Connectivity to the surface determines diversity patterns in subsurface aquifers of the Fennoscandian shield
Little research has been conducted on microbial diversity deep under the Earth's surface. In this study, the microbial communities of three deep terrestrial subsurface aquifers were investigated. Temporal community data over 6 years revealed that the phylogenetic structure and community dynamic...
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ftsubgoettingen:oai:publications.goettingen-research-online.de:2/39304 2023-09-05T13:19:24+02:00 Connectivity to the surface determines diversity patterns in subsurface aquifers of the Fennoscandian shield Hubalek, Valerie Wu, X. Eiler, Alexander Buck, Moritz Heim, Christine Dopson, Mark Bertilsson, Stefan Ionescu, Danny 2016 https://resolver.sub.uni-goettingen.de/purl?gro-2/39304 https://doi.org/10.1038/ismej.2016.36 unknown 1751-7370 1751-7362 https://resolver.sub.uni-goettingen.de/purl?gro-2/39304 doi:10.1038/ismej.2016.36 000387035400009 journal_article yes 2016 ftsubgoettingen https://doi.org/10.1038/ismej.2016.36 2023-08-20T22:13:26Z Little research has been conducted on microbial diversity deep under the Earth's surface. In this study, the microbial communities of three deep terrestrial subsurface aquifers were investigated. Temporal community data over 6 years revealed that the phylogenetic structure and community dynamics were highly dependent on the degree of isolation from the earth surface biomes. The microbial community at the shallow site was the most dynamic and was dominated by the sulfur-oxidizing genera Sulfurovum or Sulfurimonas at all-time points. The microbial community in the meteoric water filled intermediate aquifer (water turnover approximately every 5 years) was less variable and was dominated by candidate phylum OD1. Metagenomic analysis of this water demonstrated the occurrence of key genes for nitrogen and carbon fixation, sulfate reduction, sulfide oxidation and fermentation. The deepest water mass (5000 year old waters) had the lowest taxon richness and surprisingly contained Cyanobacteria. The high relative abundance of phylogenetic groups associated with nitrogen and sulfur cycling, as well as fermentation implied that these processes were important in these systems. We conclude that the microbial community patterns appear to be shaped by the availability of energy and nutrient sources via connectivity to the surface or from deep geological processes. Article in Journal/Newspaper Fennoscandian Georg-August-Universität Göttingen: GoeScholar The ISME Journal 10 10 2447 2458 |
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Open Polar |
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Georg-August-Universität Göttingen: GoeScholar |
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ftsubgoettingen |
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unknown |
description |
Little research has been conducted on microbial diversity deep under the Earth's surface. In this study, the microbial communities of three deep terrestrial subsurface aquifers were investigated. Temporal community data over 6 years revealed that the phylogenetic structure and community dynamics were highly dependent on the degree of isolation from the earth surface biomes. The microbial community at the shallow site was the most dynamic and was dominated by the sulfur-oxidizing genera Sulfurovum or Sulfurimonas at all-time points. The microbial community in the meteoric water filled intermediate aquifer (water turnover approximately every 5 years) was less variable and was dominated by candidate phylum OD1. Metagenomic analysis of this water demonstrated the occurrence of key genes for nitrogen and carbon fixation, sulfate reduction, sulfide oxidation and fermentation. The deepest water mass (5000 year old waters) had the lowest taxon richness and surprisingly contained Cyanobacteria. The high relative abundance of phylogenetic groups associated with nitrogen and sulfur cycling, as well as fermentation implied that these processes were important in these systems. We conclude that the microbial community patterns appear to be shaped by the availability of energy and nutrient sources via connectivity to the surface or from deep geological processes. |
format |
Article in Journal/Newspaper |
author |
Hubalek, Valerie Wu, X. Eiler, Alexander Buck, Moritz Heim, Christine Dopson, Mark Bertilsson, Stefan Ionescu, Danny |
spellingShingle |
Hubalek, Valerie Wu, X. Eiler, Alexander Buck, Moritz Heim, Christine Dopson, Mark Bertilsson, Stefan Ionescu, Danny Connectivity to the surface determines diversity patterns in subsurface aquifers of the Fennoscandian shield |
author_facet |
Hubalek, Valerie Wu, X. Eiler, Alexander Buck, Moritz Heim, Christine Dopson, Mark Bertilsson, Stefan Ionescu, Danny |
author_sort |
Hubalek, Valerie |
title |
Connectivity to the surface determines diversity patterns in subsurface aquifers of the Fennoscandian shield |
title_short |
Connectivity to the surface determines diversity patterns in subsurface aquifers of the Fennoscandian shield |
title_full |
Connectivity to the surface determines diversity patterns in subsurface aquifers of the Fennoscandian shield |
title_fullStr |
Connectivity to the surface determines diversity patterns in subsurface aquifers of the Fennoscandian shield |
title_full_unstemmed |
Connectivity to the surface determines diversity patterns in subsurface aquifers of the Fennoscandian shield |
title_sort |
connectivity to the surface determines diversity patterns in subsurface aquifers of the fennoscandian shield |
publishDate |
2016 |
url |
https://resolver.sub.uni-goettingen.de/purl?gro-2/39304 https://doi.org/10.1038/ismej.2016.36 |
genre |
Fennoscandian |
genre_facet |
Fennoscandian |
op_relation |
1751-7370 1751-7362 https://resolver.sub.uni-goettingen.de/purl?gro-2/39304 doi:10.1038/ismej.2016.36 000387035400009 |
op_doi |
https://doi.org/10.1038/ismej.2016.36 |
container_title |
The ISME Journal |
container_volume |
10 |
container_issue |
10 |
container_start_page |
2447 |
op_container_end_page |
2458 |
_version_ |
1776200176163094528 |