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Guerra A, Azevedo A, Amorim F, Soares J, Neuparth T, Santos MM, Martins I, Colaço A. Using a food web model to predict the effects of Hazardous and Noxious Substances (HNS) accidental spills on deep-sea hydrothermal vents from the Mid-Atlantic Ridge (MAR) region. MARINE POLLUTION BULLETIN 2024; 199:115974. [PMID: 38176164 DOI: 10.1016/j.marpolbul.2023.115974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/21/2023] [Accepted: 12/21/2023] [Indexed: 01/06/2024]
Abstract
Deep-sea hydrothermal vents host unique ecosystems but face risks of incidents with Hazardous and Noxious Substances (HNS) along busy shipping lanes such as the transatlantic route. We developed an Ecopath with Ecosim (EwE) model of the Menez Gwen (MG) vent field (MG-EwE) (Mid-Atlantic Ridge) to simulate ecosystem effects of potential accidental spills of four different HNS, using a semi-Lagrangian Dispersion Model (sLDM) coupled with the Regional Ocean Modelling System (ROMS) calibrated for the study area. Food web modelling revealed a simplified trophic structure with low energy efficiency. The MG ecosystem was vulnerable to disruptions caused by all tested HNS, yet it revealed some long-term resilience. Understanding these impacts is vital for enhancing Spill Prevention, Control, and Countermeasure plans (SPCC) in remote marine areas and developing tools to assess stressors effects on these invaluable habitats.
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Affiliation(s)
- A Guerra
- IMAR Institute of Marine Research, University of the Azores, Rua Prof Frederico Machado, 9901-862 Horta, Portugal; CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Porto, Portugal.
| | - A Azevedo
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Porto, Portugal
| | - F Amorim
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Porto, Portugal
| | - J Soares
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Porto, Portugal; AIR Centre, TERINOV-Parque de Ciência e Tecnologia da Ilha Terceira, Canada de Belém S/N, Terra Chã, 9700-702 Angra do Heroísmo, Portugal
| | - T Neuparth
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Porto, Portugal
| | - M M Santos
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Porto, Portugal; FCUP, Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre s/n, 4169-007 Porto, Portugal
| | - I Martins
- CIMAR/CIIMAR, Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Porto, Portugal.
| | - A Colaço
- Institute of Marine Sciences, Okeanos, University of the Azores, Rua Prof Frederico Machado, 9901-862 Horta, Portugal
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2
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Kostešić E, Mitrović M, Kajan K, Marković T, Hausmann B, Orlić S, Pjevac P. Microbial Diversity and Activity of Biofilms from Geothermal Springs in Croatia. MICROBIAL ECOLOGY 2023; 86:2305-2319. [PMID: 37209180 PMCID: PMC10640420 DOI: 10.1007/s00248-023-02239-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 05/07/2023] [Indexed: 05/22/2023]
Abstract
Hot spring biofilms are stable, highly complex microbial structures. They form at dynamic redox and light gradients and are composed of microorganisms adapted to the extreme temperatures and fluctuating geochemical conditions of geothermal environments. In Croatia, a large number of poorly investigated geothermal springs host biofilm communities. Here, we investigated the microbial community composition of biofilms collected over several seasons at 12 geothermal springs and wells. We found biofilm microbial communities to be temporally stable and highly dominated by Cyanobacteria in all but one high-temperature sampling site (Bizovac well). Of the physiochemical parameters recorded, temperature had the strongest influence on biofilm microbial community composition. Besides Cyanobacteria, the biofilms were mainly inhabited by Chloroflexota, Gammaproteobacteria, and Bacteroidota. In a series of incubations with Cyanobacteria-dominated biofilms from Tuhelj spring and Chloroflexota- and Pseudomonadota-dominated biofilms from Bizovac well, we stimulated either chemoorganotrophic or chemolithotrophic community members, to determine the fraction of microorganisms dependent on organic carbon (in situ predominantly produced via photosynthesis) versus energy derived from geochemical redox gradients (here simulated by addition of thiosulfate). We found surprisingly similar levels of activity in response to all substrates in these two distinct biofilm communities, and observed microbial community composition and hot spring geochemistry to be poor predictors of microbial activity in the study systems.
