Research group MICRONUC: MICRObial Activity in NUClear waste disposal
The safe storage of nuclear waste in deep geological repositories is a big challenge for our society. Comprehensive understanding of the migration of actinides within the respective host rock and the transport behavior after a possible release from the repository should is urgently needed. Detrimental effects of the radioactive waste on humans and the environment must be avoided over a very long-time period. Microorganisms, which exist in the host rock and backfill material, can survive under extreme conditions over a very long period of time. Their presence therein is of interest because microbial processes can affect the physical and geochemical conditions (e.g. pH, Eh, release of gases) on site. Through their activity, microorganisms can also influence other processes e.g. the corrosion of the container material and migration behavior of actinides, which is caused by the direct or indirect interaction of the microorganisms with the actinides. These processes depend on the type of microbial population, the actinide, and the geochemical circumstances.
The aim of this group is to study the microbial diversity and their activity in the potential host rocks (clay rock, salt rock, crystalline rock) and barrier materials (e.g. bentonite) for nuclear waste disposal and to evaluate their role in respect to the corrosion of container material and the migration of actinides in the geo- and biosphere.
Current research themes
- Investigation of the microbial diversity in potential host rocks and barrier materials relevant for a nuclear waste repository in Germany by culture-independent (e.g. DNA/RNA extraction, 16S rRNA gene analysis,) as well as culture-dependent (enrichment and isolation of microorganisms) methods
- Micro- and mesocosm experiments to investigate the microbial activity in the barrier material depending on different repository relevant conditions and their effect on the corrosion of container material
- Characterization of the interaction mechanisms of microorganisms isolated from the different host rocks and barrier materials with actinides on a molecular level by applying a combination of different spectroscopies (e.g. Time-Resolved Laser-Induced Fluorescence Spectroscopy (TRLFS), Infrared Spectroscopy (IR) and X-ray absorption spectroscopy) and microscopic techniques such as Scanning Electron Microscopy (SEM) in combination with Energy-Dispersive X-ray spectroscopy (EDX).
- Use of meta-omics techniques to investigate metabolic networks and the influence of the biosphere on the migration behavior of radionuclides
Projects
- EURAD-MAGIC(1), NEA/EU-Projekt, Förderkennzeichen: 847593, Laufzeit: 01.06.2019-31.05.2024
- EURAD-ConCorD(2), NEA/EU-Projekt, Förderkennzeichen: 847593, Laufzeit: 01.06.2021-31.05.2024
- UMB-II/BMWi Projekt, Förderkennzeichen: 02E11870B, Laufzeit: 01.01.2021-30.06.2025
Team
Name | Bld./Office | +49 351 260 | |
---|---|---|---|
Cherkouk Dr., Andrea | 801/P356 | 2989 | a.cherkouk![]() |
Kluge, Sindy | 801/P219 | 3194 | s.kluge![]() |
Matschiavelli Dr., Nicole | 801/P318 | 2759 | n.matschiavelli![]() |
Wei Dr., Ting-Shyang | 801/P318 | 2759 | t.wei![]() |
Selected publications:
2023
Europium(III) as luminescence probe for interactions of a sulfate-reducing microorganism with potentially toxic metals
Hilpmann, S.(3); Moll, H.(4); Drobot, B.(5); Vogel, M.; Hübner, R.(6); Stumpf, T.(7); Cherkouk, A.(8)
Related publications
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Data publication: Europium(III) as luminescence probe for interactions of a …
ROBIS: 37168(9) HZDR-primary research data are used by this (Id 37162) publication -
Data publication: Europium(III) as luminescence probe for interactions of a …
RODARE: 2357(10) HZDR-primary research data are used by this (Id 37162) publication
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Ecotoxicology and Environmental Safety 264(2023), 115474
DOI: 10.1016/j.ecoenv.2023.115474(11)
Cited 1 times in Scopus
Presence of uranium(V) during uranium(VI) reduction by Desulfosporosinus hippei DSM 8344T
Hilpmann, S.(12); Roßberg, A.; Steudtner, R.(13); Drobot, B.(14); Hübner, R.(15); Bok, F.(16); Prieur, D.(17); Bauters, S.(18); Kvashnina, K.(19); Stumpf, T.(20); Cherkouk, A.(21)
Related publications
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Data publication: Presence of uranium(V) during uranium(VI) reduction by …
ROBIS: 34974(22) HZDR-primary research data are used by this (Id 34911) publication
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Science of the Total Environment 875(2023), 162593
DOI: 10.1016/j.scitotenv.2023.162593(23)
Cited 6 times in Scopus
2022
Microscopic and spectroscopic bioassociation study of uranium(VI) with an archaeal Halobacterium isolate
Hilpmann, S.(24); Bader, M.; Steudtner, R.(25); Müller, K.(26); Stumpf, T.(27); Cherkouk, A.(28)
Related publications
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Data publication: Microscopic and spectroscopic bioassociation study of …
ROBIS: 33002(29) HZDR-primary research data are used by this (Id 33000) publication
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PLOS ONE 17(2022)1, e0262275
DOI: 10.1371/journal.pone.0262275(30)
Cited 4 times in Scopus
2021
Bentonite alteration in batch reactor experiments with and without fertilizing agents: implications for the disposal of radioactive waste
Podlech, C.; Matschiavelli, N.(31); Peltz, M.; Kluge, S.; Arnold, T.(32); Cherkouk, A.(33); Meleshyn, A.; Grathoff, G.; Warr, L. N.
