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Lecture series in Ecology and Environmental Research WS 2022/23

Thursday 12:15-13:45 H6, Geo


Dr. Muammar Mansor
Center for Applied Geoscience Geomicrobiology, Eberhard Karls Universität Tübingen (Homepage)
Thursday, 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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DatelecturerTitle


27.10.2022
Dr. Luisa Hopp
Lehrstuhl für Hydrologie, Universität Bayreuth
Streamflow generation processes: controls, flow pathways and links to solute export [Abstract]


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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
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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
Department Geographie und Geowissenschaften, Institut für Geographie, Friedrich-Alexander-Universität Erlangen-Nürnberg
Living on the ice edge: insights into the environmental, climatic, and human history of the Ethiopian highlands [Abstract]


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Prof. Dr. Wolfgang Durner
Leiter der Abteilung Bodenkunde und Bodenphysik, TU Braunschweig
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Dr. Alejandro Ordonez
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