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Affiliation(s)
- Ema Kostešić
- Division of Materials Chemistry, Ruđer Bošković Institute, Zagreb, Croatia
| | - Maja Mitrović
- Division of Materials Chemistry, Ruđer Bošković Institute, Zagreb, Croatia
| | - Katarina Kajan
- Division of Materials Chemistry, Ruđer Bošković Institute, Zagreb, Croatia
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Split, Croatia
| | | | - Bela Hausmann
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria
- Department of Laboratory Medicine, Medical University of Vienna, Vienna, Austria
| | - Sandi Orlić
- Division of Materials Chemistry, Ruđer Bošković Institute, Zagreb, Croatia
- Center of Excellence for Science and Technology-Integration of Mediterranean Region (STIM), Split, Croatia
| | - Petra Pjevac
- Joint Microbiome Facility of the Medical University of Vienna and the University of Vienna, Vienna, Austria.
- Centre for Microbiology and Environmental Systems Science, Department of Microbiology and Ecosystem Science, University of Vienna, Vienna, Austria.
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3
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DNA Enrichment Methods for Microbial Symbionts in Marine Bivalves. Microorganisms 2022; 10:microorganisms10020393. [PMID: 35208848 PMCID: PMC8878965 DOI: 10.3390/microorganisms10020393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 01/31/2022] [Accepted: 02/04/2022] [Indexed: 11/17/2022] Open
Abstract
High-throughput sequencing is a powerful tool used for bivalve symbiosis research, but the largest barrier is the contamination of host DNA. In this work, we assessed the host DNA reduction efficiency, microbial community structure, and microbial diversity of four different sample pre-treatment and DNA extraction methods employed in bivalve gill tissue samples. Metagenomic sequencing showed the average proportions of reads belonging to microorganisms retrieved using PowerSoil DNA extraction kit, pre-treatment with differential centrifugation, pre-treatment with filtration, and HostZERO Microbial DNA kit samples were 2.3 ± 0.6%, 2.5 ± 0.2%, 4.7 ± 1.6%, and 42.6 ± 6.8%, respectively. The microbial DNA was effectively enriched with HostZERO Microbial DNA kit. The microbial communities revealed by amplicon sequencing of the 16S rRNA gene showed the taxonomic biases by using four different pre-treatment and DNA extraction methods. The species diversities of DNA samples extracted with the PowerSoil DNA extraction kit were similar, while lower than DNA samples extracted with HostZERO Microbial DNA kit. The results of this study emphasized the bias of these common methods in bivalve symbionts research and will be helpful to choose a fit-for-purpose microbial enrichment strategy in future research on bivalves or other microbe–invertebrate symbioses.
