TY - GEN A1 - Martienssen, Marion A1 - Gründl, Marlies T1 - Einsatz trägerfixierter Mikroorganismen zur Eliminierung von PAH und Mineralölkohlenwasserstoffen aus kontaminierten Böden T2 - Chemie-Ingenieur-Technik Y1 - 1999 SN - 0009-286X VL - 71 IS - 6 SP - 624 EP - 628 ER - TY - PAT A1 - Martienssen, Marion T1 - Verfahren zur mechanisch-mikribiologischen Reinigung kontaminierter Böden Y1 - 1999 ER - TY - GEN A1 - Jank, M. A1 - Köser, H. A1 - Lücking, F. A1 - Martienssen, Marion A1 - Wittich, S. T1 - Decolorization and degradation of Erioglaucine (Acid Blue 9) dye in wastewater Y1 - 1998 ER - TY - GEN A1 - Martienssen, Marion A1 - Budahn, G. A1 - Gründl, Marlies T1 - Mikroorganismen im Waschprozeß T2 - UmweltMagazin Y1 - 1998 SN - 0173-363X VL - 27 IS - 9 SP - 42 EP - 43 ER - TY - GEN A1 - Martienssen, Marion A1 - Simon, J. A1 - Schulze, R. T1 - Untersuchungen zum Einsatz von aufbereiteter Kfz-Kühlerflüssigkeit als organische C-Quelle bei der biologischen Sickerwasserbehandlung T2 - Korrespondenz Abwasser Y1 - 1997 SN - 0341-1540 VL - 44 IS - 9 SP - 1622 EP - 1627 ER - TY - GEN A1 - Martienssen, Marion A1 - Schübb, S. T1 - Der Einfluß geladener Oberflächen bei der Anreicherung und Selektion von Mikroorganismen für den Abbau methylierter Phenole T2 - GWF : Wasser, Abwasser Y1 - 1998 VL - 139 IS - 4 SP - 214 EP - 219 ER - TY - GEN A1 - Martienssen, Marion A1 - Simon, J. T1 - Reinigung von Abwasser aus Emulsionsspaltanlagen durch kombinierten Einsatz von biologischer Behandlung und chemischer Naßoxidation T2 - Korespondenz Abwasser Y1 - 1997 SN - 0341-1540 VL - 44 IS - 1 SP - 110 EP - 114 ER - TY - GEN A1 - Becker, M. A1 - Martienssen, Marion A1 - Fuhrmann, Bernd A1 - Spohn, U. T1 - Analysing nitrogen and sulphide elimination from leachate by coulometric continuous flow titration Y1 - 1997 ER - TY - GEN A1 - Martienssen, Marion A1 - Schöps, R. T1 - Biological treatment of leachate from solid waste landfill sites - Alterations in the bacterial community during the denitrification process Y1 - 1997 ER - TY - GEN A1 - Martienssen, Marion A1 - Simon, J. T1 - Effect of activated carbon on the biological treatment of oil-water emulsions Y1 - 1996 ER - TY - CHAP A1 - Becker, M. A1 - Spohn, U. A1 - Fuhrmann, Bernd A1 - Martienssen, Marion T1 - Überwachung der Nitrifikation von Deponiesickerwässern durch 223 computergesteuerte coulometrische Durchflußtitrationmitbiamperometrischer oder chemiluminometrischer Endpunktindikation T2 - Technische Systeme für die Biotechnologie und Umwelt, 7. Heiligenstädter Kolloquium, 7.11. - 9.11. 1994 Y1 - 1994 SP - 223 EP - 231 CY - Heiligenstadt ER - TY - CHAP A1 - Martienssen, Marion T1 - Biological treatment of leachate from solid waste landfill sites - the influence of the activated sludge composition to the denitrification process T2 - Biochemical engineering 3, Third International Symposium on Biochemical Engineering, Stuttgart, Germany, March 6 - 8, 1995 Y1 - 1995 SN - 3-00-000360-6 SP - 135 EP - 137 PB - Universität CY - Stuttgart ER - TY - GEN A1 - Martienssen, Marion A1 - Schulze, R. A1 - Simon, J. T1 - Capacities and limits of three different technologies for the biological treatment of leachate from solid waste landfill sites Y1 - 1995 ER - TY - PAT A1 - Martienssen, Marion A1 - Schulze, Rolf A1 - Simon, Jürgen T1 - Verfahren zur Stabilisierung der Denitrifikation in biologischen Kläranlagen durch verbrauchte Kfz-Kühlerflüssigkeit Y1 - 1995 ER - TY - CHAP A1 - Martienssen, Marion A1 - Schulze, R. A1 - Heinke, M. A1 - Pohl, W. A1 - Simon, J. T1 - Leistungen und Leistungsgrenzen