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Minerals 11(2021), 932
DOI: 10.3390/min11090932(34)
Cited 8 times in Scopus
Multisystem combined uranium resistance mechanisms and bioremediation potential of Stenotrophomonas bentonitica BII-R7: Transcriptomics and microscopic study
Pinel-Cabello, M.; Jroundi, F.; Lopez Fernandez, M.(35); Geffers, R.; Jarek, M.; Jauregui, R.; Link, A.; Vílchez-Vargas, R.; Merroun, M. L.
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Journal of Hazardous Materials 405(2021), 123858
DOI: 10.1016/j.jhazmat.2020.123858(36)
Cited 37 times in Scopus
2020
Presence of Bradyrhizobium sp. under continental conditions in Central Europe
Griebsch, A.; Matschiavelli, N.(37); Lewandowska, S.; Schmidtke, K.
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Agriculture 10(2020)10, 446
DOI: 10.3390/agriculture10100446(38)
Cited 8 times in Scopus
Molecular binding of Eu(III)/Cm(III) by Stenotrophomonas bentonitica and its impact on the safety of future geodisposal of radioactive waste
Ruiz-Fresneda, M. A.; Lopez Fernandez, M.(39); Martinez-Moreno, M. F.; Cherkouk, A.(40); Ju-Nam, Y.; Ojeda, J. J.; Moll, H.(41); Merroun, M. L.
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Environmental Science & Technology 54(2020), 15180-15190
DOI: 10.1021/acs.est.0c02418(42)
Cited 15 times in Scopus
2019
The year-long development of microorganisms in uncompacted Bavarian bentonite slurries at 30 °C and 60 °C
Matschiavelli, N.; Kluge, S.; Podlech, C.; Standhaft, D.; Grathoff, G.; Ikeda-Ohno, A.; Warr, L.; Chukharkina, A.; Arnold, T.; Cherkouk, A.
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Environmental Science & Technology 53(2019)17, 10514-10524
DOI: 10.1021/acs.est.9b02670(43)
Cited 18 times in Scopus
Association of Eu(III) and Cm(III) onto an extremely halophilic archaeon
Bader, M.; Moll, H.(44); Steudtner, R.(45); Lösch, H.; Drobot, B.; Stumpf, T.(46); Cherkouk, A.(47)
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Environmental Science and Pollution Research 26(2019), 9352-9364
DOI: 10.1007/s11356-019-04165-7(48)
Cited 13 times in Scopus
Microbial diversity in an arid, naturally saline environment
Bachran, M.; Kluge, S.; Lopez-Fernandez, M.; Cherkouk, A.
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Microbial Ecology 78(2019)2, 494-505
DOI: 10.1007/s00248-018-1301-2(49)
Cited 31 times in Scopus
2018
Impact of Haloarchaea on speciation of uranium – a multi-spectroscopic approach
Bader, M.; Rossberg, A.; Steudtner, R.; Drobot, B.; Großmann, K.; Schmidt, M.; Musat, N.; Stumpf, T.; Ikeda-Ohno, A.; Cherkouk, A.
Involved research facilities
- Rossendorf Beamline at ESRF DOI: 10.1107/S1600577520014265(50)
Related publications
- DOI: 10.1107/S1600577520014265(51) is cited by this (Id 28021) publication
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Environmental Science and Technology 52(2018)21, 12895-12904
DOI: 10.1021/acs.est.8b02667(52)
Cited 16 times in Scopus
Comparative analysis of uranium bioassociation with halophilic bacteria and archaea
Bader, M.; Müller, K.; Foerstendorf, H.; Schmidt, M.; Simmons, K.; Swanson, J. S.; Reed, D. T.; Stumpf, T.; Cherkouk, A.
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PLOS ONE 13(2018)1, e0190953
DOI: 10.1371/journal.pone.0190953(53)
Cited 27 times in Scopus
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https://www.hzdr.de/db/Cms?pOid=44864