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Genus-Specific Carbon Fixation Activity Measurements Reveal Distinct Responses to Oxygen Among Hydrothermal Vent Campylobacteria. Appl Environ Microbiol 2021; 88:e0208321. [PMID: 34788061 DOI: 10.1128/aem.02083-21] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Molecular surveys of low temperature deep-sea hydrothermal vent fluids have shown that Campylobacteria (prev. Epsilonproteobacteria) often dominate the microbial community and that three genera - Arcobacter, Sulfurimonas and Sulfurovum - frequently coexist. In this study, we used replicated radiocarbon incubations of deep-sea hydrothermal fluids to investigate activity of each genus under three experimental conditions. To quantify genus-specific radiocarbon incorporation, we used newly designed oligonucleotide probes for Arcobacter, Sulfurimonas, and Sulfurovum to quantify their activity using catalyzed-reporter deposition fluorescence in-situ hybridization (CARD-FISH) combined with fluorescence-activated cell sorting. All three genera actively fixed CO2 in short-term (∼ 20 h) incubations, but responded differently to the additions of nitrate and oxygen. Oxygen additions had the largest effect on community composition, and caused a pronounced shift in community composition at the amplicon sequence variant (ASV) level after only 20 h of incubation. The effect of oxygen on carbon fixation rates appeared to depend on the initial starting community. The presented results support the hypothesis that these chemoautotrophic genera possess functionally redundant core metabolic capabilities, but also reveal finer-scale differences in growth likely reflecting adaptation of physiologically-distinct phylotypes to varying oxygen concentrations in situ. Overall, our study provides new insights into how oxygen controls community composition and total chemoautotrophic activity, and underscores how quickly deep-sea vent microbial communities respond to disturbances. Importance: Sulfidic environments worldwide are often dominated by sulfur-oxidizing, carbon-fixing Campylobacteria. Environmental factors associated with this group's dominance are now understood, but far less is known about the ecology and physiology of members of subgroups of chemoautotrophic Campylobacteria. In this study, we used a novel method to differentiate the genus-specific chemoautotrophic activity of three subtypes of Campylobacteria. In combination with evidence from microscopic counts, chemical consumption/production during incubations, and DNA-based measurements, our data show that oxygen concentration affects both community composition and chemoautotrophic function in situ. These results help us better understand factors controlling microbial diversity at deep-sea hydrothermal vents, and provide first-order insights into the ecophysiological differences between these distinct microbial taxa.
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Trembath-Reichert E, Shah Walter SR, Ortiz MAF, Carter PD, Girguis PR, Huber JA. Multiple carbon incorporation strategies support microbial survival in cold subseafloor crustal fluids. SCIENCE ADVANCES 2021; 7:7/18/eabg0153. [PMID: 33910898 PMCID: PMC8081358 DOI: 10.1126/sciadv.abg0153] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Accepted: 03/09/2021] [Indexed: 05/03/2023]
Abstract
Biogeochemical processes occurring in fluids that permeate oceanic crust make measurable contributions to the marine carbon cycle, but quantitative assessments of microbial impacts on this vast, subsurface carbon pool are lacking. We provide bulk and single-cell estimates of microbial biomass production from carbon and nitrogen substrates in cool, oxic basement fluids from the western flank of the Mid-Atlantic Ridge. The wide range in carbon and nitrogen incorporation rates indicates a microbial community well poised for dynamic conditions, potentially anabolizing carbon and nitrogen at rates ranging from those observed in subsurface sediments to those found in on-axis hydrothermal vent environments. Bicarbonate incorporation rates were highest where fluids are most isolated from recharging bottom seawater, suggesting that anabolism of inorganic carbon may be a potential strategy for supplementing the ancient and recalcitrant dissolved organic carbon that is prevalent in the globally distributed subseafloor crustal environment.
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Affiliation(s)
| | - Sunita R Shah Walter
- School of Marine Science and Policy, University of Delaware, Lewes, DE 19958, USA
| | | | - Patrick D Carter
- Department of Microbiology, University of Massachusetts, Amherst, MA 01003, USA
| | - Peter R Girguis
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
- Department of Applied Ocean Engineering and Physics, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
| | - Julie A Huber
- Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
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6
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Unique Solid Phase Microextraction Sampler Reveals Distinctive Biogeochemical Profiles among Various Deep-Sea Hydrothermal Vents. Sci Rep 2020; 10:1360. [PMID: 31992838 PMCID: PMC6987176 DOI: 10.1038/s41598-020-58418-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Accepted: 12/20/2019] [Indexed: 11/08/2022] Open
Abstract
Current methods for biochemical and biogeochemical analysis of the deep-sea hydrothermal vent ecosystems rely on water sample recovery, or in situ analysis using underwater instruments with limited range of analyte detection and limited sensitivity. Even in cases where large quantities of sample are recovered, labile dissolved organic compounds may not be detected due to time delays between sampling and preservation. Here, we present a novel approach for in situ extraction of organic compounds from hydrothermal vent fluids through a unique solid phase microextraction (SPME) sampler. These samplers were deployed to sample effluent of vents on sulphide chimneys, located on Axial Seamount in the North-East Pacific, in the Urashima field on the southern Mariana back-arc, and at the Hafa Adai site in the central Mariana back-arc. Among the compounds that were extracted, a wide range of unique organic compounds, including labile dissolved organic sulfur compounds, were detected through high-resolution LC-MS/MS, among which were biomarkers of anammox bacteria, fungi, and lower animals. This report is the first to show that SPME can contribute to a broader understanding of deep sea ecology and biogeochemical cycles in hydrothermal vent ecosystems.
