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378 results on '"Lueders, Tillmann"'

51. Evaluation of PCR amplification bias by terminal restriction fragment length polymorphism analysis of small-subunit rRNA and mcrA genes by using defined template mixtures of methanogenic pure cultures and soil DNA extracts

Author

Lueders, Tillmann and Friedrich, Michael W.

Subjects
Methanobacteriaceae -- Genetic aspects, Genetic polymorphisms -- Analysis, Polymerase chain reaction -- Methods, Biological sciences
Abstract

Research addresses potential bias in the polymerase chain reaction and their influence on terminal restriction fragment length polymorphism fingerprinting of methanogenic bacterial population structure in different habitats using small-subunit rRNA and the methyl-coenzyme M reductase genes as probes. Data reveal that small-subunit rRNA analysis is reproducible, whereas M reductase-based analysis is biased.

Published
2003

52. Effects of amendment with ferrihydrite and gypsum on the structure and activity of methanogenic populations in rice field soil

Author

Lueders, Tillmann and Friedrich, Michael W.

Subjects
Methanobacteriaceae -- Research, Rice -- Soils, Methane -- Research, Biological sciences
Abstract

Different methanogenic bacteria are stimulated or inhibited when rice paddy soils are supplemented with ferrihydrite or gypsum. These electron acceptors are added to stimulate bacteria that would compete with methanogens. This is done to reduce methane emissions, which contribute to the greenhouse effect.

Published
2002

55. Axial differences in community structure of Crenarchaeota and Euryarchaeota in the highly compartmentalized gut of the soil-feeding termite Cubitermes orthognathus

Author

Friedrich, Michael W., Schmitt-Wagner, Dirk, Lueders, Tillmann, and Brune, Andreas

Subjects
Termites -- Research, Intestines -- Microbiology, Methanobacteriaceae -- Research, Biological sciences
Abstract

The first comprehensive analysis of the microbial community inside the gut of the termite Cubitermes orthognathus is described based on clonal analysis and terminal restriction fragment length polymorphism fingerprinting. This is also the first report of Crenarchaeota occurring in an arthropod intestinal tract.

Published
2001

59. Archaeal population dynamics during sequential reduction processes in rice field soil

Author

Lueders, Tillmann and Friedrich, Michael

Subjects
Microbiological research -- Analysis, Archaeabacteria -- Research, Ribosomal RNA -- Research, DNA testing -- Research, Nitrates -- Research, Sulfates -- Research, Methane -- Research, Biological sciences
Abstract

Research has been conducted on the Archaea population dynamics after rice field soil flooding. The results of the molecular sequence retrieval and small-subunit rRNA gene fingerprinting are discussed.

Published
2000

78. Effects of warming and drought on potential N2O emissions and denitrifying bacteria abundance in grasslands with different land-use

Author

Keil, Daniel, Niklaus, Pascal A., von Riedmatten, Lars R., Boeddinghaus, Runa S., Dormann, Carsten F., Scherer-Lorenzen, Michael, Kandeler, Ellen, Marhan, Sven, and Lueders, Tillmann

Subjects
food and beverages, complex mixtures
Abstract

Increased warming in spring and prolonged summer drought may alter soil microbial denitrification. We measured potential denitrification activity and denitrifier marker gene abundances (nirK, nirS, nosZ) in grasslands soils in three geographic regions characterized by site-specific land-use indices (LUI) after warming in spring, at an intermediate sampling and after summer drought. Potential denitrification was significantly increased by warming, but did not persist over the intermediate sampling. At the intermediate sampling, the relevance of grassland land-use intensity was reflected by increased potential N2O production at sites with higher LUI. Abundances of total bacteria did not respond to experimental warming or drought treatments, displaying resilience to minor and short-term effects of climate change. In contrast, nirS- and nirK-type denitrifiers were more influenced by drought in combination with LUI and pH, while the nosZ abundance responded to the summer drought manipulation. Land-use was a strong driver for potential denitrification as grasslands with higher LUI also had greater potentials for N2O emissions. We conclude that both warming and drought affected the denitrifying communities and the potential denitrification in grassland soils. However, these effects are overruled by regional and site-specific differences in soil chemical and physical properties which are also related to grassland land-use intensity

