Conference Contributions

Invited Talks

• Gallego S., Soufi L., Kampouris I., Lüneberg K., Heyde B.J., Siebe C., Siemens J., Grohmann E., Smalla K. Soil type and wastewater contaminants drive Antibiotic Resistance Genes (ARGs), Mobile Genetic Elements (MGEs), and bacterial communities in soil and plants. International Workshop on Environmental Risk and Control of Emerging Contaminants, October 2025, Hangzhou, China.
• Mulder I. Fate and effects of disinfectants in soils. IESW-Seminar, Institute of Earth System Sciences, Leibniz Universität Hannover, January 2025, Germany.
• Mulder I. Fate and effects of disinfectants in soils. Seminar Talk, Münster, Institute of Landscape Ecology, October 2024, Germany.
• Mulder I, Heyde B, Glaeser S, Jansen K, Lennartz S, Siemens J. Fate of Quaternary Alkylammonium Compound – disinfectants in soils. Seminar Talk, Soil and Crop Science Department, Texas A&M University, February 2024, USA.
• Mulder I. Verbleib und Effekte von Quartären Alkylammonium-Desinfektionsmitteln in Böden. Kolloquium Boden-Wasser-Luft, January 2024, Universität Freiburg, Germany.
• Heyde B.J. Does Wastewater Treatment Really Improve Irrigation for Agricultural Use Compared to Untreated Wastewater? Soil & Crop Sciences Seminar, 2024, Texas A&M University, USA.
• Axtmann K. Vorteile und Risiken von Abwasserbewässerung. Hochschule Osnabrück, October 2023, Germany.

2025

• Grohmann E, Soufi L, Gallego S, Smalla K, Lüneberg K, Siebe C, Heyde BJ, Siemens J. Changing irrigation water quality affects the soil resistome and mobilome. BAGECO 2025, July 2025, Graz, Austria.
• Gallego S, Soufi L, Kampouris I, Lüneberg K, Heyde BJ, Siebe C, Siemens J, Grohmann E, Smalla K. Wastewater-borne pollutants affected the soil resistome and mobilome and shaped the microbial community composition in the cilantro rhizosphere. Poster. BAGECO 2025, July 2025, Graz, Austria.
• Glaeser S.P, Pulami D, Axtmann K, Soufi L, Gallego S, Lüneberg K, Bierbaum G, Grohmann E, Smalla K, Siebe C, Siemens J. Leaves of alfalfa and cilantro plants from Mexican fields irrigated with different water qualities are colonized by antibiotic-resistant E. coli and enterococci. Poster. BAGECO 2025, July 2025, Graz, Austria. 
• Gallego S, Smalla K. ONE Health Antimicrobial Resistance – the role of the agroecosystem. Seminar, Medical Faculty, University of Buenos Aires, March 2025, Argentina.
• Gallego S, Soufi L, Kampouris I, Lüneberg K, Heyde BJ, Siebe C, Siemens J, Grohmann E, Smalla K. Wastewater-borne pollutants affected the soil resistome, mobilome and rhizosphere microbial community composition in monolithic soil columns planted with cilantro. Poster. VAAM Conference, March 2025, Bochum, Germany.
• Pulami D, Smalla K, Gallego S, Axtmann K, Bierbaum G, Soufi L, Grohmann E, Lüneberg K, Siebe C, Heyde B, Mulder I, Siemens J, Glaeser S.P. Antimicrobial-resistant Escherichia coli in irrigation water of different quality, and leaves of irrigated cilantro and alfalfa plants from the Mezquital Valley, Mexico. Talk. VAAM 2025, March 2025, Bochum, Germany.
• Mulder I, Fate and effects of disinfectants in soils. IESW-Seminar, Institute of Earth System Sciences, Leibniz Universität Hannover, January 2025, Germany.