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Active subseafloor microbial communities from Mariana back-arc venting fluids share metabolic strategies across different thermal niches and taxa. ISME JOURNAL 2019; 13:2264-2279. [PMID: 31073213 PMCID: PMC6775965 DOI: 10.1038/s41396-019-0431-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2018] [Revised: 03/25/2019] [Accepted: 03/29/2019] [Indexed: 01/21/2023]
Abstract
There are many unknowns regarding the distribution, activity, community composition, and metabolic repertoire of microbial communities in the subseafloor of deep-sea hydrothermal vents. Here we provide the first characterization of subseafloor microbial communities from venting fluids along the central Mariana back-arc basin (15.5–18°N), where the slow-spreading rate, depth, and variable geochemistry along the back-arc distinguish it from other spreading centers. Results indicated that diverse Epsilonbacteraeota were abundant across all sites, with a population of high temperature Aquificae restricted to the northern segment. This suggests that differences in subseafloor populations along the back-arc are associated with local geologic setting and resultant geochemistry. Metatranscriptomics coupled to stable isotope probing revealed bacterial carbon fixation linked to hydrogen oxidation, denitrification, and sulfide or thiosulfate oxidation at all sites, regardless of community composition. NanoSIMS (nanoscale secondary ion mass spectrometry) incubations at 80 °C show only a small portion of the microbial community took up bicarbonate, but those autotrophs had the highest overall rates of activity detected across all experiments. By comparison, acetate was more universally utilized to sustain growth, but within a smaller range of activity. Together, results indicate that microbial communities in venting fluids from the Mariana back-arc contain active subseafloor communities reflective of their local conditions with metabolisms commonly shared across geologically disparate spreading centers throughout the ocean.
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8
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Morono Y, Wishart JR, Ito M, Ijiri A, Hoshino T, Torres M, Verba C, Terada T, Inagaki F, Colwell FS. Microbial Metabolism and Community Dynamics in Hydraulic Fracturing Fluids Recovered From Deep Hydrocarbon-Rich Shale. Front Microbiol 2019; 10:376. [PMID: 30915042 PMCID: PMC6422894 DOI: 10.3389/fmicb.2019.00376] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 02/13/2019] [Indexed: 11/29/2022] Open
Abstract
Hydraulic fracturing is a prominent method of natural gas production that uses injected, high-pressure fluids to fracture low permeability, hydrocarbon rich strata such as shale. Upon completion of a well, the fluid returns to the surface (produced water) and contains natural gas, subsurface constituents, and microorganisms (Barbot et al., 2013; Daly et al., 2016). While the microbial community of the produced fluids has been studied in multiple gas wells, the activity of these microorganisms and their relation to biogeochemical activity is not well understood. In this experiment, we supplemented produced fluid with 13C-labeled carbon sources (glucose, acetate, bicarbonate, methanol, or methane), and 15N-labeled ammonium chloride in order to isotopically trace microbial activity over multiple day in anoxic incubations. Nanoscale secondary ion mass spectrometry (NanoSIMS) was used to generate isotopic images of 13C and 15N incorporation in individual cells, while isotope ratio monitoring–gas chromatography–mass spectrometry (IRM–GC–MS) was used to measure 13CO2, and 13CH4 as metabolic byproducts. Glucose, acetate, and methanol were all assimilated by microorganisms under anoxic conditions. 13CO2 production was only observed with glucose as a substrate indicating that catabolic activity was limited to this condition. The microbial communities observed at 0, 19, and 32 days of incubation did not vary between different carbon sources, were low in diversity, and composed primarily of the class Clostridia. The primary genera detected in the incubations, Halanaerobium and Fusibacter, are known to be adapted to harsh physical and chemical conditions consistent with those that occur in the hydrofracturing environment. This study provides evidence that microorganisms in produced fluid are revivable in laboratory incubations and retained the ability to metabolize added carbon and nitrogen substrates.
