Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System
- Autores
- Bachmann, Jennifer; Heimbach, Tabea; Hassenrück, Christiane; Kopprio, Germán Adolfo; Iversen, Morten Hvitfeldt; Grossart, Hans Peter; Gärdes, Astrid
- Año de publicación
- 2018
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Saharan dust input and seasonal upwelling along North-West Africa provide a model system for studying microbial processes related to the export and recycling of nutrients. This study offers the first molecular characterization of prokaryotic particle-attached (PA; >3.0 μm) and free-living (FL; 0.2-3.0 μm) players in this important ecosystem during August 2016. Environmental drivers for alpha-diversity, bacterial community composition, and differences between FL and PA fractions were identified. The ultra-oligotrophic waters off Senegal were dominated by Cyanobacteria while higher relative abundances of Alphaproteobacteria, Bacteroidetes, Verrucomicrobia, and Planctomycetes (known particle-degraders) occurred in the upwelling area. Temperature, proxy for different water masses, was the best predictor for changes in FL communities. PA community variation was best explained by temperature and ammonium. Bray Curtis dissimilarities between FL and PA were generally very high and correlated with temperature and salinity in surface waters. Greatest similarities between FL and PA occurred at the deep chlorophyll maximum, where bacterial substrate availability was likely highest. This indicates that environmental drivers do not only influence changes among FL and PA communities but also differences between them. This could provide an explanation for contradicting results obtained by different studies regarding the dissimilarity/similarity between FL and PA communities and their biogeochemical functions.
Fil: Bachmann, Jennifer. Universitat Bremen; Alemania. Leibniz Centre for Tropical Marine Research; Alemania
Fil: Heimbach, Tabea. Leibniz Centre for Tropical Marine Research; Alemania. Universitat Bremen; Alemania. Max Plank Institute for Marine Microbiology; Alemania
Fil: Hassenrück, Christiane. Leibniz Centre for Tropical Marine Research; Alemania
Fil: Kopprio, Germán Adolfo. Leibniz Centre for Tropical Marine Research; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina
Fil: Iversen, Morten Hvitfeldt. Universitat Bremen; Alemania. Alfred Wegener Institute for Polar and Marine Research; Alemania
Fil: Grossart, Hans Peter. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania. University of Potsdam; Alemania
Fil: Gärdes, Astrid. Leibniz Centre for Tropical Marine Research; Alemania - Materia
-
16S RRNA ILLUMINA AMPLICON SEQUENCING
ALPHA DIVERSITY
BIODIVERSITY
BRAY CURTIS DISSIMILARITY
MICROBIAL ECOLOGY
PROKARYOTES
SALINITY
TEMPERATURE - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/87854
Ver los metadatos del registro completo
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spelling |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling SystemBachmann, JenniferHeimbach, TabeaHassenrück, ChristianeKopprio, Germán AdolfoIversen, Morten HvitfeldtGrossart, Hans PeterGärdes, Astrid16S RRNA ILLUMINA AMPLICON SEQUENCINGALPHA DIVERSITYBIODIVERSITYBRAY CURTIS DISSIMILARITYMICROBIAL ECOLOGYPROKARYOTESSALINITYTEMPERATUREhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Saharan dust input and seasonal upwelling along North-West Africa provide a model system for studying microbial processes related to the export and recycling of nutrients. This study offers the first molecular characterization of prokaryotic particle-attached (PA; >3.0 μm) and free-living (FL; 0.2-3.0 μm) players in this important ecosystem during August 2016. Environmental drivers for alpha-diversity, bacterial community composition, and differences between FL and PA fractions were identified. The ultra-oligotrophic waters off Senegal were dominated by Cyanobacteria while higher relative abundances of Alphaproteobacteria, Bacteroidetes, Verrucomicrobia, and Planctomycetes (known particle-degraders) occurred in the upwelling area. Temperature, proxy for different water masses, was the best predictor for changes in FL communities. PA community variation was best explained by temperature and ammonium. Bray Curtis dissimilarities between FL and PA were generally very high and correlated with temperature and salinity in