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Polyphasic taxonomy of the genus Shewanella and description of Shewanella oneidensis sp. nov.
TLDR
This polyphasic taxonomy takes into account all available phenotypic and genotypic data and integrates them into a consensus classification of Shewanella species based on information generated from this study and obtained from the literature.
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Archaeal Diversity in Waters from Deep South African Gold Mines
TLDR
The results suggest that deep South African gold mines harbor novel archaeal communities distinct from those observed in other environments, and the evolutionary relationship and the phylogenetic organization of the domain Archaea are re evaluated.
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Environmental Genomics Reveals a Single-Species Ecosystem Deep Within Earth
TLDR
DNA from low-biodiversity fracture water collected at 2.8-kilometer depth in a South African gold mine was sequenced and assembled into a single, complete genome that indicates a motile, sporulating, sulfate-reducing, chemoautotrophic thermophile that can fix its own nitrogen and carbon by using machinery shared with archaea.
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Long-Term Sustainability of a High-Energy, Low-Diversity Crustal Biome
Geochemical, microbiological, and molecular analyses of alkaline saline groundwater at 2.8 kilometers depth in Archaean metabasalt revealed a microbial biome dominated by a single phylotype…
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Alkaliphilus transvaalensis gen. nov., sp. nov., an extremely alkaliphilic bacterium isolated from a deep South African gold mine.
TLDR
On the basis of physiological and molecular properties, the isolate represents a novel species, for which the name Alkaliphilus transvaalensis gen. nov., sp.
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Diversity of Thiosulfate-Oxidizing Bacteria from Marine Sediments and Hydrothermal Vents
ABSTRACT Species diversity, phylogenetic affiliations, and environmental occurrence patterns of thiosulfate-oxidizing marine bacteria were investigated by using new isolates from serially diluted…
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Dating ultra-deep mine waters with noble gases and 36Cl, Witwatersrand Basin, South Africa
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Unravelling abiogenic and biogenic sources of methane in the Earth's deep subsurface
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The Distribution of Microbial Taxa in the Subsurface Water of the Kalahari Shield, South Africa
TLDR
Borehole fluids derived from deep fractures were populated by microbial communities with low diversity with an average of 11 and 5 bacterial and archaeal OTUs respectively, likely driven by limited biogeochemical reactions available for growth and not extreme parameters such as pH and temperature.
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Related assemblages of sulphate-reducing bacteria associated with ultradeep gold mines of South Africa and deep basalt aquifers of Washington State.
TLDR
The dsr sequences recovered from the Washington State deep aquifer systems affiliated closely with the South African sequences, suggesting that Gram-positive sulphate-reducing bacteria are widely distributed in the deep subsurface.
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