Published
2017

83. Depth-resolved quantification of anaerobic toluene degraders and aquifer microbial community patterns in distinct redox zones of a tar oil contaminant plume

Author

Windrel, Christian, Annesar, Bettina, Griebler, Christian, Meckenstock, Rainer U., and Lueders, Tillmann

Subjects
Aquifers -- Research, Oxidation-reduction reaction -- Analysis, Sulfates -- Chemical properties, Xylene -- Chemical properties, Biological sciences
Abstract

The characterization of microbial community distribution across a high-resolution depth profile of a tar oil-impacted aquifer where benzene, toluene, ethylbenzene and xylene (BTEX) degradation has depended mainly on sulfate reduction is described. The results have shown that the distribution of specific aquifer microbiota and degradation processes in contaminated aquifers are tightly coupled, which are used for the assessment of natural attenuation based on intrinsic aquifer microbiota.

Published
2008

87. Stable-isotope probing of microorganisms thriving at thermodynamic limits: syntrophic propionate oxidation in flooded soil

Author

Lueders, Tillmann, Pommerenke, Bianca, and Friedrich, Michael W.

Subjects
Methanobacteriaceae -- Research, Anaerobiosis -- Research, Thermodynamics -- Research, Biological sciences
Abstract

The first identification of active anaerobic microorganisms by stable-isotope probing (SIP), which are involved in the thermodyanimically unfavorable syntrophic oxidation of propionate under methanogenic conditions is presented. Three distinct lineages of syntrophic propionate oxidizers (Syntrophobacter, Smithella, and Pelotomaculum spp.) were identified to operate simultaneously in anoxic rice field soil slurries and their hydrogenotrophic and acetotrophic methanogenic partner organisms were also detected by assimilation of labeled intermediates.

Published
2004

91. Resource Partitioning between Bacteria, Fungi, and Protists in the Detritusphere of an Agricultural Soil

Author

Kramer, Susanne, primary, Dibbern, Dörte, additional, Moll, Julia, additional, Huenninghaus, Maike, additional, Koller, Robert, additional, Krueger, Dirk, additional, Marhan, Sven, additional, Urich, Tim, additional, Wubet, Tesfaye, additional, Bonkowski, Michael, additional, Buscot, François, additional, Lueders, Tillmann, additional, and Kandeler, Ellen, additional

Published
2016
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96. Anaerobic Microbial Degradation of Hydrocarbons: From Enzymatic Reactions to the Environment

Author

Rabus, Ralf, primary, Boll, Matthias, additional, Heider, Johann, additional, Meckenstock, Rainer U., additional, Buckel, Wolfgang, additional, Einsle, Oliver, additional, Ermler, Ulrich, additional, Golding, Bernard T., additional, Gunsalus, Robert P., additional, Kroneck, Peter M.H., additional, Krüger, Martin, additional, Lueders, Tillmann, additional, Martins, Berta M., additional, Musat, Florin, additional, Richnow, Hans H., additional, Schink, Bernhard, additional, Seifert, Jana, additional, Szaleniec, Maciej, additional, Treude, Tina, additional, Ullmann, G. Matthias, additional, Vogt, Carsten, additional, von Bergen, Martin, additional, and Wilkes, Heinz, additional

Published
2016
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100. Biodegradation: Updating the Concepts of Control for Microbial Cleanup in Contaminated Aquifers

Author

Meckenstock, Rainer U., primary, Elsner, Martin, additional, Griebler, Christian, additional, Lueders, Tillmann, additional, Stumpp, Christine, additional, Aamand, Jens, additional, Agathos, Spiros N., additional, Albrechtsen, Hans-Jørgen, additional, Bastiaens, Leen, additional, Bjerg, Poul L., additional, Boon, Nico, additional, Dejonghe, Winnie, additional, Huang, Wei E., additional, Schmidt, Susanne I., additional, Smolders, Erik, additional, Sørensen, Sebastian R., additional, Springael, Dirk, additional, and van Breukelen, Boris M., additional

Published
2015
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