unterschiedlicher biotechnologischer Verfahren für die Behandlung von Deponiesickerwasser T2 - 11. Jahrestagung der Biotechnologen, Nürnberg, 24. bis 26. Mai 1993, Kurzfassungen Y1 - 1993 SP - 43 EP - 44 PB - DECHEMA CY - Frankfurt am Main ER - TY - GEN A1 - Kutscherra, M. A1 - Jost, W. A1 - Schlee, D. T1 - Isoenzymes of Nitrite Reduktase in higher plants-occurrence, purification and alteration during ontogenesis Y1 - 1987 ER - TY - THES A1 - Engelbrecht, Steffen T1 - Mikrobielle Stickstoffelimination mit kombinierter partieller Nitrifikation / Anammox (PN/A) in membranbelüfteten hochsalinen und Niedrigtemperatur-Festbettreaktoren N2 - Durch anthropogene Aktivität hat sich der Nährstoffeintrag in die Umwelt stark erhöht. Die Hauptquellen sind die Landwirtschaft, kommunales und industrielles Abwasser. Erhöhte Stickstofffrachten haben einen starken Einfluss auf den Stickstoffkreislauf. Das Überangebot an Stickstoff führt zu Eutrophierung in Gewässern und somit zu einem weniger diversen, instabileren Ökosystem. Die Stickstoffeliminierung aus Abwässern ist essentiell für den Schutz der Ökosysteme. Das etablierte System der Nitrifikation/Denitrifikation ist aufgrund des hohen Sauerstoffbedarfs sehr energie- und somit auch kostenintensiv. Der Anammox-Prozess (anaerobe Ammonium Oxidation) ist eine potentielle Alternative zur konventionellen Stickstoffelimination. Anammox-Bakterien nutzen Ammonium und Nitrit als Elektronenakzeptor. Durch Nutzung der partiellen Nitrifikation in Kombination mit Anammox (PN/A) kann bis zu 60 % der Belüftungsenergie eingespart werden. Trotz Erfolgen in der Teilstrombehandlung ist der Prozess noch nicht erfolgreich in der Hauptstrombehandlung eingesetzt worden. Die größten Herausforderungen sind die niedrigen Temperaturen, geringe Zulaufkonzentrationen und hohe Konzentrationen organischen Kohlenstoffs. Die vorliegende Arbeit konnte die Wirksamkeit von membranbelüfteten Biofilm Reaktoren unter Verwendung von synthetischem Abwasser bei niedrigen Temperaturen (18 - 8 °C) belegen. Die Innovation in diesem System ist die räumliche Trennung von nitrifizierenden Bakterien und Anammox Bakterien. Die regelmäßige mechanische Entfernung des Nitrifikanten-Biofilms ermöglichte einen langzeitstabilen Reaktorbetrieb. Diese Reaktorkonfiguration konnte auch erfolgreich für hochsaline Abwässer (5 -30 g NaCl*L-1) bei einer Reaktortemperatur von 30 °C und auch unter Zugabe von TOC (40-100 mg TOC*L-1) genutzt werden. Weiterhin wurden Untersuchungen zur Aktivität von salzadaptierter Anammox-Biomasse und nicht adaptierter Biomasse in einem Bereich von 0 bis 50 g NaCl*L-1 durchgeführt. Bei Konzentrationen unter 30 g NaCl*L-1 konnten keine signifikanten Unterschiede im Abbauverhalten festgestellt werden. Allerdings war adaptierte Biomasse bei höheren Salzkonzentrationen konkurrenzstärker. Außerdem wurden Langzeitlagerungsversuche durchgeführt. Die Lagerungsbedingungen variierten in der Lagerungstemperatur, im Redoxpuffer und der Nährstoffversorgung. Nach 106 Tagen bei 4 °C konnte die Anammox-Biomasse noch 91 % ihrer ursprünglichen Aktivität erhalten. Somit konnte eine einfache und kostengünstige Lagerungsmethode für Anammo-Bakterien entwickelt werden. Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-opus4-48848 CY - Cottbus ER - TY - GEN A1 - Rathsack, Kristina A1 - Reitner, Joachim A1 - Stackebrandt, E. A1 - Tindall, B. J. T1 - Reclassification of Aurantimonas altamirensis (Jurado et al. 2006), Aurantimonas ureilytica (Weon et al. 2007) and Aurantimonas frigidaquae (Kim et al. 2008) as members of a new genus, Aureimonas gen. nov., as Aureimonas altamirensis gen. nov., comb. nov., Aureimonas ureilytica comb. nov. and Aureimonas frigidaquae comb. nov., and emended descriptions of the genera Aurantimonas and Fulvimarina T2 - International journal of systematic and evolutionary microbiology : IJSEM Y1 - 2011 SN - 1466-5034 VL - 61 IS - 11 SP - 2722 EP - 2728 ER - TY - GEN A1 - Rathsack, Kristina A1 - Rathsack, Udo T1 - Besiedlung von Wasserversorgungsnetzen durch Asseln und andere Invertebraten : Mess- und Beobachtungsverfahren T2 - GWF : Wasser, Abwasser Y1 - 2011 SN - 0016-3651 VL - 152 IS - 4 SP - 390 EP - 396 ER - TY - CHAP A1 - Rathsack, Kristina A1 - Quéric, Nadia-Valérie A1 - Reitner, Joachim ED - Reitner, Joachim T1 - Deep biosphere of the oceanic deep sea T2 - Encyclopedia of Geobiology Y1 - 2011 SN - 978-1-4020-9211-4 SP - 317 EP - 322 PB - Springer CY - Dordrecht ER - TY - PAT A1 - Martienssen, Marion T1 - Verfahren zur Verringerung der Bildung von Biofilmen und Schwefelwassestoff in Abwasserkanälen Y1 - 2011 ER - TY - GEN A1 - Rathsack, Kristina T1 - Besiedlung von Wasserversorgungssystemen durch Invertebraten T2 - Energie-, Wasser-Praxis Y1 - 2012 SN - 1436-6134 IS - 6 SP - 28 EP - 33 ER - TY - CHAP A1 - Krieg, Ronald A1 - Martienssen, Marion T1 - Einfluss von Tränkezusätzen auf die Wasseraufnahme bei Kaninchen und die Biofilmbildung T2 - 17. Internationale Tagung über Haltung und Krankheiten der Kaninchen, Pelztiere und Heimtiere T2 - 17. Symposium on Housing and Deaseases of Rabbits, Furproviding Animals and Pet Animals Y1 - 2011 SN - 978-3-8359-5809-8 SP - 178 EP - 189 PB - VVB Laufersweiler Verlag ER - TY - GEN A1 - Martienssen, Marion A1 - Schulze, Ralf T1 - Lanzeituntersuchungen zum Einsatz von Rekultivierungs-/Methanoxidationsschichten auf Hausmülldeponien T2 - Müll und Abfall Y1 - 2012 SN - 1863-9763 SN - 0027-2957 VL - 44 IS - 4 SP - 202 EP - 209 ER - TY - GEN A1 - Kuhn, Ramona A1 - Benndorf, Dirk A1 - Rapp, Erdmann A1 - Reichl, Udo A1 - Palese, Luigi Leonardo A1 - Pollice, Alfieri T1 - Metaproteome analysis of sewage sludge from membrane bioreactors T2 - Proteomics N2 - Microbial dynamics and enzymatic activities of activated sludge processes are not completely understood yet. A better understanding about the biology is indispensable for further process optimization. Since proteins play a key role as catalysts in sludge processes, a protocol for protein extraction and analysis by 2-D PAGE was established. It is based on phenol extraction of alkaline extracts and on a subsequent precipitation with ammonium sulphate. 2-D protein patterns obtained from different sludges collected from membrane bioreactors showed – besides common spots – significant differences. Selected proteins were identified with nano- HPLC-ESI-MS/MS. All membrane biological reactor (MBR) sludge samples investigated in this study contained elastase 3A, which implies that this human serine protease is a significant constituent of municipal wastewater. Although the identification of proteins from ammonia-oxidizing bacterium Nitrosomonas europaea was expected, the detection of a protein with homology to the marine bacterium Saprospira grandis in MBR1 was surprising. KW - De novo sequencing KW - Membrane bioreactor KW - metaproteomics KW - microbial communities KW - Microbiology KW - Protein extraction Y1 - 2011 U6 - https://doi.org/10.1002/pmic.201000590 SN - 1615-9861 VL - 11 IS - 13 SP - 2738 EP - 2744 ER - TY - CHAP A1 - Schirmer, Mario A1 - Reinstorf, Frido A1 - Leschik, Sebastian A1 - Musolff, Andreas