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Affiliation(s)
- Yuki Morono
- Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Kochi, Japan.,Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
| | - Jessie R Wishart
- National Energy Technology Laboratory, United States Department of Energy, Albany, OR, United States
| | - Motoo Ito
- Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Kochi, Japan.,Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
| | - Akira Ijiri
- Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Kochi, Japan.,Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
| | - Tatsuhiko Hoshino
- Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Kochi, Japan.,Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
| | - Marta Torres
- College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, United States
| | - Circe Verba
- National Energy Technology Laboratory, United States Department of Energy, Albany, OR, United States
| | | | - Fumio Inagaki
- Kochi Institute for Core Sample Research, Japan Agency for Marine-Earth Science and Technology, Kochi, Japan.,Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan.,Research and Development Center for Ocean Drilling Science, Japan Agency for Marine-Earth Science and Technology, Yokohama, Japan
| | - Frederick S Colwell
- College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, United States
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Abstract
Secondary ion mass spectrometry (SIMS) has become an increasingly utilized tool in biologically relevant studies. Of these, high lateral resolution methodologies using the NanoSIMS 50/50L have been especially powerful within many biological fields over the past decade. Here, the authors provide a review of this technology, sample preparation and analysis considerations, examples of recent biological studies, data analyses, and current outlooks. Specifically, the authors offer an overview of SIMS and development of the NanoSIMS. The authors describe the major experimental factors that should be considered prior to NanoSIMS analysis and then provide information on best practices for data analysis and image generation, which includes an in-depth discussion of appropriate colormaps. Additionally, the authors provide an open-source method for data representation that allows simultaneous visualization of secondary electron and ion information within a single image. Finally, the authors present a perspective on the future of this technology and where they think it will have the greatest impact in near future.
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Cerqueira T, Pinho D, Froufe H, Santos RS, Bettencourt R, Egas C. Sediment Microbial Diversity of Three Deep-Sea Hydrothermal Vents Southwest of the Azores. MICROBIAL ECOLOGY 2017; 74:332-349. [PMID: 28144700 DOI: 10.1007/s00248-017-0943-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 01/19/2017] [Indexed: 06/06/2023]
Abstract
Menez Gwen, Lucky Strike and Rainbow are the three most visited and well-known deep-sea hydrothermal vent fields in the Azores region, located in the Mid-Atlantic Ridge. Their distinct geological and ecological features allow them to support a diversity of vent communities, which are largely dependent on Bacteria and Archaea capable of anaerobic or microaerophilic metabolism. These communities play important ecological roles through chemoautotrophy, feeding and in establishing symbiotic associations. However, the occurrence and distribution of these microbes remain poorly understood, especially in deep-sea sediments. In this study, we provide for the first time a comparative survey of the sediment-associated microbial communities from these three neighbouring vent fields. Sediment samples collected in the Menez Gwen, Lucky Strike and Rainbow vent fields showed significant differences in trace-metal concentrations and associated microbiomes. The taxonomic profiles of bacterial, archaeal and eukaryotic representatives were assessed by rRNA gene-tag pyrosequencing, identified anaerobic methanogens and microaerobic Epsilonproteobacteria, particularly at the Menez Gwen site, suggesting sediment communities potentially enriched in sub-seafloor microbes rather than from pelagic microbial taxa. Cosmopolitan OTUs were also detected mostly at Lucky Strike and Rainbow sites and affiliated with the bacterial clades JTB255, Sh765B-TzT-29, Rhodospirillaceae and OCS155 marine group and with the archaeal Marine Group I. Some variations in the community composition along the sediment depth were revealed. Elemental contents and hydrothermal influence are suggested as being reflected in the composition of the microbial assemblages in the sediments of the three vent fields. Altogether, these findings represent valuable information for the understanding of the microbial distribution and potential ecological roles in deep-sea hydrothermal fields.
