ArticleBioMed research international2015
Active Microbial Communities Inhabit Sulphate-Methane Interphase in Deep Bedrock Fracture Fluids in Olkiluoto, Finland.
Article in BioMed research international, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 1 of them a synthesis that pooled it.
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Who cites it
26 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
- Cross-feeding options define genome evolution and community assembly of deep groundwater microbiome.Environmental microbiome · 2026Article
- Resilience of deep aquifer microbial communities to seasonal hydrological fluctuations.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Hydrogeological and geological partitioning of iron and sulfur cycling bacterial consortia in subsurface coal-based mine waters.FEMS microbiology ecology · 2025Article
- Investigating the activity of indigenous microbial communities from Italian depleted gas reservoirs and their possible impact on underground hydrogen storage.Frontiers in microbiology · 2024Article
- Advances in Defining Ecosystem Functions of the Terrestrial Subsurface Biosphere.Frontiers in microbiology · 2022Review
- A deep continental aquifer downhole sampler for microbiological studies.Frontiers in microbiology · 2022Article
- Epilithic Microbial Community Functionality in Deep Oligotrophic Continental Bedrock.Frontiers in microbiology · 2022Article
- Ultradeep Microbial Communities at 4.4 km within Crystalline Bedrock: Implications for Habitability in a Planetary Context.Life (Basel, Switzerland) · 2020Article
- The Impact of Methane on Microbial Communities at Marine Arctic Gas Hydrate Bearing Sediment.Frontiers in microbiology · 2020Article
- Microbial Life in the Deep Subsurface Aquifer Illuminated by Metagenomics.Frontiers in microbiology · 2020Article
- Comamonadaceae OTU as a Remnant of an Ancient Microbial Community in Sulfidic Waters.Microbial ecology · 2019Article
- Carbonate formation in salt dome cap rocks by microbial anaerobic oxidation of methane.Nature communications · 2019Article
- Archaeal Communities in Deep Terrestrial Subsurface Underneath the Deccan Traps, India.Frontiers in microbiology · 2019Article
- Investigation of viable taxa in the deep terrestrial biosphere suggests high rates of nutrient recycling.FEMS microbiology ecology · 2018Article
- Ecological and genomic profiling of anaerobic methane-oxidizing archaea in a deep granitic environment.The ISME journal · 2018Article
- Biogeochemical Cycling by a Low-Diversity Microbial Community in Deep Groundwater.Frontiers in microbiology · 2018Article
- Wells provide a distorted view of life in the aquifer: implications for sampling, monitoring and assessment of groundwater ecosystems.Scientific reports · 2017Article
- Response of Deep Subsurface Microbial Community to Different Carbon Sources and Electron Acceptors during ∼2 months Incubation in Microcosms.Frontiers in microbiology · 2017Article
- Geological and Geochemical Controls on Subsurface Microbial Life in the Samail Ophiolite, Oman.Frontiers in microbiology · 2017Article
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Authors and funding
5 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Active microbial communities of deep crystalline bedrock fracture water were investigated from seven different boreholes in Olkiluoto (Western Finland) using bacterial and archaeal 16S rRNA, dsrB, and mcrA gene transcript targeted 454 pyrosequencing. Over a depth range of 296-798 m below ground surface the microbial communities changed according to depth, salinity gradient, and sulphate and methane concentrations. The highest bacterial diversity was observed in the sulphate-methane mixing zone (SMMZ) at 250-350 m depth, whereas archaeal diversity was highest in the lowest boundaries of the SMMZ. Sulphide-oxidizing ε-proteobacteria (Sulfurimonas sp.) dominated in the SMMZ and γ-proteobacteria (Pseudomonas spp.) below the SMMZ. The active archaeal communities consisted mostly of ANME-2D and Thermoplasmatales groups, although Methermicoccaceae, Methanobacteriaceae, and Thermoplasmatales (SAGMEG, TMG) were more common at 415-559 m depth. Typical indicator microorganisms for sulphate-methane transition zones in marine sediments, such as ANME-1 archaea, α-, β- and δ-proteobacteria, JS1, Actinomycetes, Planctomycetes, Chloroflexi, and MBGB Crenarchaeota were detected at specific depths. DsrB genes were most numerous and most actively transcribed in the SMMZ while the mcrA gene concentration was highest in the deep methane rich groundwater. Our results demonstrate that active and highly diverse but sparse and stratified microbial communities inhabit the Fennoscandian deep bedrock ecosystems.
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