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Quantifying community assembly processes and identifying features that impose them
TLDR
An analytical framework is developed for interrogation of subsurface microbial communities distributed across two geologically distinct formations of the unconfined aquifer underlying the Hanford Site in southeastern Washington State that quantitatively estimate influences of Drift, Selection and Dispersal.
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Electrically conductive bacterial nanowires produced by Shewanella oneidensis strain MR-1 and other microorganisms.
TLDR
Nanowires produced by the oxygenic phototrophic cyanobacterium Synechocystis PCC6803 and the thermophilic, fermentative bacterium Pelotomaculum thermopropionicum reveal that electrically conductive appendages are not exclusive to dissimilatory metal-reducing bacteria and may, in fact, represent a common bacterial strategy for efficient electron transfer and energy distribution.
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BIOGENIC IRON MINERALIZATION ACCOMPANYING THE DISSIMILATORY REDUCTION OF HYDROUS FERRIC OXIDE BY A GROUNDWATER BACTERIUM
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Stochastic and deterministic assembly processes in subsurface microbial communities
TLDR
The results point to general rules governing the relative influences of stochastic and deterministic processes across micro- and macro-organisms.
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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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Accumulation of Mn(II) in Deinococcus radiodurans Facilitates Gamma-Radiation Resistance
TLDR
It is proposed that Mn(II) accumulation facilitates recovery from radiation injury and exhibits a concentration-dependent response to manganous chloride [Mn(II).
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Protein Oxidation Implicated as the Primary Determinant of Bacterial Radioresistance
TLDR
It is presented the case that protein, rather than DNA, is the principal target of the biological action of IR in sensitive bacteria, and extreme resistance in Mn-accumulating bacteria is based on protein protection.
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Towards environmental systems biology of Shewanella
TLDR
Systems-level analysis of the model species Shewanella oneidensis MR-1 and other members of this genus has provided new insights into the signal-transduction proteins, regulators, and metabolic and respiratory subsystems that govern the remarkable versatility of the shewanellae.
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Complete Sequence of a 184-Kilobase Catabolic Plasmid from Sphingomonas aromaticivorans F199
TLDR
The complete 184,457-bp sequence of the aromatic catabolic plasmid, pNL1, from Sphingomonas aromaticivorans F199 has been determined, and several genes associated with integration and recombination were identified in the replication region, suggesting that pNL 1 is able to undergo integration and excision events with the chromosome and/or other portions of the plasmids.
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Biomineralization of Poorly Crystalline Fe(III) Oxides by Dissimilatory Metal Reducing Bacteria (DMRB)
TLDR
The state of knowledge on the biotransformation of synthetic 2-line ferrihydrite by laboratory cultures of DMRB is described using select published data and new experimental results.
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