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Molecular characterization of bacterial communities mineralizing benzene under sulfate-reducing conditions.
TLDR
A functional model for syntrophic benzene degradation under sulfate-reducing conditions is proposed and this organism appears to be specific for benzene as a growth substrate and might play a key role in Benzene degradation in both communities.
Key players and team play: anaerobic microbial communities in hydrocarbon-contaminated aquifers
TLDR
Current approaches to analyze composition, dynamics, and functional diversity of subsurface communities, to link identity to activity and metabolic function, and to identify the ecophysiological role of not yet cultured microbes and syntrophic consortia are focused on.
Microbial communities along biogeochemical gradients in a hydrocarbon-contaminated aquifer.
TLDR
Investigation of microbial communities in a highly complex environment: the capillary fringe and subjacent sediments in a hydrocarbon-contaminated aquifer revealed concentrations of contaminants and the position of the water table as significant factors shaping the microbial community composition.
Phenol Degradation in the Strictly Anaerobic Iron-Reducing Bacterium Geobacter metallireducens GS-15
TLDR
Phenol degradation in the strictly anaerobic iron-reducing deltaproteobacterium Geobacter metallireducens GS-15 is investigated using metabolite, transcriptome, proteome, and enzyme analyses, which showed that the initial steps of phenol degradation are accomplished by phenylphosphate synthase and phenyl phosphate carboxylase as known from Thauera aromatica, but they also revealed some distinct differences.
Localization and Characterization of Two Novel Genes Encoding Stereospecific Dioxygenases Catalyzing 2(2,4-Dichlorophenoxy)propionate Cleavage in Delftia acidovorans MC1
Two novel genes, rdpA and sdpA, encoding the enantiospecific α-ketoglutarate dependent dioxygenases catalyzing R,S-dichlorprop cleavage in Delftia acidovorans MC1 were identified. Significant
Effects of hydrogen and acetate on benzene mineralisation under sulphate-reducing conditions.
TLDR
The results strongly point to an involvement of syntrophic interactions in the process of benzene mineralisation by a single sulphate reducer, indicating that ATP-consuming reactions are involved in the pathway.
Metagenome-Based Metabolic Reconstruction Reveals the Ecophysiological Function of Epsilonproteobacteria in a Hydrocarbon-Contaminated Sulfidic Aquifer
TLDR
It is proposed that acetate capture and sulfur cycling as key functions of Epsilonproteobacteria within the intermediary ecosystem metabolism of hydrocarbon-rich sulfidic sediments and nitrogen fixation as indicated by the presence of nif genes may provide a selective advantage in nitrogen-depleted habitats.
Localization and Characterization of Two Novel Genes Encoding Stereospecific Dioxygenases Catalyzing 2(2,4-Dichlorophenoxy)propionate Cleavage in Delftia acidovorans MC1
ABSTRACT Two novel genes, rdpA and sdpA, encoding the enantiospecific α-ketoglutarate dependent dioxygenases catalyzing R,S-dichlorprop cleavage in Delftia acidovorans MC1 were identified.
Structural Characterization of ISCR8, ISCR22, and ISCR23, Subgroups of IS91-Like Insertion Elements
TLDR
This study shows that ISCR8 could be a fully functional and active member of the IS91 family of insertion elements.
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