A1 - Krieg, Ronald A1 - Osenbrück, Karsten A1 - Martienssen, Marion A1 - Schirmer, Kirsten A1 - Strauch, Gerhard ED - Fatta-Kassinos, Despo T1 - Transport and Fate of Xenobiotics in the Urban Water Cycle: Studies in Halle/Saale and Leipzig (Germany) T2 - Xenobiotics in the Urban Water Cycle : mass flows, environmental processes, mitigation and treatment strategies Y1 - 2010 SN - 978-90-481-3508-0 U6 - https://doi.org/10.1007/978-90-481-3509-7_12 SP - 213 EP - 226 PB - Springer CY - Dordrecht [u.a.] ER - TY - GEN A1 - Martienssen, Marion A1 - Reichel, O. A1 - Schirmer, M. T1 - Use of surfactants to improve the biological degradability of petroleum hydrocarbons Y1 - 2007 ER - TY - CHAP A1 - Martienssen, Marion ED - Bastiaens, Leen T1 - Comparison of different technologies for the treatment of MTBE contaminated groundwater T2 - MTBE and other fuel oxygenates, Proceedings of the 3rd European conference, Antwerp, 7-8 June, 2007 Y1 - 2007 SP - 57 EP - 62 PB - VITO CY - Mol ER - TY - CHAP A1 - Beckmann, Annika A1 - Zittwitz, Mark A1 - Gerhardt, Matthias A1 - Martienssen, Marion A1 - Geistlinger, Helmut A1 - Schirmer, Mario T1 - Modellgestützte Feedback-Steuerung für modulare in-situ Gaswände T2 - Behandlungstechnologien für bergbaubeeinflusste Wässer/GIS - Geowissenschaftliche Anwendungen und Entwicklungen, Proceedingsband zu den Workshops am Geologischen Institut der TU Bergakademie Freiberg am 17. Juni 2005 Y1 - 2005 SP - 9 EP - 13 PB - Inst. für Geologie CY - Freiberg ER - TY - CHAP A1 - Böllmann, Jörg A1 - Scholler, Markus T1 - Studies in the life cycle of Puccinia glechomatis T2 - The 7th International Mycological Congress, Oslo, 2002 : Book of abstracts Y1 - 2002 UR - http://www.ima-mycology.org/sites/default/files/downloads/imc7_book_of_abstracts.pdf SP - S. 281 PB - Congress Secretariat CY - Oslo ER - TY - GEN A1 - Kuhn, Ramona A1 - Jensch, Robert A1 - Fischer, Thomas A1 - Keuler, Klaus A1 - Bryant, Isaac Mbir A1 - Martienssen, Marion T1 - Sunlight Degradation of the Aminophosphonate Diethylenetriamine Penta-(Methylenephosphonic Acid) T2 - Solar N2 - Aminophosphonate diethylenetriamine penta(methylenephosphonic acid) (DTPMP) is a scale inhibitor commonly used in several industries. DTPMP is suspected to cause anthropogenic pollution through discharge into the aquatic environment. DTPMP is assumed to be degraded by sunlight radiation. We recently predicted a preliminary degradation pathway of DTPMP applyingUV treatment. Currently, we have not yet evidenced that DTPMP shows the same degradation pattern with natural sunlight. One major reason leads to the fact that the light spectrum emitted by UV lamps does not completely represent the natural sunlight spectrum, and the emitted UVB and UVA irradiation flux is much higher than for solar light. For that reason, the degradation pattern and kinetics might be different between artificial UV treatment and natural sunlight treatment. Here, we investigated whether DTPMP is degradable under natural sunlight radiation, and whether the degradation mechanisms determined through UV treatment are transferable to sunlight. We investigated five different treatment conditions, i.e., DTPMP degradation in direct or diffuse sunlight, in diffuse sunlight with addition of Ca2+ or Mg2+, and in diffuse sunlight with local TW. Our experiment was carried out from March 2021 to October 2021. We performed LC/MS analyses and measured the release of o-PO4 3  . DTPMP was degraded with all five treatment conditions. The fastest DTPMP degradation occurred in direct and diffuse sunlight