ArticleThe ISME journal2016
Connectivity to the surface determines diversity patterns in subsurface aquifers of the Fennoscandian shield.
Article in The ISME journal, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 45 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
45 citing papers in PubMed, 1 synthesis or guideline pooled it.
- A global perspective on bacterial diversity in the terrestrial deep subsurface.Microbiology (Reading, England) · 2023Pooled it
- Groundwater microbial communities across the terrestrial subsurface.Nature microbiology · 2026Review
- Exploring microbial diversity using cell-size fractionated enrichment incubations from subsurface aquifers at Äspö, Sweden.Communications biology · 2026Article
- Use of Microbial Biofilms to Assess Groundwater Quality in Karstic Ecosystems.Environmental microbiology · 2026Article
- Two worlds beneath: Distinct microbial strategies of the rock-attached and planktonic subsurface biosphere.Microbiome · 2026Article
- Deep subsurface organic-rich shale supports abundant, diverse, and novel fungi.The ISME journal · 2026Article
- Spatial and temporal groundwater biogeochemical variability help inform subsurface connectivity within a high-altitude Alpine catchment (Riale di Ronco, Switzerland).Frontiers in microbiology · 2025Article
- A global deep terrestrial biosphere core microbiome.ISME communications · 2025Article
- Microbial diversity and biogeochemical interactions in the seismically active and COEnvironmental microbiome · 2024Article
- A global comparison of surface and subsurface microbiomes reveals large-scale biodiversity gradients, and a marine-terrestrial divide.Science advances · 2024Article
- Candidatus Desulforudis audaxviator dominates a 975 m deep groundwater community in central Sweden.Communications biology · 2024Article
- Novel candidate taxa contribute to key metabolic processes in Fennoscandian Shield deep groundwaters.ISME communications · 2024Article
- May microbial ecological baseline exist in continental groundwater?Microbiome · 2023Article
- Thiobacillus as a key player for biofilm formation in oligotrophic groundwaters of the Fennoscandian Shield.NPJ biofilms and microbiomes · 2023Article
- Ultra-small bacteria and archaea exhibit genetic flexibility towards groundwater oxygen content, and adaptations for attached or planktonic lifestyles.ISME communications · 2023Article
- Out of the blue: the independent activity of sulfur-oxidizers and diatoms mediate the sudden color shift of a tropical river.Environmental microbiome · 2023Article
- Microbial degradation and assimilation of veratric acid in oxic and anoxic groundwaters.Frontiers in microbiology · 2023Article
- Geological activity shapes the microbiome in deep-subsurface aquifers by advection.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Connectivity of Fennoscandian Shield terrestrial deep biosphere microbiomes with surface communities.Communications biology · 2022Article
- Depth wide distribution and metabolic potential of chemolithoautotrophic microorganisms reactivated from deep continental granitic crust underneath the Deccan Traps at Koyna, India.Frontiers in microbiology · 2022Article
Corrections and comments
- Erratum issued
Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
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.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.