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Fluorescent-oligonucleotide probing of whole cells for determinative, phylogenetic, and environmental studies in microbiology
Fluorescent-dye-conjugated oligonucleotides were used to classify 14 Fibrobacter strains by fluorescence microscopy and the direct detection of F. intestinalis in mouse cecum samples demonstrated the application of this technique to the characterization of complex natural samples. Expand
In situ bioreduction of technetium and uranium in a nitrate-contaminated aquifer.
The results suggest that NO3(-)-dependent microbial U(IV) oxidation may inhibit or reverse U(VI) reduction and decrease the stability of U( IV) in this environment. Expand
Microbe grows by reducing arsenic
In-situ evidence for uranium immobilization and remobilization.
Findings indicate that in-situ subsurface U(VI) immobilization can be expected to take place under anaerobic conditions, but the permanence of the approach can be impaired by disimilatory nitrate reduction intermediates that can mobilize previously reduced uranium. Expand
Uranium reduction.
This review briefly addresses the research to identify specific uranium reductases and their cellular location, competition between uranium and other electron acceptors, attempts to stimulate in situ reduction, and mechanisms of reoxidation of reduced uranium minerals. Expand
Desulfuromonas chloroethenica sp. nov. Uses Tetrachloroethylene and Trichloroethylene as Electron Acceptors
Strain TT4B, isolated from freshwater sediments contaminated with chlorinated ethylenes, is described as Desulfuromonas chloroethenica sp. nov. This organism grows with acetate or pyruvate asExpand
Comparison of Species Richness Estimates Obtained Using Nearly Complete Fragments and Simulated Pyrosequencing-Generated Fragments in 16S rRNA Gene-Based Environmental Surveys
Regression analysis indicated that observed discrepancies in species richness estimates within various regions could readily be explained by the proportions of hypervariable, variable, and conserved base pairs within an examined fragment. Expand
Pore‐size constraints on the activity and survival of subsurface bacteria in a late cretaceous shale‐sandstone sequence, northwestern New Mexico
To investigate the distribution of microbial biomass and activities to gain insights into the physical controls on microbial activity and potential long‐term survival in the subsurface, 24 shale andExpand
Effect of warming and drought on grassland microbial communities
It is indicated that under warmed conditions, ecosystem water budget regulates the abundance and diversity of microbial populations and that rainfall timing is critical at the onset of drought for sustaining microbial populations. Expand
Survey of Archaeal Diversity Reveals an Abundance of Halophilic Archaea in a Low-Salt, Sulfide- and Sulfur-Rich Spring
It is reasoned that the unexpected abundance of halophilic Archaea in such a low-salt, highly reduced environment could be explained by their relatively low salt requirement, which could be satisfied in specific locations of the shallow spring via evaporation, and their ability to grow under the prevalent anaerobic conditions in the spring, utilizing zero-valent sulfur compounds as electron acceptors. Expand