surface waters. Greatest similarities between FL and PA occurred at the deep chlorophyll maximum, where bacterial substrate availability was likely highest. This indicates that environmental drivers do not only influence changes among FL and PA communities but also differences between them. This could provide an explanation for contradicting results obtained by different studies regarding the dissimilarity/similarity between FL and PA communities and their biogeochemical functions.Fil: Bachmann, Jennifer. Universitat Bremen; Alemania. Leibniz Centre for Tropical Marine Research; AlemaniaFil: Heimbach, Tabea. Leibniz Centre for Tropical Marine Research; Alemania. Universitat Bremen; Alemania. Max Plank Institute for Marine Microbiology; AlemaniaFil: Hassenrück, Christiane. Leibniz Centre for Tropical Marine Research; AlemaniaFil: Kopprio, Germán Adolfo. Leibniz Centre for Tropical Marine Research; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; ArgentinaFil: Iversen, Morten Hvitfeldt. Universitat Bremen; Alemania. Alfred Wegener Institute for Polar and Marine Research; AlemaniaFil: Grossart, Hans Peter. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania. University of Potsdam; AlemaniaFil: Gärdes, Astrid. Leibniz Centre for Tropical Marine Research; AlemaniaFrontiers Media S.A.2018-11-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/87854Bachmann, Jennifer; Heimbach, Tabea; Hassenrück, Christiane; Kopprio, Germán Adolfo; Iversen, Morten Hvitfeldt; et al.; Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System; Frontiers Media S.A.; Frontiers in Microbiology; 9; 23-11-2018; 28361664-302XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/article/10.3389/fmicb.2018.02836/fullinfo:eu-repo/semantics/altIdentifier/doi/10.3389/fmicb.2018.02836info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:46:34Zoai:ri.conicet.gov.ar:11336/87854instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:46:35.006CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System |
title |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System |
spellingShingle |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System Bachmann, Jennifer 16S RRNA ILLUMINA AMPLICON SEQUENCING ALPHA DIVERSITY BIODIVERSITY BRAY CURTIS DISSIMILARITY MICROBIAL ECOLOGY PROKARYOTES SALINITY TEMPERATURE |
title_short |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System |
title_full |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System |
title_fullStr |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System |
title_full_unstemmed |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System |
title_sort |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System |
dc.creator.none.fl_str_mv |
Bachmann, Jennifer Heimbach, Tabea Hassenrück, Christiane Kopprio, Germán Adolfo Iversen, Morten Hvitfeldt Grossart, Hans Peter Gärdes, Astrid |
author |
Bachmann, Jennifer |
author_facet |
Bachmann, Jennifer Heimbach, Tabea Hassenrück, Christiane Kopprio, Germán Adolfo Iversen, Morten Hvitfeldt Grossart, Hans Peter Gärdes, Astrid |
author_role |
author |
author2 |
Heimbach, Tabea Hassenrück, Christiane Kopprio, Germán Adolfo Iversen, Morten Hvitfeldt Grossart, Hans Peter Gärdes, Astrid |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
16S RRNA ILLUMINA AMPLICON SEQUENCING ALPHA DIVERSITY BIODIVERSITY BRAY CURTIS DISSIMILARITY MICROBIAL ECOLOGY PROKARYOTES SALINITY TEMPERATURE |
topic |
16S RRNA ILLUMINA AMPLICON SEQUENCING ALPHA DIVERSITY BIODIVERSITY BRAY CURTIS DISSIMILARITY MICROBIAL ECOLOGY PROKARYOTES SALINITY TEMPERATURE |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Saharan dust input and seasonal upwelling along North-West Africa provide a model system for studying microbial processes related to the export and recycling of nutrients. This study offers the first molecular characterization of prokaryotic particle-attached (PA; >3.0 μm) and free-living (FL; 0.2-3.0 μm) players in this important ecosystem during August 2016. Environmental drivers for alpha-diversity, bacterial community composition, and differences between FL and PA fractions were identified. The ultra-oligotrophic waters off Senegal were dominated by Cyanobacteria while higher relative abundances of Alphaproteobacteria, Bacteroidetes, Verrucomicrobia, and Planctomycetes (known particle-degraders) occurred in the