without addition of bivalent cations. The addition of Ca2+ and Mg2+ resulted in inhibited degradation. Similar effects occurred for sunlight treatment with local TW. We evidenced different degradation mechanisms for DTPMP depending on the presence of alkaline earth metals as we previously proposed for UV-treated DTPMP. However, both degradation mechanisms of DTPMP belong to the same degradation pathway determined with UV treatment. Therefore, we conclude that DTPMP undergoes a similar degradation pathway in sunlight as compared to UV light. KW - Photochemistry Y1 - 2022 U6 - https://doi.org/10.3390/solar2020009 SN - 2673-9941 VL - 2 IS - 2 SP - 141 EP - 157 ER - TY - GEN A1 - Okofo, Louis Boansi A1 - Bedu-Addo, Kenneth A1 - Martienssen, Marion T1 - Characterization of groundwater in the "Tamnean" Plutonic Suiteaquifers unsing hydrogeochemical and multivariate statistical evidence:a study in the Garu-Tempane District, Upper East Region of Ghana T2 - Applied Water Science Y1 - 2022 U6 - https://doi.org/10.1007/s13201-021-01559-2 SN - 2190-5495 VL - 12 IS - 2 ER - TY - GEN A1 - Rathsack, Kristina T1 - Unerwünschte Bewohner : Wasserasseln und andere Makroorganismen in Trinkwasserversorgungsnetzen T2 - IKZ-Fachplaner : Magazin für Planer, Berater und Entscheider der Gebäudetechnik Y1 - 2012 VL - 7 IS - 11 SP - 8 EP - 12 ER - TY - CHAP A1 - Böllmann, Jörg A1 - Martienssen, Marion A1 - Nixdorf, Brigitte T1 - Stickstoffumsätze in unterschiedlichen Gewässertypen Berlin/Brandenburgs, Teil 1: Zellzahlen von Nitrifikanten und Denitrifikanten T2 - Erweiterte Zusammenfassung der Jahrestagung der DGL 2011 in Weihenstephan KW - Nitrifikation KW - Stoffumsätze Y1 - 2012 SN - 978-3-9813095-2-2 SP - 234 EP - 238 PB - Eigenverlag der DGL CY - Hardegsen ER - TY - GEN A1 - Martienssen, Marion A1 - Schulze, Rolf T1 - Langzeituntersuchungen zum Einsatz von Rekultivierungs-/Methanoxidationsschichten auf Hausmülldeponien T2 - Müll und Abfall Y1 - 2012 SN - 1863-9763 SN - 0027-2957 VL - 44 IS - 4 SP - 202 EP - 209 ER - TY - THES A1 - Ebert, Sebastian T1 - Potentiale und Grenzen eines neuen Verfahrens zum linienhaften Gasmonitoring in Böden Y1 - 2012 CY - Cottbus ER - TY - GEN A1 - Sarpong, Daniella A1 - Amankwaa, Gordon A1 - Martienssen, Marion A1 - Burkhardt, Marko T1 - A novel biomethane (BMP) and somposting (CMP) potential framework for determining biogas and composting potential of urban organic waste T2 - Environmental Technology Y1 - 2022 U6 - https://doi.org/10.1080/09593330.2022.2145241 SN - 1479-487X VL - 45(2024) IS - 8 SP - 1471 EP - 1482 ER - TY - GEN A1 - Riedel, Ramona A1 - Commichau, Fabian M. A1 - Benndorf, Dirk A1 - Hertel, Robert A1 - Holzer, Katharina A1 - Mardoukhi, Mohammad Saba Yousef A1 - Noack, Laura A1 - Martienssen, Marion T1 - Biodegradation of selected aminophosphonates by the bacterial isolate Ochrobactrum sp. BTU1 T2 - Microbial Research N2 - Aminophosphonates, like glyphosate (GS) or metal chelators such as ethylenediaminetetra(methylenephosphonic acid) (EDTMP), are released on a large scale worldwide. Here, we have characterized a bacterial strain capable of degrading synthetic aminophosphonates. The strain was isolated from LC/MS standard solution. Genome sequencing indicated that the strain belongs to the genus Ochrobactrum. Whole-genome classification using pyANI software to compute a pairwise ANI and other metrics between Brucella assemblies and Ochrobactrum contigs revealed that the bacterial strain is designated as Ochrobactrum sp. BTU1. Degradation batch tests with Ochrobactrum sp. BTU1 and