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Vortragsreihe Ökologie und Umweltforschung WS 2022/23
Donnerstag 12:15-13:45 H6, Geo
Dr. Muammar Mansor
Center for Applied Geoscience Geomicrobiology, Eberhard Karls Universität Tübingen (Homepage)
Donnerstag, 08.12.2022 :
Microbial-mineral interactions: Formation of pyrite and implications for biosignature and environmental research
Microbe-mineral interactions affect the biogeochemical cycling of various elements (Fe, S, C, N, P, trace metals, nutrients, contaminants), the evolution of life, and the preservation of minerals that hold clues to conditions on Earth’s past and potentially in other habitable worlds. The mineral pyrite (FeS2) in particular is prevalent in nature due to the activity of Fe- and S-cycling microbes, making them promising for applications in the field of biosignatures and environmental remediation. However, decades of research with microbial cultures have revealed difficulties in forming pyrite in the lab, despite biogenic pyrite being formed everyday in sedimentary environments on Earth. In this talk, I will present recent advances in microbially-mediated formation of pyrite and its Fe sulfide precursors (mackinawite, greigite). The role of different microbes and interrelated Fe-S chemistry in impacting pyrite formation will be discussed. Recent advances highlight the need to develop systems that better reflect the complexity of natural environments to form pyrite with properties that are relevant for environmental and geological research.
*** invited by Stefan Peiffer, Hydrology
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| Datum | Vortragende*r | Titel |
|---|---|---|
27.10.2022 | Dr. Luisa Hopp Lehrstuhl für Hydrologie, Universität Bayreuth | Streamflow generation processes: controls, flow pathways and links to solute export [Abstract] |
10.11.2022 | Dr. Hannah Schneider Centre for Crop Systems Analysis, Wageningen University | Root Phenotypes for Crop Improvement [Abstract] |
17.11.2022 | Dr. Ingo Heidbüchel Helmholtz-Zentrum für Umweltforschung - UFZ, Department für Hydrogeologie | Water ages in the hydrologic cycle [Abstract] |
24.11.2022 | Dr. Andrea Kaim Department of Computational Landscape Ecology, Helmholtz Centre for Environmental Research - UFZ, Leipzig, Germany | Preserving ecosystem services and biodiversity on agricultural land [Abstract] |
| H8 01.12.2022 | Dr. Alexander Frank & BayCenSI Steering Committee | BayCenSI Opening Ceremony [Abstract] |
08.12.2022 | Dr. Muammar Mansor Center for Applied Geoscience Geomicrobiology, Eberhard Karls Universität Tübingen | Microbial-mineral interactions: Formation of pyrite and implications for biosignature and environmental research [Abstract] |
15.12.2022 | Dr. Alexander Groos Universität Erlangen | Climate, Environmental and Human History in the Highlands of Ethiopia [Abstract] |
12.01.2023 | Prof. Dr. Wolfgang Durner Leiter der Abteilung Bodenkunde und Bodenphysik, TU Braunschweig | Challenges in Soil Hydrological Modeling -- The Devil is in the Details ... [Abstract] |
19.01.2023 | Prof. Dr. Hannes Knapp Board Member of the Presiding Committee, Euronatur Foundation | Die aktuelle Situation der deutschen Wälder |
26.01.2023 | NN | BayCEER Mitgliederversammlung |
02.02.2023 | Dr. Alejandro Ordonez Department of Biology, Aarhus University, Denmark | Rising Novelty in Ecosystems and Climates [Abstract] |
Terminplanung und Vortragsarchiv BayCEER Kolloquium (seit 2008) sowie Geoökologisches Kolloquium (ab 2001)
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| Do. 08.12.2022 Vorstellungsgespräche Leitung ÖBG |
| BayCEER-Kolloquium: |
|---|
| Do. 08.12.2022 Microbial-mineral interactions: Formation of pyrite and implications for biosignature and environmental research |
| Do. 15.12.2022 Climate, Environmental and Human History in the Highlands of Ethiopia |
| Ökologisch-Botanischer Garten: |
| So. 04.12.2022 aktuell Führung | Überleben bei Eis und Schnee: Wie Tiere überwintern |
| So. 01.01.2023 Führung | Startklar! Bäume und ihre Knospen |