upwelling area. Temperature, proxy for different water masses, was the best predictor for changes in FL communities. PA community variation was best explained by temperature and ammonium. Bray Curtis dissimilarities between FL and PA were generally very high and correlated with temperature and salinity in surface waters. Greatest similarities between FL and PA occurred at the deep chlorophyll maximum, where bacterial substrate availability was likely highest. This indicates that environmental drivers do not only influence changes among FL and PA communities but also differences between them. This could provide an explanation for contradicting results obtained by different studies regarding the dissimilarity/similarity between FL and PA communities and their biogeochemical functions. Fil: Bachmann, Jennifer. Universitat Bremen; Alemania. Leibniz Centre for Tropical Marine Research; Alemania Fil: Heimbach, Tabea. Leibniz Centre for Tropical Marine Research; Alemania. Universitat Bremen; Alemania. Max Plank Institute for Marine Microbiology; Alemania Fil: Hassenrück, Christiane. Leibniz Centre for Tropical Marine Research; Alemania Fil: Kopprio, Germán Adolfo. Leibniz Centre for Tropical Marine Research; Alemania. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Argentino de Oceanografía. Universidad Nacional del Sur. Instituto Argentino de Oceanografía; Argentina Fil: Iversen, Morten Hvitfeldt. Universitat Bremen; Alemania. Alfred Wegener Institute for Polar and Marine Research; Alemania Fil: Grossart, Hans Peter. Leibniz-Institute of Freshwater Ecology and Inland Fisheries; Alemania. University of Potsdam; Alemania Fil: Gärdes, Astrid. Leibniz Centre for Tropical Marine Research; Alemania |
description |
Saharan dust input and seasonal upwelling along North-West Africa provide a model system for studying microbial processes related to the export and recycling of nutrients. This study offers the first molecular characterization of prokaryotic particle-attached (PA; >3.0 μm) and free-living (FL; 0.2-3.0 μm) players in this important ecosystem during August 2016. Environmental drivers for alpha-diversity, bacterial community composition, and differences between FL and PA fractions were identified. The ultra-oligotrophic waters off Senegal were dominated by Cyanobacteria while higher relative abundances of Alphaproteobacteria, Bacteroidetes, Verrucomicrobia, and Planctomycetes (known particle-degraders) occurred in the upwelling area. Temperature, proxy for different water masses, was the best predictor for changes in FL communities. PA community variation was best explained by temperature and ammonium. Bray Curtis dissimilarities between FL and PA were generally very high and correlated with temperature and salinity in surface waters. Greatest similarities between FL and PA occurred at the deep chlorophyll maximum, where bacterial substrate availability was likely highest. This indicates that environmental drivers do not only influence changes among FL and PA communities but also differences between them. This could provide an explanation for contradicting results obtained by different studies regarding the dissimilarity/similarity between FL and PA communities and their biogeochemical functions. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-11-23 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/87854 Bachmann, Jennifer; Heimbach, Tabea; Hassenrück, Christiane; Kopprio, Germán Adolfo; Iversen, Morten Hvitfeldt; et al.; Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System; Frontiers Media S.A.; Frontiers in Microbiology; 9; 23-11-2018; 2836 1664-302X CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/87854 |
identifier_str_mv |
Bachmann, Jennifer; Heimbach, Tabea; Hassenrück, Christiane; Kopprio, Germán Adolfo; Iversen, Morten Hvitfeldt; et al.; Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System; Frontiers Media S.A.; Frontiers in Microbiology; 9; 23-11-2018; 2836 1664-302X CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.frontiersin.org/article/10.3389/fmicb.2018.02836/full info:eu-repo/semantics/altIdentifier/doi/10.3389/fmicb.2018.02836 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Frontiers Media S.A. |
publisher.none.fl_str_mv |
Frontiers Media S.A. |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613454658273280 |
score |
13.070432 |