the selected aminophosphonates GS, EDTMP, aminomethylphosphonic acid (AMPA), iminodi(methylene-phosphonic) (IDMP) and ethylaminobis(methylenephosphonic) acid (EABMP) showed that the strain can use all phosphonates as sole phosphorus source during phosphorus starvation. The highest growth rate was achieved with AMPA, while EDTMP and GS were least supportive for growth. Proteome analysis revealed that GS degradation is promoted by C-P lyase via the sarcosine pathway, i.e., initial cleavage at the C-P bond. We also identified C-P lyase to be responsible for degradation of EDTMP, EABMP, IDMP and AMPA. However, the identification of the metabolite ethylenediaminetri(methylenephosphonic acid) via LC/MS analysis in the test medium during EDTMP degradation indicates a different initial cleavage step as compared to GS. For EDTMP, it is evident that the initial cleavage occurs at the C-N bond. The detection of different key enzymes at regulated levels, form the bacterial proteoms during EDTMP exposure, further supports this finding. Y1 - 2024 U6 - https://doi.org/10.1016/j.micres.2024.127600 SN - 0944-5013 VL - 280 SP - 1 EP - 12 ER - TY - GEN A1 - Hertel, Robert A1 - Schöne, Kerstin A1 - Mittelstädt, Carolin A1 - Meißner, Janek A1 - Zschoche, Nick A1 - Collignon, Madeline A1 - Kohler, Christian A1 - Friedrich, Ines A1 - Schneider, Dominik A1 - Hoppert, Michael A1 - Kuhn, Ramona A1 - Schwedt, Inge A1 - Scholz, Patricia A1 - Poehlein, Anja A1 - Martienssen, Marion A1 - Ischebeck, Till A1 - Daniel, Rolf A1 - Commichau, Fabian M. T1 - Characterization of glyphosate-resistant Burkholderia anthina and Burkholderia cenocepacia isolates from a commercial Roundup® solution T2 - Environmental Microbiology Reports N2 - Roundup® is the brand name for herbicide solutions containing glyphosate, which specifically inhibits the 5-enolpyruvyl-shikimate-3-phosphate (EPSP) synthase of the shikimate pathway. The inhibition of the EPSP synthase causes plant death because EPSP is required for biosynthesis of aromatic amino acids. Glyphosate also inhibits the growth of archaea, bacteria, Apicomplexa, algae and fungi possessing an EPSP synthase. Here, we have characterized two glyphosate-resistant bacteria from a Roundup solution. Taxonomic classification revealed that the isolates 1CH1 and 2CH1 are Burkholderia anthina and Burkholderia cenocepacia strains respectively. Both isolates cannot utilize glyphosate as a source of phosphorus and synthesize glyphosate-sensitive EPSP synthase variants. Burkholderia. anthina 1CH1 and B. cenocepacia 2CH1 tolerate high levels of glyphosate because the herbicide is not taken up by the bacteria. Previously, it has been observed that the exposure of soil bacteria to herbicides like glyphosate promotes the development of antibiotic resistances. Antibiotic sensitivity testing revealed that the only the B. cenocepacia 2CH1 isolate showed increased resistance to a variety of antibiotics. Thus, the adaptation of B. anthina 1CH1 and B. cenocepacia 2CH1 to glyphosate did not generally increase the antibiotic resistance of both bacteria. However, our study confirms the genomic adaptability of bacteria belonging to the genus Burkholderia. Y1 - 2022 U6 - https://doi.org/10.1111/1758-2229.13022 SN - 1758-2229 VL - 14 IS - 1 SP - 70 EP - 84 ER - TY - GEN A1 - Hertel, Robert A1 - Gibhardt, Johannes A1 - Martienssen, Marion A1 - Kuhn, Ramona A1 - Commichau, Fabian M. T1 - Molecular mechanisms underlying glyphosate resistance in bacteria T2 - Environmental Microbiology N2 - Glyphosate is a nonselective herbicide