Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial community

The extent of DMSP demethylation has been hypothesized to depend on DMSP availability and bacterial sulfur demand, which might lead to niche differentiation of the demethylating bacterial community. In this study, we determined DMSP concentrations in marine snow and the ambient water over a seasonal...

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Autores: Steiner, Paul A.A., Sintes, Eva, Simó, Rafel, De Corte, Daniele, Maric-Pfannkuchen, D., Ivancic, I., Najdek, M., Herndl, G.J
Tipo de recurso: artículo
Fecha de publicación:2019
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/311613
Acceso en línea:https://sfamjournals.onlinelibrary.wiley.com/doi/pdfdirect/10.1111/1758-2229.12783
http://hdl.handle.net/10261/311613
Access Level:acceso abierto
Palabra clave:Centro Oceanográfico de Baleares
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spelling Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial communitySteiner, Paul A.A.Sintes, EvaSimó, RafelDe Corte, DanieleMaric-Pfannkuchen, D.Ivancic, I.Najdek, M.Herndl, G.JCentro Oceanográfico de BalearesCentro Oceanográfico de BalearesThe extent of DMSP demethylation has been hypothesized to depend on DMSP availability and bacterial sulfur demand, which might lead to niche differentiation of the demethylating bacterial community. In this study, we determined DMSP concentrations in marine snow and the ambient water over a seasonal cycle and linked DMSP concentrations to the abundance of bacteria harbouring the demethylation dmdA gene in the Adriatic Sea. In marine snow, DMSP concentrations were up to four times higher than in the ambient water and three times higher in marine snow in summer than in winter. The average dmdA:recA gene ratio over the sampling period was 0.40 0.24 in marine snow and 0.48 0.21 in the ambient water. However, at the subclade level, differences in the demethylating bacterial community of marine snow and the ambient water were apparent. Seasonal patterns of potentially demethylating bacteria were best visible at the oligotype level. In the ambient water, the SAR116 and the OM60/NOR5 clade were composed of oligotypes that correlated to high DMSP concentrations, while oligotypes of the Rhodospirillales correlated to low DMSP concentrations. Our results revealed a pronounced seasonal variability and spatial heterogeneity in DMSP concentrations and the associated demethylating bacterial community.SíJohn Wiley & Sons202320232019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501https://sfamjournals.onlinelibrary.wiley.com/doi/pdfdirect/10.1111/1758-2229.12783http://hdl.handle.net/10261/311613reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglésinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3116132026-05-22T06:33:51Z
dc.title.none.fl_str_mv Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial community
title Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial community
spellingShingle Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial community
Steiner, Paul A.A.
Centro Oceanográfico de Baleares
Centro Oceanográfico de Baleares
title_short Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial community
title_full Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial community
title_fullStr Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial community
title_full_unstemmed Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial community
title_sort Seasonal dynamics of the marine snow-associated and free-living demethylating bacterial community
dc.creator.none.fl_str_mv Steiner, Paul A.A.
Sintes, Eva
Simó, Rafel
De Corte, Daniele
Maric-Pfannkuchen, D.
Ivancic, I.
Najdek, M.
Herndl, G.J
author Steiner, Paul A.A.
author_facet Steiner, Paul A.A.
Sintes, Eva
Simó, Rafel
De Corte, Daniele
Maric-Pfannkuchen, D.
Ivancic, I.
Najdek, M.
Herndl, G.J
author_role author
author2 Sintes, Eva
Simó, Rafel
De Corte, Daniele
Maric-Pfannkuchen, D.
Ivancic, I.
Najdek, M.
Herndl, G.J
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Centro Oceanográfico de Baleares
Centro Oceanográfico de Baleares
topic Centro Oceanográfico de Baleares
Centro Oceanográfico de Baleares
description The extent of DMSP demethylation has been hypothesized to depend on DMSP availability and bacterial sulfur demand, which might lead to niche differentiation of the demethylating bacterial community. In this study, we determined DMSP concentrations in marine snow and the ambient water over a seasonal cycle and linked DMSP concentrations to the abundance of bacteria harbouring the demethylation dmdA gene in the Adriatic Sea. In marine snow, DMSP concentrations were up to four times higher than in the ambient water and three times higher in marine snow in summer than in winter. The average dmdA:recA gene ratio over the sampling period was 0.40 0.24 in marine snow and 0.48 0.21 in the ambient water. However, at the subclade level, differences in the demethylating bacterial community of marine snow and the ambient water were apparent. Seasonal patterns of potentially demethylating bacteria were best visible at the oligotype level. In the ambient water, the SAR116 and the OM60/NOR5 clade were composed of oligotypes that correlated to high DMSP concentrations, while oligotypes of the Rhodospirillales correlated to low DMSP concentrations. Our results revealed a pronounced seasonal variability and spatial heterogeneity in DMSP concentrations and the associated demethylating bacterial community.
publishDate 2019
dc.date.none.fl_str_mv 2019
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv https://sfamjournals.onlinelibrary.wiley.com/doi/pdfdirect/10.1111/1758-2229.12783
http://hdl.handle.net/10261/311613
url https://sfamjournals.onlinelibrary.wiley.com/doi/pdfdirect/10.1111/1758-2229.12783
http://hdl.handle.net/10261/311613
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv John Wiley & Sons
publisher.none.fl_str_mv John Wiley & Sons
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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