Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System
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....
Published in: | Frontiers in Microbiology |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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Frontiers Media S.A.
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Online Access: | http://hdl.handle.net/11336/87854 |
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CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
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language |
English |
topic |
16S RRNA ILLUMINA AMPLICON SEQUENCING ALPHA DIVERSITY BIODIVERSITY BRAY CURTIS DISSIMILARITY MICROBIAL ECOLOGY PROKARYOTES SALINITY TEMPERATURE Oceanografía Hidrología Recursos Hídricos Ciencias de la Tierra y relacionadas con el Medio Ambiente CIENCIAS NATURALES Y EXACTAS |
spellingShingle |
16S RRNA ILLUMINA AMPLICON SEQUENCING ALPHA DIVERSITY BIODIVERSITY BRAY CURTIS DISSIMILARITY MICROBIAL ECOLOGY PROKARYOTES SALINITY TEMPERATURE Oceanografía Hidrología Recursos Hídricos Ciencias de la Tierra y relacionadas con el Medio Ambiente CIENCIAS NATURALES Y EXACTAS Bachmann, Jennifer Heimbach, Tabea Hassenrück, Christiane Kopprio, Germán Adolfo Iversen, Morten Hvitfeldt Grossart, Hans Peter Gärdes, Astrid Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System |
topic_facet |
16S RRNA ILLUMINA AMPLICON SEQUENCING ALPHA DIVERSITY BIODIVERSITY BRAY CURTIS DISSIMILARITY MICROBIAL ECOLOGY PROKARYOTES SALINITY TEMPERATURE Oceanografía Hidrología Recursos Hídricos Ciencias de la Tierra y relacionadas con el Medio Ambiente CIENCIAS NATURALES Y EXACTAS |
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. 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 |
format |
Article in Journal/Newspaper |
author |
Bachmann, Jennifer Heimbach, Tabea Hassenrück, Christiane Kopprio, Germán Adolfo Iversen, Morten Hvitfeldt Grossart, Hans Peter Gärdes, Astrid |
author_facet |
Bachmann, Jennifer Heimbach, Tabea Hassenrück, Christiane Kopprio, Germán Adolfo Iversen, Morten Hvitfeldt Grossart, Hans Peter Gärdes, Astrid |
author_sort |
Bachmann, Jennifer |
title |
Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System |
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 |
publisher |
Frontiers Media S.A. |
url |
http://hdl.handle.net/11336/87854 |
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ENVELOPE(-114.067,-114.067,-74.833,-74.833) ENVELOPE(70.233,70.233,-49.350,-49.350) |
geographic |
Argentina Argentino Bray Christiane |
geographic_facet |
Argentina Argentino Bray Christiane |
genre |
Alfred Wegener Institute |
genre_facet |
Alfred Wegener Institute |
op_relation |
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 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 http://hdl.handle.net/11336/87854 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmicb.2018.02836 |
container_title |
Frontiers in Microbiology |
container_volume |
9 |
_version_ |
1766271749873205248 |
spelling |
ftconicet:oai:ri.conicet.gov.ar:11336/87854 2023-05-15T13:15:54+02:00 Environmental Drivers of Free-Living vs. Particle-Attached Bacterial Community Composition in the Mauritania Upwelling System Bachmann, Jennifer Heimbach, Tabea Hassenrück, Christiane Kopprio, Germán Adolfo Iversen, Morten Hvitfeldt Grossart, Hans Peter Gärdes, Astrid application/pdf http://hdl.handle.net/11336/87854 eng eng Frontiers Media S.A. 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 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 http://hdl.handle.net/11336/87854 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/2.5/ar/ CC-BY 16S RRNA ILLUMINA AMPLICON SEQUENCING ALPHA DIVERSITY BIODIVERSITY BRAY CURTIS DISSIMILARITY MICROBIAL ECOLOGY PROKARYOTES SALINITY TEMPERATURE Oceanografía Hidrología Recursos Hídricos Ciencias de la Tierra y relacionadas con el Medio Ambiente CIENCIAS NATURALES Y EXACTAS info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.3389/fmicb.2018.02836 2019-11-07T00:59:24Z 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 Article in Journal/Newspaper Alfred Wegener Institute CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentina Argentino Bray ENVELOPE(-114.067,-114.067,-74.833,-74.833) Christiane ENVELOPE(70.233,70.233,-49.350,-49.350) Frontiers in Microbiology 9 |