that kills weeds and other plants competing with crops. Glyphosate specifically inhibits the 5-enolpyruvyl-shikimate-3-phosphate (EPSP) synthase, thereby depleting the cell of EPSP serving as a precursor for biosynthesis of aromatic amino acids. Glyphosate is considered to be toxicologically safe for animals and humans. Therefore, it became the most-important herbicide in agriculture. However, its intensive application in agriculture is a serious environmental issue because it may negatively affect the biodiversity. A few years after the discovery of the mode of action of glyphosate, it has been observed that bacteria evolve glyphosate resistance by acquiring mutations in the EPSP synthase gene, rendering the encoded enzyme less sensitive to the herbicide. The identification of glyphosate-resistant EPSP synthase variants paved the way for engineering crops tolerating increased amounts of the herbicide. This review intends to summarize the molecular mechanisms underlying glyphosate resistance in bacteria. Bacteria can evolve glyphosate resistance by (i) reducing glyphosate sensitivity or elevating production of the EPSP synthase, by (ii) degrading or (iii) detoxifying glyphosate and by (iv) decreasing the uptake or increasing the export of the herbicide. The variety of glyphosate resistance mechanisms illustrates the adaptability of bacteria to anthropogenic substances due to genomic alterations. Y1 - 2021 U6 - https://doi.org/10.1111/1462-2920.15534 SN - 1462-2920 SN - 1462-2912 VL - 23 IS - 6 SP - 2891 EP - 2905 ER - TY - GEN A1 - Ahmed, Naveed A1 - Martienssen, Marion A1 - Bryant, Isaac Mbir A1 - Vione, Davide A1 - Bruzzoniti, Maria Concetta A1 - Riedel, Ramona T1 - Investigation on UV Degradation and Mechanism of 6:2 Fluorotelomer Sulfonamide Alkyl Betaine, Based on Model Compound Perfluorooctanoic Acid T2 - ChemEngineering N2 - The UV treatment of 6:2 FTAB involves the mitigation of this persistent chemical by the impact of ultraviolet radiation, which is known for its resistance to environmental breakdown. UV treatment of PFOA and/or 6:2 FTAB, and the role of responsible species and their mechanism have been presented. Our investigation focused on the degradation of perfluorooctanoic acid (PFOA) and 6:2 fluorotelomer sulfonamide alkyl betaine (6:2 FTAB, Capstone B), using UV photolysis under various pH conditions. Initially, we used PFOA as a reference, finding a 90% decomposition after 360 min at the original (unadjusted) pH 5.6, with a decomposition rate constant of (1.08 ± 0.30) × 10−4 sec−1 and a half-life of 107 ± 2 min. At pH 4 and 7, degradation averaged 85% and 80%, respectively, while at pH 10, it reduced to 57%. For 6:2 FTAB at its natural pH 6.5, almost complete decomposition occurred. The primary UV transformation product was identified as 6:2 fluorotelomer sulfonic acid (6:2 FTSA), occasionally accompanied by shorter-chain perfluoroalkyl acids (PFAAs) including PFHpA, PFHxA, and PFPeA. Interestingly, the overall decomposition percentages were unaffected by pH for 6:2 FTAB, though pH influenced rate constants and half-lives. In PFOA degradation, direct photolysis and reaction with hydrated electrons were presumed mechanisms, excluding the involvement of hydroxyl radicals. The role of superoxide radicals remains uncertain. For 6:2 FTAB, both direct and indirect photolysis were observed, with potential involvement of hydroxyl, superoxide radicals, and/or other reactive oxygen species (ROS). Clarification is needed regarding the role of 𝑒−𝑎𝑞 in the degradation of 6:2 FTAB. KW - PFOA KW - 