13 Result(s)
within
Simon K.-M. R. Rittmann
English
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Article
Open AccessNADH and NADPH peroxidases as antioxidant defense mechanisms in intestinal sulfate-reducing bacteria
Animal and human feces typically include intestinal sulfate-reducing bacteria (SRB). Hydrogen sulfide and acetate are the end products of their dissimilatory sulfate reduction and may create a synergistic effe...
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Article
Open AccessActin cytoskeleton and complex cell architecture in an Asgard archaeon
Asgard archaea are considered to be the closest known relatives of eukaryotes. Their genomes contain hundreds of eukaryotic signature proteins (ESPs), which inspired hypotheses on the evolution of the eukaryot...
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Article
Open AccessSepF is the FtsZ anchor in archaea, with features of an ancestral cell division system
Most archaea divide by binary fission using an FtsZ-based system similar to that of bacteria, but they lack many of the divisome components described in model bacterial organisms. Notably, among the multiple f...
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Open AccessHyperthermophilic methanogenic archaea act as high-pressure CH4 cell factories
Bioprocesses converting carbon dioxide with molecular hydrogen to methane (CH4) are currently being developed to enable a transition to a renewable energy production system. In this study, we present a comprehens...
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Open AccessBiohydrogen production beyond the Thauer limit by precision design of artificial microbial consortia
Dark fermentative biohydrogen (H2) production could become a key technology for providing renewable energy. Until now, the H2 yield is restricted to 4 moles of H2 per mole of glucose, referred to as the “Thauer l...
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Microbial Diversity and Biosignatures: An Icy Moons Perspective
The icy moons of the outer Solar System harbor potentially habitable environments for life, however, compared to the terrestrial biosphere, these environments are characterized by extremes in temperature, pres...
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Open AccessExploring the microbial biotransformation of extraterrestrial material on nanometer scale
Exploration of microbial-meteorite redox interactions highlights the possibility of bioprocessing of extraterrestrial metal resources and reveals specific microbial fingerprints left on extraterrestrial materi...
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Open AccessMethods for quantification of growth and productivity in anaerobic microbiology and biotechnology
Anaerobic microorganisms (anaerobes) possess a fascinating metabolic versatility. This characteristic makes anaerobes interesting candidates for physiological studies and utilizable as microbial cell factories...
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Article
Open AccessThe physiological effect of heavy metals and volatile fatty acids on Methanococcus maripaludis S2
Methanogenic archaea are of importance to the global C-cycle and to biological methane (CH4) production through anaerobic digestion and pure culture. Here, the individual and combined effects of copper (Cu), zinc...
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Article
Open AccessMetabolic reconstruction and experimental verification of glucose utilization in Desulfurococcus amylolyticus DSM 16532
Desulfurococcus amylolyticus DSM 16532 is an anaerobic and hyperthermophilic crenarchaeon known to grow on a variety of different carbon sources, including monosaccharides and polysaccharides. Furthermore, D. amy...
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Article
Open AccessPhysiology and methane productivity of Methanobacterium thermaggregans
Accumulation of carbon dioxide (CO2), associated with global temperature rise, and drastically decreasing fossil fuels necessitate the development of improved renewable and sustainable energy production processes...
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Open AccessBiological methane production under putative Enceladus-like conditions
The detection of silica-rich dust particles, as an indication for ongoing hydrothermal activity, and the presence of water and organic molecules in the plume of Enceladus, have made Saturn’s icy moon a hot spo...
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A Critical Assessment of Microbiological Biogas to Biomethane Upgrading Systems
Microbiological biogas upgrading could become a promising technology for production of methane (CH4). This is, storage of irregular generated electricity results in a need to store electricity generated at peak t...