2024

• Gallego S, Smalla K. ONE Health Antimicrobial Resistance – the role of the environment. JPIAMR Early Career Workshop, November 2024, Berlin, Germany.
• Gallego S, Smalla K. ONE Health Antimicrobial Resistance – the role of the agroecosystem. Colloquium, Chinese Agricultural University, November 2024, Beijing, China.
• Gallego S, Smalla K. The transferable resistome of biosolid bacteria captured in E. coli. 2nd Soil Microbiome Symposium, October 2024, Yangling, China.
• Gallego S, Smalla K. The transferable resistome of biosolid bacteria captured in E. coli influenced by the size of the wastewater treatment plant? Annual Microbial Ecology Meeting, October 2024, Qingdao, China.
• Grohmann E, Soufi L, Gallego S, Kampouris I, Heyde B.J, Siemens J, Lüneberg K, Siebe C, Smalla K. Antibiotic Resistance Gene Abundance and Transfer in Wastewater-Irrigated Soils. Sustainable Urban Water Management for Fast Growing Cities Conference, October 2024, Hyderabad, India (online).
• Gallego S, Smalla K. ONE Health – Effekte organischer Dünger und von Beregnungswasser auf das Vorkommen übertragbarer Antibiotikaresistenzen im Pflanzenmikrobiom. Infektions- und Hygiene Kongress Freiburg, October 2024, Germany.
• Heyde B.J, Axtmann K, Braun M, Böckmann M, Gallego S, Hahn N, Lüneberg K, Soufi L, Amelung W, Bierbaum G, Glaeser S, Grohmann E, Mulder I, Pulami D, Smalla K, Zarfl C, Siebe S, Siemens J. Umstellung von unbehandeltem auf behandeltes Abwasser zur landwirtschaftlichen Bewässerung: Auswirkungen auf Antibiotika, Metalle und Nährstoffe im Boden. Umwelt 2024 – Jahrestagung der SETAC-GLB, September 2024, Gießen, Germany.
• Soufi L, Kampouris I, Heyde B, Lüneberg K, Pulami D, Glaeser S, Siebe C, Siemens J, Grohmann E, Smalla K, Gallego S. Health risks from irrigating crops with wastewater containing micropollutants and bacteria carrying transferable antibiotic resistances. Talk. SETAC-GLB, September 2024, Gießen, Germany.
• Böckmann M, Axtmann K, Bierbaum G, Zarfl C. Periodische Antibiotikaemissionen begünstigen die Selektion resistenter Bakterien. Umwelt 2024 – Jahrestagung der SETAC-GLB, September 2024, Gießen, Germany.
• Soufi L, Gallego S, Kampouris I, Werner K, Lüneberg K, Schakowski J, Heyde BJ, Siemens J, Siebe C, Smalla K, Grohmann E. Impact of Wastewater Irrigation on Antibiotic Resistance Genes in Mezquital Valley Soils. Poster. Umwelt 2024 – Jahrestagung der SETAC-GLB, September 2024, Gießen, Germany.
• Mulder I, Heyde B, Siebe C, Jansen K, Mohr C, Lügger K, Heller C, Siemens J. Böden als Senken von Desinfektionsmittel – Quartäre Alkylammoniumverbindungen. SETAC-GLB Konferenz, September 2024, Gießen, Germany.
• Axtmann K, Brinkmann S, Siskowski A, Heyde B, Braun M, Siemens J, Bierbaum G. Bodenkolloide beeinflussen den selektiven Effekt von Antibiotika auf bakterielles Wachstum. Talk. SETAC-GLB Konferenz, September 2024, Gießen, Germany.
• Pulami D., Aryal D., Isack P., Heyde B., Siebe C., Siemens J., Kämpfer P., Glaeser S.P. Cultivation-based quantification of antimicrobial-resistant heterotrophic bacteria upon changing irrigation from untreated wastewater to treated wastewater in soils with different clay contents. Poster. Talk. SETAC-GLB Konferenz, September 2024, Gießen, Germany.
• Gallego S, Smalla K. Insight from studying the ecology of plasmids for more than three decades. Seminar, Shizuoka University, September 2024, Japan.
• Gallego S, Smalla K. The transferable resistome of biosolid bacteria influenced by the size of the wastewater treatment plant? International Symposium on Plasmid Biology, September 2024, Hamamatsu, Japan.
• Gallego S, Soufi L, Kampouris I, Heyde B, Lüneberg K, Pulami D, Glaeser S, Siebe C, Siemens J, Grohmann E, Smalla K. Wastewater-borne pollutants affected the soil resistome and mobilome but not the overall microbial community composition. Poster. ISME 2024, August 2024, Capetown, South Africa.
• Soufi L, Gallego S, Kampouris I, Werner K, Lüneberg K, Schakowski J, Heyde BJ, Siemens J, Siebe C, Smalla K, Grohmann E. Impact of Untreated and Treated Wastewater Irrigation on Antibiotic Resistance Genes and Mobile Genetic Elements in Three Different Soil Types. Poster. 7th Joint Conference “Joint Microbiology & Infection Conference” of the DGHM and VAAM, June 2024, Würzburg, Germany.
• Pulami D., Aryal D., Isack P., Heyde B., Siebe C., Siemens J., Kämpfer P., Glaeser S.P. Cultivation-based quantification of antimicrobial-resistant heterotrophic bacteria upon changing irrigation from untreated wastewater to treated wastewater in soils with different clay contents. Poster. DGHM & VAAM Joint Conference 2024, Würzburg, Germany, 2024.
• Siemens J, Heyde B, Lüneberg K, Hahn N, Axtmann K, Soufi L, Böckmann M, Braun M, Amelung W, Bierbaum G, Gallego S, Glaeser S, Grohmann E, Mulder I, Smalla K, Zarfl C, Siebe C. Replacing untreated with treated wastewater for irrigation: Consequences for antibiotics, metals and nutrients in soils. Talk. EDAR 7, May 2024, Montreal, Canada.
• Gallego S, Soufi L, Kampouris I, Lüneberg K, Heyde B, Siebe C, Siemens J, Grohmann E, Smalla K. Wastewater-borne pollutants affected the soil resistome and mobilome but not the overall microbial community composition. Poster. 7th Environmental Dimension of Antimicrobial Resistance Conference (EDAR), May 2024, Montreal, Canada.
• Soufi L, Gallego S, Werner K, Lüneberg K, Schakowski J, Vu VQ, Michaelis C, Heyde BJ, Siemens J, Siebe C, Smalla K, Grohmann E. Antibiotic Resistance Gene Abundance and Transfer in Wastewater-Irrigated Soils. Poster. EDAR 2024, May 2024, Montreal, Canada.
• Axtmann K, Brinkmann S, Siskowski A, Heyde B, Braun M, Siemens J, Bierbaum G. Soil colloids affect the selective effect of different antibiotics on bacterial growth. Flash talk and poster, EDAR 7, May 2024, Montreal, Canada.
• Soufi L, Gallego S, Werner K, Schakowski J, Heyde BJ, Siemens J, Smalla K, Grohmann E. Occurrence of antibiotic resistance genes and mobile genetic elements in Gram-positive bacteria in three different soils irrigated with treated or untreated wastewater. Poster. One Health and Antimicrobial Resistance: Role of Antibiotics, Antimicrobial Peptides and Biocides, January 2024, BAM Berlin, Germany.

