A5036789626- Microbial Community Ecology and Physiology
- Microbial bioremediation and biosurfactants
- Microbial Metabolic Engineering and Bioproduction
- Genomics and Phylogenetic Studies
- Methane Hydrates and Related Phenomena
- Hydrocarbon exploration and reservoir analysis
- Advanced Proteomics Techniques and Applications
- Microbial Fuel Cells and Bioremediation
- Anaerobic Digestion and Biogas Production
- Metabolomics and Mass Spectrometry Studies
- Wastewater Treatment and Nitrogen Removal
- Enzyme Structure and Function
- Protist diversity and phylogeny
- Mine drainage and remediation techniques
- Marine and coastal ecosystems
- Mass Spectrometry Techniques and Applications
- Enhanced Oil Recovery Techniques
- Amino Acid Enzymes and Metabolism
- Photosynthetic Processes and Mechanisms
- Algal biology and biofuel production
- Petroleum Processing and Analysis
- Gut microbiota and health
- Metabolism and Genetic Disorders
- Analytical Chemistry and Chromatography
- Enzyme Catalysis and Immobilization
Carl von Ossietzky Universität Oldenburg
2016-2025
Helmholtz Institute for Functional Marine Biodiversity
2022
Microbiology Society
2017
Max Planck Institute for Marine Microbiology
2007-2016
Max Planck Institute for Molecular Genetics
2003-2013
Humboldt-Universität zu Berlin
2013
Julius Kühn-Institut
2013
National Center for Tumor Diseases
2013
Max Planck Society
2002-2012
In-Q-Tel
2009-2011
Pirellula sp. strain 1 (“ Rhodopirellula baltica ”) is a marine representative of the globally distributed and environmentally important bacterial order Planctomycetales . Here we report complete genome sequence member this independent phylum. With 7.145 megabases, has largest circular sequenced so far. The presence all genes required for heterolactic acid fermentation, key interconversion C1 compounds, 110 sulfatases were unexpected aerobic heterotrophic isolate. Although proteinaceous cell...
A toluene-degrading sulfate-reducing bacterium, strain Tol2, was isolated from marine sediment under strictly anoxic conditions. Toluene toxic if applied directly to the medium at concentrations higher than 0.5 mM. To provide toluene continuously a nontoxic concentration, it supplied in an inert hydrophobic carrier phase. The isolate had oval, sometimes motile cells (1.2 1.4 by 1.2 2.0 microns). doubling time 27 h. completely oxidized CO2, as demonstrated measurement of degradation balance....
ABSTRACT A novel type of denitrifying bacterium (strain HxN1) with the capacity to oxidize n -alkanes anaerobically nitrate as electron acceptor CO 2 formed (1-methylpentyl)succinate (MPS) during growth on -hexane only organic substrate under strict exclusion air. Identification MPS by gas chromatography-mass spectrometry was based comparison a synthetic standard. not anaerobic -hexanoate. Anaerobic [1- 13 C] or d 14 - led 1-methylpentyl side chain in one C atom deuterium atoms,...
ABSTRACT Various alkylbenzenes were depleted during growth of an anaerobic, sulfate-reducing enrichment culture with crude oil as the only source organic substrates. From this culture, two new types mesophilic, rod-shaped bacteria, strains oXyS1 and mXyS1, isolated o -xylene m -xylene, respectively, Sequence analyses 16S rRNA genes revealed that isolates affiliated known completely oxidizing bacteria δ subclass class Proteobacteria . Strain showed highest similarities to Desulfobacterium...
HPr(Ser) kinase is the sensor in a multicomponent phosphorelay system that controls catabolite repression, sugar transport and carbon metabolism Gram‐positive bacteria. Unlike most other protein kinases, it recognizes tertiary structure its target protein, HPr, phosphocarrier of bacterial phosphotransferase transcriptional cofactor controlling phenomenon repression. We have identified gene ( ptsK ) encoding this serine/threonine characterized purified product. Orthologues PtsK been only...
Summary Desulfotalea psychrophila is a marine sulfate‐reducing δ‐proteobacterium that able to grow at in situ temperatures below 0°C. As abundant members of the microbial community permanently cold sediments, D. ‐like bacteria contribute global cycles carbon and sulfur. Here, we describe genome sequence strain LSv54, which consists 3 523 383 bp circular chromosome with 3118 predicted genes two plasmids 121 586 14 663 bp. Analysis gave insight into metabolic properties organism, e.g. presence...
A mesophilic sulfate-reducing enrichment culture growing anaerobically on crude oil was used as a model system to study which nutritional types of bacteria may develop original petroleum constituents in wells, tanks, and pipelines. Chemical analysis hydrocarbons during growth revealed depletion toluene o-xylene within 1 month m-xylene, o-ethyltoluene, m-ethyltoluene, m-propyltoluene, m-isopropyltoluene approximately 2 months. In anaerobic counting series, the highest numbers CFU (6 x 10(6) 8...
The anaerobic biodegradation of naphthalene, an aromatic hydrocarbon in tar and petroleum, has been repeatedly observed environments but scarcely pure cultures. To further explore the relationships physiology naphthalene-degrading microorganisms, sulfate-reducing bacteria (SRB) were enriched from a Mediterranean sediment with added naphthalene. Two strains (NaphS3, NaphS6) oval cells isolated which showed naphthalene-dependent sulfate reduction. According to 16S rRNA gene sequences, both...
Ninety-seven strains of budding bacteria originating from various aquatic habitats and morphologically resembling planctomycetes were investigated taxonomically. Taxonomic differentiation was based on DNA–DNA hybridization, physiological properties chemotaxonomic tests. Nineteen hybridization groups, containing 79 the tested strains, established. Eighteen however, did not fit into any these groups. Rhodopirellula baltica gen. nov., sp. nov. is described, with strain SH 1 T (=IFAM 1310 =DSM...
Summary Microorganisms can degrade saturated hydrocarbons (alkanes) not only under oxic but also anoxic conditions. Three denitrifying isolates (strains HxN1, OcN1, HdN1) able to grow conditions by coupling alkane oxidation CO 2 with NO 3 ‐ reduction N were compared respect their metabolism. Strains HxN1 and which are both Betaproteobacteria , utilized n ‐alkanes from C 6 8 12 respectively. Both activate alkanes anaerobically in a fumarate‐dependent reaction yielding alkylsuccinates, as...
Comparative 16S rRNA gene sequence analysis and major physiological differences indicate two distinct sublineages within the genus Azoarcus: Azoarcus evansii lineage, comprising Azoarcusevansii (type strain KB740T=DSM 6898T=CIP 109473T=NBRC 107771T), Azoarcusbuckelii U120T=DSM 14744T=LMG 26916T), Azoarcusanaerobius LuFRes1T=DSM 12081T=LMG 30943T), Azoarcustolulyticus Tol-4T=ATCC 51758T=CIP 109470T), Azoarcustoluvorans Td21T=ATCC 700604T=DSM 15124T) Azoarcustoluclasticus MF63T=ATCC 700605T),...