds for the heterotrophic prokaryotic community. John Wiley & Sons, Inc. 2020-06-25 2020-11 /pmc/articles/PMC7891661/ /pubmed/33664530 http://dx.doi.org/10.1002/lno.11544 Text en © 2020 The Authors. Limnology and Oceanography published by Wiley Periodicals LLC. on behalf of Association for the Sciences of Limnology and Oceanography. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Articles
Clifford, Elisabeth L.
De Corte, Daniele
Amano, Chie
Paliaga, Paolo
Ivančić, Ingrid
Ortiz, Victor
Najdek, Mirjana
Herndl, Gerhard J.
Sintes, Eva
Mesozooplankton taurine production and prokaryotic uptake in the northern Adriatic Sea
title Mesozooplankton taurine production and prokaryotic uptake in the northern Adriatic Sea
title_full Mesozooplankton taurine production and prokaryotic uptake in the northern Adriatic Sea
title_fullStr Mesozooplankton taurine production and prokaryotic uptake in the northern Adriatic Sea
title_full_unstemmed Mesozooplankton taurine production and prokaryotic uptake in the northern Adriatic Sea
title_short Mesozooplankton taurine production and prokaryotic uptake in the northern Adriatic Sea
title_sort mesozooplankton taurine production and prokaryotic uptake in the northern adriatic sea
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7891661/
https://www.ncbi.nlm.nih.gov/pubmed/33664530
http://dx.doi.org/10.1002/lno.11544
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