Climatic and land use-specific changes related to the global change alters the composition of microbial soil communities in terrestrial ecosystems. A change in the community structure is generally accompanied with a modified combination of microbial traits, which thereby affect microbially driven processes (decomposition, nutrient cycling) in the soil. The structural and functional adaptation to changed environmental conditions plays an essential role for ecosystem resistance and resilience.
In our group we investigate the structural and functional changes of soil microbial community and the associated ecosystem processes in response to changes in climate, as well as land use and land management regimes in experimental platforms at the field level. The analyses are carried out on the one hand at the level of the whole community (ARISA, soil enzymes), but also at the level of traits of individual species or genera (P and K solubilization; siderophore-, IAA, and ACC production). Selected isolates are examined in associated pot experiments on their plant growth promoting effects under abiotic and biotic stress.
Projects / Research Platforms
Platform: Global Change Experimental Facility
The Global Change Experimental Facility (GCEF) is an experimental platform for interdisciplinary research on the consequences of climate change on ecosystem processes in different land-use types on large field plots.
"Increasing the stress resistance of agricultural ecosystems through plant growth promoting rhizobacteria (PGPR) using winter wheat (Triticum L.) production as a case study" Funded by DBU (20015/391) | Project term: 2016 - 2019 | PhD Student: Claudia Breitkreuz Supervision by Dr. Mika Tarkka and Dr. Thomas Reitz
"Impact of climate change on arbuscular mycorrhizal fungal communities under different land-use types" Funded by the Ministry of Higher Education Egypt | Project term: 2017 - 2021 | PhD Student: Sara Wahdan Supervision by Dr. Thomas Reitz
Platform: Static Fertilization Experiment
The “Static Fertilization Experiment” (Bad Lauchstädt, Saxony-Anhalt, Germany) was established in 1902 and is one of the oldest agricultural field experiments worldwide. It aims to provide comprehensive understanding on the effects of long-term mineral and organic fertilization on yield and quality of crops as well as on soil fertility and sustainability.
Francioli, D., Schulz, E., Buscot, F., Reitz, T., (2017):
Dynamics of soil bacterial communities over a vegetation season relate to both soil nutrient status and plant growth phenology Microb. Ecol. Volltext (URL)
Francioli, D., Schulz, E., Lentendu, G., Wubet, T., Buscot, F., Reitz, T., (2016):
Mineral vs. organic amendments: microbial community structure, activity and abundance of agriculturally relevant microbes are driven by long-term fertilization strategies Front. Microbiol.7 , art. 1446 Volltext (URL)
Francioli, D., Schulz, E., Purahong, W., Buscot, F., Reitz, T., (2016):
Reinoculation elucidates mechanisms of bacterial community assembly in soil and reveals undetected microbes Biol. Fert. Soils52 (8), 1073 - 1083 Volltext (URL)
Purahong, W., Stempfhuber, B., Lentendu, G., Francioli, D., Reitz, T., Buscot, F., Schloter, M., Krüger, D., (2015):
Influence of commonly used primer systems on automated ribosomal intergenic spacer analysis of bacterial communities in environmental samples PLOS One10 (3), e0118967 Volltext (URL)
Reitz, T., Rossberg, A., Barkleit, A., Selenska-Pobell, S., Merroun, M.L., (2015):
Spectroscopic study on uranyl carboxylate complexes formed at the surface layer of Sulfolobus acidocaldarius Dalton Trans.44 (6), 2684 - 2692 Volltext (URL)
Morcillo, F., Gonzalez-Munoz, M.T., Reitz, T., Romero-Gonzalez, M.E., Arias, J.M., Merroun, M.L., (2014):
Biosorption and Biomineralization of U(VI) by the marine bacterium Idiomarina loihiensis MAH1: effect of background electrolyte and pH PLOS One9 (3), e91305 Volltext (URL)
Reitz, T., Rossberg, A., Barkleit, A., Selenska-Pobell, S., Merroun, M.L., (2014):
Decrease of U(VI) immobilization capability of the facultative anaerobic strain Paenibacillus sp. JG-TB8 under anoxic conditions due to strongly reduced phosphatase activity PLOS One9 (8), e102447 Volltext (URL)
Bartolomé, J., Bartolomé, F., García, L.M., Figueroa, A.I., Repollés, A., Martínez-Pérez, M.J., Luis, F., Magén, C., Selenska-Pobell, S., Pobell, F., Reitz, T., Schönemann, R., Herrmannsdörfer, T., Merroun, M., Geissler, A., Wilhelm, F., Rogalev, A., (2012):
Strong paramagnetism of gold nanoparticles deposited on a Sulfolobus acidocaldarius S layer Phys. Rev. Lett.109 (24), 247203 Volltext (URL)
Merroun, M.L., Nedelkova, M., Ojeda, J., Reitz, T., López Fernández, M., Arias, J.M., Romero-González, M., Selenska-Pobell, S., (2011):
Bio-precipitation of uranium by two bacterial isolates recovered from extreme environments as estimated by potentiometric titration, TEM and X-ray absorption spectroscopic analyses J. Hazard. Mater.197 , 1 - 10 Volltext (URL)
Reitz, T., Merroun, M.L., Rossberg, A., Steudtner, R., Selenska-Pobell, S., (2011):
Bioaccumulation of U(VI) by Sulfolobus acidocaldarius under moderate acidic conditions Radiochim. Acta99 (9), 543 - 553 Volltext (URL)
Selenska-Pobell, S., Reitz, T., Schönemann, R., Herrmansdörfer, T., Merroun, M.L., Geißler, A., Bartolomé, J., Bartolomé, F., García, L.M., Wilhelm, F., Rogalev, A., (2011):
Magnetic Au nanoparticles on archaeal S-Layer ghosts as templates Nanomaterials and Nanotechnology1 (2), 8 - 16 Volltext (URL)