Specific Effect of Trace Metals on Marine Heterotrophic Microbial Activity and Diversity: Key Role of Iron and Zinc and Hydrocarbon-Degrading Bacteria
Marine microbes are an important control on the biogeochemical cycling of trace metals, but simultaneously, these metals can control the growth of microorganisms and the cycling of major nutrients like C and N. However, studies on the response/limitation of microorganisms to trace metals have tradit...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-12-01
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| Series: | Frontiers in Microbiology |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fmicb.2018.03190/full |
| _version_ | 1828733590230269952 |
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| author | Federico Baltar Federico Baltar Federico Baltar Andrés Gutiérrez-Rodríguez Moana Meyer Moana Meyer Isadora Skudelny Isadora Skudelny Sylvia Sander Sylvia Sander Blair Thomson Blair Thomson Scott Nodder Rob Middag Sergio E. Morales |
| author_facet | Federico Baltar Federico Baltar Federico Baltar Andrés Gutiérrez-Rodríguez Moana Meyer Moana Meyer Isadora Skudelny Isadora Skudelny Sylvia Sander Sylvia Sander Blair Thomson Blair Thomson Scott Nodder Rob Middag Sergio E. Morales |
| author_sort | Federico Baltar |
| collection | DOAJ |
| description | Marine microbes are an important control on the biogeochemical cycling of trace metals, but simultaneously, these metals can control the growth of microorganisms and the cycling of major nutrients like C and N. However, studies on the response/limitation of microorganisms to trace metals have traditionally focused on the response of autotrophic phytoplankton to Fe fertilization. Few reports are available on the response of heterotrophic prokaryotes to Fe, and even less to other biogeochemically relevant metals. We performed the first study coupling dark incubations with next generation sequencing to specifically target the functional and phylogenetic response of heterotrophic prokaryotes to Fe enrichment. Furthermore, we also studied their response to Co, Mn, Ni, Zn, Cu (individually and mixed), using surface and deep samples from either coastal or open-ocean waters. Heterotrophic prokaryotic activity was stimulated by Fe in surface open–ocean, as well as in coastal, and deep open-ocean waters (where Zn also stimulated). The most susceptible populations to trace metals additions were uncultured bacteria (e.g., SAR324, SAR406, NS9, and DEV007). Interestingly, hydrocarbon-degrading bacteria (e.g., Thalassolituus, Marinobacter, and Oleibacter) benefited the most from metal addition across all waters (regions/depths) revealing a predominant role in the cycling of metals and organic matter in the ocean. |
| first_indexed | 2024-04-12T22:32:24Z |
| format | Article |
| id | doaj.art-0ebe99e72837448093640adc57c7fc40 |
| institution | Directory Open Access Journal |
| issn | 1664-302X |
| language | English |
| last_indexed | 2024-04-12T22:32:24Z |
| publishDate | 2018-12-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Microbiology |
| spelling | doaj.art-0ebe99e72837448093640adc57c7fc402022-12-22T03:13:56ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2018-12-01910.3389/fmicb.2018.03190420958Specific Effect of Trace Metals on Marine Heterotrophic Microbial Activity and Diversity: Key Role of Iron and Zinc and Hydrocarbon-Degrading BacteriaFederico Baltar0Federico Baltar1Federico Baltar2Andrés Gutiérrez-Rodríguez3Moana Meyer4Moana Meyer5Isadora Skudelny6Isadora Skudelny7Sylvia Sander8Sylvia Sander9Blair Thomson10Blair Thomson11Scott Nodder12Rob Middag13Sergio E. Morales14Department of Limnology and Bio-Oceanography, Center of Functional Ecology, University of Vienna, Vienna, AustriaDepartment of Marine Science, University of Otago, Dunedin, New ZealandNational Institute of Water and Atmospheric Research (NIWA)/University of Otago Research Centre for Oceanography, University of Otago, Dunedin, New ZealandNational Institute of Water and Atmospheric Research, Wellington, New ZealandDepartment of Limnology and Bio-Oceanography, Center of Functional Ecology, University of Vienna, Vienna, AustriaDepartment of Marine Science, University of Otago, Dunedin, New ZealandDepartment of Limnology and Bio-Oceanography, Center