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Affiliation(s)
- Teresa Cerqueira
- Department of Oceanography and Fisheries, University of the Azores, Rua Prof. Dr. Frederico Machado, 4, 9901-862, Horta, Portugal.
- MARE-Marine and Environmental Sciences Centre-Azores, Rua Prof. Dr. Frederico Machado, 4, 9901-862, Horta, Portugal.
| | - Diogo Pinho
- Next Generation Sequencing Unit, UCBiotech-CNC, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 8, 3060-197, Cantanhede, Portugal
| | - Hugo Froufe
- Next Generation Sequencing Unit, UCBiotech-CNC, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 8, 3060-197, Cantanhede, Portugal
| | - Ricardo S Santos
- Department of Oceanography and Fisheries, University of the Azores, Rua Prof. Dr. Frederico Machado, 4, 9901-862, Horta, Portugal
- MARE-Marine and Environmental Sciences Centre-Azores, Rua Prof. Dr. Frederico Machado, 4, 9901-862, Horta, Portugal
- OKEANOS Centre, Department of Oceanography and Fisheries, Faculty of Sciences and Technology, University of the Azores, Rua Prof. Dr. Frederico Machado, 4, 9901-862, Horta, Portugal
| | - Raul Bettencourt
- MARE-Marine and Environmental Sciences Centre-Azores, Rua Prof. Dr. Frederico Machado, 4, 9901-862, Horta, Portugal
- OKEANOS Centre, Department of Oceanography and Fisheries, Faculty of Sciences and Technology, University of the Azores, Rua Prof. Dr. Frederico Machado, 4, 9901-862, Horta, Portugal
| | - Conceição Egas
- Next Generation Sequencing Unit, UCBiotech-CNC, Parque Tecnológico de Cantanhede, Núcleo 04, Lote 8, 3060-197, Cantanhede, Portugal
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11
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Meier DV, Bach W, Girguis PR, Gruber-Vodicka HR, Reeves EP, Richter M, Vidoudez C, Amann R, Meyerdierks A. HeterotrophicProteobacteriain the vicinity of diffuse hydrothermal venting. Environ Microbiol 2016; 18:4348-4368. [DOI: 10.1111/1462-2920.13304] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 03/13/2016] [Indexed: 11/27/2022]
Affiliation(s)
- Dimitri V. Meier
- Max Planck Institute for Marine Microbiology; Celsiusstrasse 1 D-28359 Bremen Germany
| | - Wolfgang Bach
- University of Bremen, MARUM - Center for Marine Environmental Sciences, Petrology of the Ocean Crust group; Leobener Str. D-28359 Bremen Germany
| | - Peter R. Girguis
- Harvard University, Department of Organismic & Evolutionary Biology; 16 Divinity Avenue Cambridge MA 02138-2020 USA
| | | | - Eoghan P. Reeves
- University of Bremen, MARUM - Center for Marine Environmental Sciences, Petrology of the Ocean Crust group; Leobener Str. D-28359 Bremen Germany
- University of Bergen, Department of Earth Science and Centre for Geobiology; Postboks 7803 N-5020 Bergen Norway
| | - Michael Richter
- Max Planck Institute for Marine Microbiology; Celsiusstrasse 1 D-28359 Bremen Germany
| | - Charles Vidoudez
- Harvard University, Department of Organismic & Evolutionary Biology; 16 Divinity Avenue Cambridge MA 02138-2020 USA
| | - Rudolf Amann
- Max Planck Institute for Marine Microbiology; Celsiusstrasse 1 D-28359 Bremen Germany
| | - Anke Meyerdierks
- Max Planck Institute for Marine Microbiology; Celsiusstrasse 1 D-28359 Bremen Germany
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12