6:2 FTAB KW - decomposition KW - photolysis KW - scavenger Y1 - 2024 U6 - https://doi.org/10.3390/chemengineering8020032 SN - 2305-7084 VL - 8 IS - 2 ER - TY - BOOK A1 - Hoffmann, Melanie A1 - Anders, Kenneth A1 - Fischer, Lars A1 - Böllmann, Jörg A1 - Brückner, Ardo A1 - Brunk, Ingo A1 - Donath, Helmut A1 - Donat, Ralf A1 - Elmer, Michael A1 - Güth, Mareike A1 - Häußler, Robert A1 - Mrzljak, Jadranka A1 - Mudra, Dieter A1 - Müller, Markus A1 - Peschel, Tim A1 - Pilz, Wilfried A1 - Sawade, Wolfgang A1 - Schonert, P. A1 - Siedschlag, Marina A1 - Siedschlag, Yvonne A1 - Wanner, Manfred A1 - Wöllecke, Jens ED - Hoffmann, Melanie ED - Anders, Kenneth ED - Fischer, Lars T1 - Kolonisten gesucht! Steckbriefe natürlicher und sozialer Besiedler der Bergbaufolgelandschaft Schlabendorfer Felder Y1 - 2010 PB - Büro für Landschaftskommunikation CY - Bad Freienwalde ER - TY - CHAP A1 - Elmer, Michael A1 - Wöllecke, Jens A1 - Gebhardt, Sascha A1 - Böllmann, Jörg A1 - Hohberg, Karin A1 - Wanner, Manfred A1 - Xylander, Willi E. R. A1 - Hüttl, Reinhard F. ED - Hotes, Stefan ED - Wolters, Volkmar T1 - Primärsukzession der Bodenorganismen T2 - Fokus Biodiversität : wie Biodiversität in der Kulturlandschaft erhalten und nachhaltig genutzt werden kann Y1 - 2010 SN - 978-3-86581-172-1 SP - 125 EP - 131 PB - oekom CY - München ER - TY - GEN A1 - Okofo, Louis Boansi A1 - Adonadaga, Melvin-Guy A1 - Martienssen, Marion T1 - Groundwater age dating using multi-environmental tracers (SF6, CFC-11, CFC-12, δ18O, and δD) to investigate groundwater residence times and recharge processes in Northeastern Ghana T2 - Journal of Hydrology Y1 - 2022 U6 - https://doi.org/10.1016/j.jhydrol.2022.127821 SN - 1879-2707 SN - 0022-1694 VL - Vol. 610 SP - 1 EP - 18 ER - TY - GEN A1 - Ahmed, Naveed A1 - Martienssen, Marion A1 - Bryant, Isaac Mbir A1 - Vione, Davide A1 - Bruzzoniti, Maria Concetta A1 - Riedel, Ramona T1 - Investigation on UV Degradation and Mechanism of 6:2 Fluorotelomer Sulfonamide Alkyl Betaine, Based on Model Compound Perfluorooctanoic Acid T2 - ChemEngineering Y1 - 2024 U6 - https://doi.org/10.3390/chemengineering8020032 SN - 2305-7084 VL - 8 IS - 2 ER - TY - GEN A1 - Afitiri, Abdul-Rahaman A1 - Aram, Simon Appah A1 - Martienssen, Marion T1 - Sytematic review of the effects of Advanced Oxidation Processes integration with solar water disinfection for improved drinking water production T2 - Waste Management Bulletin Y1 - 2024 U6 - https://doi.org/10.1016/j.wmb.2023.08.005 SN - 2949-7507 VL - 1 IS - 4 SP - 52 EP - 59 ER - TY - GEN A1 - Böllmann, Jörg A1 - Martienssen, Marion T1 - Seasonal Variability of Cultivable Nitrate-Reducing and Denitrifying Beacteria and Functional Gene Copy Number in Fresh Water Lake T2 - Microorganisms Y1 - 2024 U6 - https://doi.org/10.3390/microorganisms12030511 SN - 2076-2607 VL - 12 IS - 3 ER - TY - GEN A1 - Böllmann, Jörg A1 - Elmer, Michael A1 - Wöllecke, Jens A1 - Raidl, Stefan A1 - Hüttl, Reinhard F. T1 - Defensive strategies of soil fungi to prevent grazing by Folsomia candida (Collembola) T2 - Pedobiologia Y1 - 2010 SN - 1873-1511 VL - 53 IS - 2 SP - 107 EP - 114 ER - TY - CHAP A1 - Wöllecke, Jens A1 - Böllmann, Jörg A1 - Schneider, Bernd Uwe A1 - Hüttl, Reinhard F. ED - Hüttl, Reinhard F. ED - Schneider, Bernd Uwe T1 - Vergleichende Untersuchungen zur Durchwurzelbarkeit und Mykorrhizierung auf forstlich rekultivierten Kippsubstraten T2 - Neue Ansätze in der land- und forstwirtschaftlichen Rekultivierung Y1 - 2009 SN - 978-3-937728-06-3 SN - 3-937728-06-6 SP - 207 EP - 224 PB - BTU CY - Cottbus ER -