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Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge

In order to expand the knowledge of microbial ecosystems from deep-sea hydrothermal vent systems located on the Central and South-East Indian Ridge, we sampled hydrothermal fluids, massive sulfides, ambient water and sediments of six distinct vent fields. Most of these vent sites were only recently...

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Autores principales: Adam-Beyer, Nicole, Laufer-Meiser, Katja, Fuchs, Sebastian, Schippers, Axel, Indenbirken, Daniela, Garbe-Schönberg, Dieter, Petersen, Sven, Perner, Mirjam
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10598711/
https://www.ncbi.nlm.nih.gov/pubmed/37886064
http://dx.doi.org/10.3389/fmicb.2023.1173613
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author Adam-Beyer, Nicole
Laufer-Meiser, Katja
Fuchs, Sebastian
Schippers, Axel
Indenbirken, Daniela
Garbe-Schönberg, Dieter
Petersen, Sven
Perner, Mirjam
author_facet Adam-Beyer, Nicole
Laufer-Meiser, Katja
Fuchs, Sebastian
Schippers, Axel
Indenbirken, Daniela
Garbe-Schönberg, Dieter
Petersen, Sven
Perner, Mirjam
author_sort Adam-Beyer, Nicole
collection PubMed
description In order to expand the knowledge of microbial ecosystems from deep-sea hydrothermal vent systems located on the Central and South-East Indian Ridge, we sampled hydrothermal fluids, massive sulfides, ambient water and sediments of six distinct vent fields. Most of these vent sites were only recently discovered in the course of the German exploration program for massive sulfide deposits and no previous studies of the respective microbial communities exist. Apart from typically vent-associated chemosynthetic members of the orders Campylobacterales, Mariprofundales, and Thiomicrospirales, high numbers of uncultured and unspecified Bacteria were identified via 16S rRNA gene analyses in hydrothermal fluid and massive sulfide samples. The sampled sediments however, were characterized by an overall lack of chemosynthetic Bacteria and the presence of high proportions of low abundant bacterial groups. The archaeal communities were generally less diverse and mostly dominated by members of Nitrosopumilales and Woesearchaeales, partly exhibiting high proportions of unassigned Archaea. Correlations with environmental parameters were primarily observed for sediment communities and for microbial species (associated with the nitrogen cycle) in samples from a recently identified vent field, which was geochemically distinct from all other sampled sites. Enrichment cultures of diffuse fluids demonstrated a great potential for hydrogen oxidation coupled to the reduction of various electron-acceptors with high abundances of Hydrogenovibrio and Sulfurimonas species. Overall, given the large number of currently uncultured and unspecified microorganisms identified in the vent communities, their respective metabolic traits, ecosystem functions and mediated biogeochemical processes have still to be resolved for estimating consequences of potential environmental disturbances by future mining activities.
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spelling pubmed-105987112023-10-26 Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge Adam-Beyer, Nicole Laufer-Meiser, Katja Fuchs, Sebastian Schippers, Axel Indenbirken, Daniela Garbe-Schönberg, Dieter Petersen, Sven Perner, Mirjam Front Microbiol Microbiology In order to expand the knowledge of microbial ecosystems from deep-sea hydrothermal vent systems located on the Central and South-East Indian Ridge, we sampled hydrothermal fluids, massive sulfides, ambient water and sediments of six distinct vent fields. Most of these vent sites were only recently discovered in the course of the German exploration program for massive sulfide deposits and no previous studies of the respective microbial communities exist. Apart from typically vent-associated chemosynthetic members of the orders Campylobacterales, Mariprofundales, and Thiomicrospirales, high numbers of uncultured and unspecified Bacteria were identified via 16S rRNA gene analyses in hydrothermal fluid and massive sulfide samples. The sampled sediments however, were characterized by an overall lack of chemosynthetic Bacteria and the presence of high proportions of low abundant bacterial groups. The archaeal communities were generally less diverse and mostly dominated by members of Nitrosopumilales and Woesearchaeales, partly exhibiting high proportions of unassigned Archaea. Correlations with environmental parameters were primarily observed for sediment communities and for microbial species (associated with the nitrogen cycle) in samples from a recently identified vent field, which was geochemically distinct from all other sampled sites. Enrichment cultures of diffuse fluids demonstrated a great potential for hydrogen oxidation coupled to the reduction of various electron-acceptors with high abundances of Hydrogenovibrio and Sulfurimonas species. Overall, given the large number of currently uncultured and unspecified microorganisms identified in the vent communities, their respective metabolic traits, ecosystem functions and mediated biogeochemical processes have still to be resolved for estimating consequences of potential environmental disturbances by future mining activities. Frontiers Media S.A. 2023-10-11 /pmc/articles/PMC10598711/ /pubmed/37886064 http://dx.doi.org/10.3389/fmicb.2023.1173613 Text en Copyright © 2023 Adam-Beyer, Laufer-Meiser, Fuchs, Schippers, Indenbirken, Garbe-Schönberg, Petersen and Perner. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Adam-Beyer, Nicole
Laufer-Meiser, Katja
Fuchs, Sebastian
Schippers, Axel
Indenbirken, Daniela
Garbe-Schönberg, Dieter
Petersen, Sven
Perner, Mirjam
Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge
title Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge
title_full Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge
title_fullStr Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge
title_full_unstemmed Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge
title_short Microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the Central and South-East Indian Ridge
title_sort microbial ecosystem assessment and hydrogen oxidation potential of newly discovered vent systems from the central and south-east indian ridge
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10598711/
https://www.ncbi.nlm.nih.gov/pubmed/37886064
http://dx.doi.org/10.3389/fmicb.2023.1173613
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