ArticleApplied and environmental microbiology2012
Distribution of microbial biomass and potential for anaerobic respiration in Hanford Site 300 Area subsurface sediment.
Article in Applied and environmental microbiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.
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Who cites it
18 citing papers in PubMed.
- Biological and Chemical Processes of Nitrate Reduction and Ferrous Oxidation Mediated byMicroorganisms · 2024Article
- Potential applications of microbial genomics in nuclear non-proliferation.Frontiers in microbiology · 2024Review
- Biotic dissolution of autunite under anaerobic conditions: effect of bicarbonates and Shewanella oneidensis MR1 microbial activity.Environmental geochemistry and health · 2020Article
- Bacterial and Archaeal Diversity and Abundance in Shallow Subsurface Clay Sediments at Jianghan Plain, China.Frontiers in microbiology · 2020Article
- Impact of hydrologic boundaries on microbial planktonic and biofilm communities in shallow terrestrial subsurface environments.FEMS microbiology ecology · 2018Review
- Influences of organic carbon speciation on hyporheic corridor biogeochemistry and microbial ecology.Nature communications · 2018Article
- Coupling among Microbial Communities, Biogeochemistry, and Mineralogy across Biogeochemical Facies.Scientific reports · 2016Article
- Alpha- and Gammaproteobacterial Methanotrophs Codominate the Active Methane-Oxidizing Communities in an Acidic Boreal Peat Bog.Applied and environmental microbiology · 2016Article
- Metals other than uranium affected microbial community composition in a historical uranium-mining site.Environmental science and pollution research international · 2015Article
- Microbial mineral colonization across a subsurface redox transition zone.Frontiers in microbiology · 2015Article
- Estimating and mapping ecological processes influencing microbial community assembly.Frontiers in microbiology · 2015Article
- Radioiodine Biogeochemistry and Prevalence in Groundwater.Critical reviews in environmental science and technology · 2014Article
- Fe-oxide grain coatings support bacterial Fe-reducing metabolisms in 1.7-2.0 km-deep subsurface quartz arenite sandstone reservoirs of the Illinois Basin (USA).Frontiers in microbiology · 2014Article
- Quantifying community assembly processes and identifying features that impose them.The ISME journal · 2013Article
- Fe-phyllosilicate redox cycling organisms from a redox transition zone in Hanford 300 Area sediments.Frontiers in microbiology · 2013Article
- FunGene: the functional gene pipeline and repository.Frontiers in microbiology · 2013Article
- Spatial and temporal dynamics of the microbial community in the Hanford unconfined aquifer.The ISME journal · 2012Article
- Application of meta-transcriptomics and -proteomics to analysis of in situ physiological state.Frontiers in microbiology · 2012Article
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Subsurface sediments were recovered from a 52-m-deep borehole cored in the 300 Area of the Hanford Site in southeastern Washington State to assess the potential for biogeochemical transformation of radionuclide contaminants. Microbial analyses were made on 17 sediment samples traversing multiple geological units: the oxic coarse-grained Hanford formation (9 to 17.4 m), the oxic fine-grained upper Ringold formation (17.7 to 18.1 m), and the reduced Ringold formation (18.3 to 52 m). Microbial biomass (measured as phospholipid fatty acids) ranged from 7 to 974 pmols per g in discrete samples, with the highest numbers found in the Hanford formation. On average, strata below 17.4 m had 13-fold less biomass than those from shallower strata. The nosZ gene that encodes nitrous oxide reductase (measured by quantitative real-time PCR) had an abundance of 5 to 17 relative to that of total 16S rRNA genes below 18.3 m and <5 above 18.1 m. Most nosZ sequences were affiliated with Ochrobactrum anthropi (97 sequence similarity) or had a nearest neighbor of Achromobacter xylosoxidans (90 similarity). Passive multilevel sampling of groundwater geochemistry demonstrated a redox gradient in the 1.5-m region between the Hanford-Ringold formation contact and the Ringold oxic-anoxic interface. Within this zone, copies of the dsrA gene and Geobacteraceae had the highest relative abundance. The majority of dsrA genes detected near the interface were related to Desulfotomaculum spp. These analyses indicate that the region just below the contact between the Hanford and Ringold formations is a zone of active biogeochemical redox cycling.
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