A5083410848- Anaerobic Digestion and Biogas Production
- Methane Hydrates and Related Phenomena
- Biofuel production and bioconversion
- Microbial Metabolic Engineering and Bioproduction
- Microbial Community Ecology and Physiology
- Microbial metabolism and enzyme function
- Microbial Fuel Cells and Bioremediation
- Astro and Planetary Science
- Genomics and Phylogenetic Studies
- Planetary Science and Exploration
- Gut microbiota and health
- Bacteriophages and microbial interactions
- Wastewater Treatment and Nitrogen Removal
- Bacterial Genetics and Biotechnology
- Inflammatory Bowel Disease
- Glycosylation and Glycoproteins Research
- Paleontology and Stratigraphy of Fossils
- Supercapacitor Materials and Fabrication
- Geological and Geophysical Studies
- Enzyme function and inhibition
- Origins and Evolution of Life
- Electrochemical sensors and biosensors
- Helicobacter pylori-related gastroenterology studies
- Bacterial biofilms and quorum sensing
- Hydrocarbon exploration and reservoir analysis
University of Vienna
2016-2025
Ecogenomics (Japan)
2019
TU Wien
2011-2014
BOKU University
2013
University of Salzburg
2011
A mesophilic, neutrophilic and aerobic, ammonia-oxidizing archaeon, strain EN76 T , was isolated from garden soil in Vienna (Austria). Cells were irregular cocci with a diameter of 0.6–0.9 µm possessed archaella archaeal pili as cell appendages. Electron microscopy also indicated clearly discernible areas high low electron density, well tubule-like structures. Strain had an S-layer p3 symmetry, so far only reported for members the Sulfolobales . Crenarchaeol major core lipid. The organism...
Abstract Asgard archaea are considered to be the closest known relatives of eukaryotes. Their genomes contain hundreds eukaryotic signature proteins (ESPs), which inspired hypotheses on evolution cell 1–3 . A role ESPs in formation an elaborate cytoskeleton and complex cellular structures has been postulated 4–6 , but never visualized. Here we describe a highly enriched culture ‘ Candidatus Lokiarchaeum ossiferum’, member phylum, thrives anaerobically at 20 °C organic carbon sources. It...
The detection of silica-rich dust particles, as an indication for ongoing hydrothermal activity, and the presence water organic molecules in plume Enceladus, have made Saturn's icy moon a hot spot search potential extraterrestrial life. Methanogenic archaea are among organisms that could potentially thrive under predicted conditions on considering both molecular hydrogen (H
Most archaea divide by binary fission using an FtsZ-based system similar to that of bacteria, but they lack many the divisome components described in model bacterial organisms. Notably, among multiple factors tether FtsZ membrane during cell constriction, only possess SepF-like homologs. Here, we combine structural, cellular, and evolutionary analyses demonstrate SepF is anchor human-associated archaeon Methanobrevibacter smithii. 3D super-resolution microscopy quantitative analysis...
Abstract Dark fermentative biohydrogen (H 2 ) production could become a key technology for providing renewable energy. Until now, the H yield is restricted to 4 moles of per mole glucose, referred as “Thauer limit”. Here we show, that precision design artificial microbial consortia increased 5.6 mol −1 40% higher than Thauer limit. In addition, volumetric rates our defined are superior compared any mono-, co- or multi-culture system reported date. We hope this study be major leap forward in...
Abstract Bioprocesses converting carbon dioxide with molecular hydrogen to methane (CH 4 ) are currently being developed enable a transition renewable energy production system. In this study, we present comprehensive physiological and biotechnological examination of 80 methanogenic archaea (methanogens) quantifying growth CH kinetics at hyperbaric pressures up 50 bar regard media, macro-, micro-nutrient supply, specific genomic features, cell envelope architecture. Our analysis aimed...
Haloarchaea comprise the extremely halophilic branch of phylum Euryarchaeota and they are members prokaryotic domain Archaea. They thrive best in saline habitats with salt concentrations 2 to 5 mol L–1 NaCl, thus under conditions near saturation water. These ancient organisms among oldest species on Earth, characterized by ether-linked lipids cytoplasmic membrane murein-free cell walls. increasingly receiving attention as microbial factories for bioproduction diverse marketable products,...
Soil microbial necromass is an important contributor to soil organic matter (>50%) and it largely composed of residues. In soils, fragmented cell wall residues are mostly found in their polysaccharide forms fungal chitin bacterial peptidoglycan. Microbial biomarkers, particularly amino sugars (AS) such as glucosamine (GlcN) muramic acid (MurA) have been used trace distinguish carbon (C) from non-microbial C. Neutral (NS), the hexose/pentose ratio, also proposed tracers plant polysaccharides...
Abstract Methanogenic archaea (methanogens) possess fascinating metabolic characteristics, such as the ability to fix molecular nitrogen (N 2 ). Methanogens are of biotechnological importance due produce methane (CH 4 ) from hydrogen (H and carbon dioxide (CO excrete proteinogenic amino acids. This study focuses on analyzing link between biological methanogenesis acid excretion under N -fixing conditions. Among five hydrogenotrophic, autotrophic methanogens, Methanothermobacter marburgensis...
In this review, we summarise recent studies that purposefully employed dynamic conditions, such as shifts, pulses, ramps and oscillations, for fast physiological strain characterisation bioprocess development. We show the broad applicability of conditions various objectives can thereby be investigated in a short time. Dynamic processes reveal information about analysed system faster than traditional strategies, like continuous cultivations, process parameters directly linked to platform...