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Microbial diversity in deep-sea sediments from the Menez Gwen hydrothermal vent system of the Mid-Atlantic Ridge. Mar Genomics 2015; 24 Pt 3:343-55. [DOI: 10.1016/j.margen.2015.09.001] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 09/03/2015] [Accepted: 09/03/2015] [Indexed: 11/20/2022]
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13
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Stokke R, Dahle H, Roalkvam I, Wissuwa J, Daae FL, Tooming-Klunderud A, Thorseth IH, Pedersen RB, Steen IH. Functional interactions among filamentous Epsilonproteobacteria and Bacteroidetes in a deep-sea hydrothermal vent biofilm. Environ Microbiol 2015; 17:4063-77. [PMID: 26147346 DOI: 10.1111/1462-2920.12970] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 06/25/2015] [Accepted: 06/25/2015] [Indexed: 11/30/2022]
Abstract
Little is known about how lithoautotrophic primary production is connected to microbial organotrophic consumption in hydrothermal systems. Using a multifaceted approach, we analysed the structure and metabolic capabilities within a biofilm growing on the surface of a black smoker chimney in the Loki's Castle vent field. Imaging revealed the presence of rod-shaped Bacteroidetes growing as ectobionts on long, sheathed microbial filaments (> 100 μm) affiliated with the Sulfurovum genus within Epsilonproteobacteria. The filaments were composed of a thick (> 200 nm) stable polysaccharide, representing a substantial fraction of organic carbon produced by primary production. An integrated -omics approach enabled us to assess the metabolic potential and in situ metabolism of individual taxonomic and morphological groups identified by imaging. Specifically, we provide evidence that organotrophic Bacteroidetes attach to and glide along the surface of Sulfurovum filaments utilizing organic polymers produced by the lithoautotrophic Sulfurovum. Furthermore, in situ expression of acetyl-CoA synthetase by Sulfurovum suggested the ability to assimilate acetate, indicating recycling of organic matter in the biofilm. This study expands our understanding of the lifestyles of Epsilonproteobacteria in hydrothermal vents, their metabolic properties and co-operative interactions in deep-sea hydrothermal vent food webs.
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Affiliation(s)
- Runar Stokke
- Centre for Geobiology.,Department of Biology, University of Bergen, Allegaten 41, 5020, Bergen, Norway
| | - Håkon Dahle
- Centre for Geobiology.,Department of Biology, University of Bergen, Allegaten 41, 5020, Bergen, Norway
| | - Irene Roalkvam
- Centre for Geobiology.,Department of Biology, University of Bergen, Allegaten 41, 5020, Bergen, Norway
| | - Juliane Wissuwa
- Centre for Geobiology.,Department of Biology, University of Bergen, Allegaten 41, 5020, Bergen, Norway
| | - Frida Lise Daae
- Centre for Geobiology.,Department of Biology, University of Bergen, Allegaten 41, 5020, Bergen, Norway
| | - Ave Tooming-Klunderud
- Centre for Ecological and Evolutionary Synthesis, University of Oslo, Blindernveien 31, 0316, Oslo, Norway
| | - Ingunn H Thorseth
- Centre for Geobiology.,Department of Earth Science, University of Bergen, Allegaten 41, 5020, Bergen, Norway
| | - Rolf B Pedersen
- Centre for Geobiology.,Department of Earth Science, University of Bergen, Allegaten 41, 5020, Bergen, Norway
| | - Ida Helene Steen
- Centre for Geobiology.,Department of Biology, University of Bergen, Allegaten 41, 5020, Bergen, Norway
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