2023

• Gallego S, Smalla K. ONE Health Antimicrobial Resistance – the role of the agro-ecosystem. Colloquium, Universität Greifswald, November 2023, Germany.
• Gallego S, Smalla K. ONE Health Antimicrobial Resistance – the role of the agroecosystem. VAAM Annual Conference, September 2023, Göttingen, Germany.
• Soufi L, Gallego S, Werner K, Schakowski J, Heyde BJ, Siemens J, Smalla K, Grohmann E. Soil type and irrigation water quality influence the variety and abundance of antibiotic resistance genes and mobile genetic elements in Gram-positive soil bacteria. Poster. VAAM Annual Conference, September 2023, Göttingen, Germany.
• Heyde B.J, Hahn N, Zernovnikov P, Elmossallamy D, Lüneberg K, Siebe C, Siemens J. Ist geklärtes Abwasser wirklich besser zur Bewässerung landwirtschaftlicher Flächen geeignet als unbehandeltes Abwasser? Conference of the German Soil Science Society, September 2023, Halle a.d. Saale, Germany.
• Böckmann M, Siemens J, Heyde B.J, Zarlf C. Identification of dissipation pathways for pharmaceuticals in natural soils – A modelling approach. 18th International Conference on Chemistry and the Environment, June 2023, Venice, Italy.
• Gallego S, Soufi L, Heyde B, Siemens J, Grohmann E, Smalla K. Antibiotic resistance genes and mobile genetic elements in three different soils irrigated with untreated or treated wastewater. Poster. Symposium on Bacterial Genetics and Ecology (BAGECO), 26–30 June 2023, Copenhagen, Denmark.

2022

• Heyde B.J, Siemens J, Glaeser S.P, Barthel A, Anders A, Bisping L, Siebe C, Mulder I. Desinfektionsmittel: Segen im Alltag – Fluch im Boden? Conference of the German Soil Science Society, September 2022, Trier, Germany.
• Böckmann M, Siemens J, Heyde B.J, Zarlf C. Modellbasierte Bestimmung gelöster und sorbierter Schadstoffkonzentrationen in Böden. Umwelt 2022, September 2022, Emden, Germany.
• Heyde B.J, Mulder I, Siebe C, Siemens J. Quaternary alkylammonium disinfectants in soils. World Congress of Soil Science, August 2022, Glasgow, Scotland.
• Heyde B.J, Amelung W, Braun M, Mulder I, Bierbaum G, Grohmann E, Jechalke S, Smalla K, Glaeser S.P, Zarfl C, Siebe C, Siemens J. Pollutant – Antibiotic Resistance – Pathogen Interactions in a Changing Wastewater Irrigation System. EDAR 6, June 2022, Göteborg, Sweden.
• Axtmann K, Schuster D, Holstein N, Felder C, Voigt A, Färber H, Ciorba P, Szekat C, Schallenberg A, Böckmann M, Zarfl C, Neidhöfer C, Smalla K, Exner M, Bierbaum G. Antibiotic concentrations in raw hospital wastewater surpass minimal selective and minimal inhibitory concentrations of resistant Acinetobacter baylyi strains. Poster. EDAR 6, June 2022, Göteborg, Sweden.