of Functional Ecology, University of Vienna, Vienna, AustriaDepartment of Marine Science, University of Otago, Dunedin, New ZealandNational Institute of Water and Atmospheric Research (NIWA)/University of Otago Research Centre for Oceanography, University of Otago, Dunedin, New ZealandEnvironment Laboratories, Department of Nuclear Sciences and Applications, International Atomic Energy Agency (IAEA), Monaco, MonacoDepartment of Limnology and Bio-Oceanography, Center of Functional Ecology, University of Vienna, Vienna, AustriaDepartment of Marine Science, University of Otago, Dunedin, New ZealandNational Institute of Water and Atmospheric Research, Wellington, New ZealandDepartment of Ocean Systems, Royal Netherlands Institute for Sea Research, Yerseke, NetherlandsDepartment of Microbiology and Immunology, Otago School of Biomedical Sciences, University of Otago, Dunedin, New ZealandMarine microbes are an important control on the biogeochemical cycling of trace metals, but simultaneously, these metals can control the growth of microorganisms and the cycling of major nutrients like C and N. However, studies on the response/limitation of microorganisms to trace metals have traditionally focused on the response of autotrophic phytoplankton to Fe fertilization. Few reports are available on the response of heterotrophic prokaryotes to Fe, and even less to other biogeochemically relevant metals. We performed the first study coupling dark incubations with next generation sequencing to specifically target the functional and phylogenetic response of heterotrophic prokaryotes to Fe enrichment. Furthermore, we also studied their response to Co, Mn, Ni, Zn, Cu (individually and mixed), using surface and deep samples from either coastal or open-ocean waters. Heterotrophic prokaryotic activity was stimulated by Fe in surface open–ocean, as well as in coastal, and deep open-ocean waters (where Zn also stimulated). The most susceptible populations to trace metals additions were uncultured bacteria (e.g., SAR324, SAR406, NS9, and DEV007). Interestingly, hydrocarbon-degrading bacteria (e.g., Thalassolituus, Marinobacter, and Oleibacter) benefited the most from metal addition across all waters (regions/depths) revealing a predominant role in the cycling of metals and organic matter in the ocean.https://www.frontiersin.org/article/10.3389/fmicb.2018.03190/fullheterotrophic bacterioplanktontrace metalsironhydrocarbon-degrading bacteriabacterioplankton diversity |
| spellingShingle | Federico Baltar Federico Baltar Federico Baltar Andrés Gutiérrez-Rodríguez Moana Meyer Moana Meyer Isadora Skudelny Isadora Skudelny Sylvia Sander Sylvia Sander Blair Thomson Blair Thomson Scott Nodder Rob Middag Sergio E. Morales Specific Effect of Trace Metals on Marine Heterotrophic Microbial Activity and Diversity: Key Role of Iron and Zinc and Hydrocarbon-Degrading Bacteria Frontiers in Microbiology heterotrophic bacterioplankton trace metals iron hydrocarbon-degrading bacteria bacterioplankton diversity |
| title | Specific Effect of Trace Metals on Marine Heterotrophic Microbial Activity and Diversity: Key Role of Iron and Zinc and Hydrocarbon-Degrading Bacteria |
| title_full | Specific Effect of Trace Metals on Marine Heterotrophic Microbial Activity and Diversity: Key Role of Iron and Zinc and Hydrocarbon-Degrading Bacteria |
| title_fullStr | Specific Effect of Trace Metals on Marine Heterotrophic Microbial Activity and Diversity: Key Role of Iron and Zinc and Hydrocarbon-Degrading Bacteria |
| title_full_unstemmed | Specific Effect of Trace Metals on Marine Heterotrophic Microbial Activity and Diversity: Key Role of Iron and Zinc and Hydrocarbon-Degrading Bacteria |
| title_short | Specific Effect of Trace Metals on Marine Heterotrophic Microbial Activity and Diversity: Key Role of Iron and Zinc and Hydrocarbon-Degrading Bacteria |
| title_sort | specific effect of trace metals on marine heterotrophic microbial activity and diversity key role of iron and zinc and hydrocarbon degrading bacteria |
| topic | heterotrophic bacterioplankton trace metals iron hydrocarbon-degrading bacteria bacterioplankton diversity |
| url | https://www.frontiersin.org/article/10.3389/fmicb.2018.03190/full |
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