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Dr. Florence Schubotz
Name: | Dr. Florence Schubotz | |
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Department: | Org. Geochemistry group | |
Job: | PostDoc | |
Room: | ||
Phone: | +49 421 218 - 65711 | |
Fax: | +49 421 218 - 65715 | |
E-Mail: |
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research interests
- marine geochemistry, microbial ecology, biomarker research
- linking the carbon cycle to other element cycles
- investigation of biogeochemical cycles at cold seeps
Curriculum vitae
| since 11/2009 | PostDoc in the work group Organic Geochemistry, MARUM |
| 2006-2009 | PhD candidate in the work group Organic Geochemistry, MARUM 26/10/2009 PhD defense, Dr.rer.nat., University of Bremen, Germany |
| 2003 - 2005 | Study of Environmental and Marine Geosciences, University of Bremen, Germany 1/11/2005 Master of Science, M.Sc., University of Bremen, Germany |
| 2002 - 2003 | Study of Marine Sciences, Universidad de las Palmas de Gran Canaria, Spain |
| 2000 - 2002 | Study of Marine Environmental Sciences, Carl-von-Ossietzky University Oldenburg, Germany 26/8/2002 Vordiplom, Marine Environmental Sciences, Carl-von-Ossietzky University Oldenburg, Germany |
| 23/6/2000 | Abitur, Lise-Meitner Gymnasium (Baden-Würtemberg), Germany |
Awards
2006 RCOM research prize for master thesis: Investigation of Intact Polar Lipids of Bacteria Isolated from the Deep Marine Subsurface
Publications (peer reviewed)
Borin, S., Ventura, S., Tambone, F., Mapelli, F., Schubotz, F., Brusetti, L., Scaglia, B., D'Acqui, L.P., Solheim, B., Turcchia, S., Hinrichs, K.-U., Baldi, F., Adani, F., Daffonchio, D. (2010) Rock weathering creates oases of life in a High Arctic desert. Environmental Microbiology, 2: 293-303. PDF
Schubotz, F., Wakeham, S.G., Lipp, J.S., Fredricks, H.F., Hinrichs, K.-U. Detection of microbial biomass by intact membrane lipid analysis in the water column and surface sediments of the Black Sea. (2009) Environmetal Microbiology, 11(10): 2720-2734. PDF
Strapoc, D., Picardal, F.W., Turich, C., Schaperdoth, I., Macalady, J.L., Lipp, J.S., Lin, Y.-S., Ertefai, T.F., Schubotz, F., Hinrichs, K.-U., Mastalerz, M., Schimmelmann, A. (2008) Methane-Producing Microbial Community in a Coal Bed of the Illinois Basin. Applied and Environmental Microbiology, 74(8): 2424-2432. PDF
Publications (submitted, in preparation)
Lichtschlag, A., Felden, J., Wenzhöfer, F., Schubotz, F., Ertefai, T., Boetius, A., deBeer D. Methane and sulfide fluxes in permanent anoxia: in situ studies at the Dvurechenskii mud volcano (Sorokin Through, Black Sea). in review
Bühring, S.I., Schubotz, F., Harms, C., Lipp, J.S., Amils, R. & Hinrichs, K.-U. Lipid signatures of acidophilic microbial communities in an extreme, acidic environment: Río Tinto, Spain. in review
Rethemeyer, J., Schubotz, F., Talbot, H.M., Cooke, M.P., Hinrichs, K.-U., Mollenhauer, G. Distribution of polar membrane lipids in permafrost soils and sediments of a small Arctic catchment. submitted
Schubotz, F., Lipp, J.S., Elvert, M., Kasten, S., Zabel., M., Escobar, E., Bohrmann, G., Hinrichs, K.-U. Chemosynthetic life at the Chapopote asphalt volcano - insights from gaseous hydrocarbons and intact polar membrane lipids. in preparation
Schubotz, F., Lipp, J.S., Elvert, M., Hinrichs, K.-U. A comprehensive stable carbon isotope approach targeting intact polar membrane lipid groups to study microbial life in an asphalt-impregnated cold seep ecosystem. in preparation
Oral presentations (*invited)
Schubotz, F., Ventura, G.T., Nelson, R.K., Reddy, C.M., Hinrichs, K.-U. Deciphering mechanistic details of asphalt degradation and weathering at the ocean floor with GCxGC. IMOG conference, Bremen, Germany 2009
*Schubotz, F., Ventura, G.T., Nelson, R.K., Knittel, K., Wegener, G., Wilhelm, T., Zabel, M., Kasten, S., Boetius, A., Reddy, C.M., Hinrichs, K.-U. Structure and function of a cold seep nurtered by seepage of heavy oil. Goldschmidt Conference. Davos, Switzerland, 2009
Schubotz, F., Ventura, G.T., Nelson, R.K., Reddy, C.M., Hinrichs, K.-U. Comparative analysis of asphaltene-rich oils from the Campeche Knolls, deciphered by two-dimensional gas chromatography. Gordon Research Conference on Organic Geochemistry. Holderness, NH, USA, 2008
*Schubotz, F., Wakeham, S.G., Fredricks, H.F., Hinrichs, K.-U. Distribution of intact polar lipids in the Black Sea water column. TTR-16 Post-Cruise Meeting. Bremen, Germany, 2007
Schubotz, F., Wakeham, S.G., Fredricks, H.F., Hinrichs, K.-U. Distribution of intact polar lipids in the Black Sea water column. 3rd Northern German Organic Geochemistry Meeting. Hamburg, Germany, 2006
PhD thesis
Hydrocarbon-driven element cycling at cold seeps: from microbial to global scales
The impact of marine hydrocarbon seeps on oceanic element budgets is poorly constrained. This project will seek a more robust understanding of the fluxes of carbon and other elements and their partitioning into biomass, sediments, and water. I will study seep environments in several of the major ocean basins. The scope will range from global to molecular scales and will seek to address questions such as:
Global to regional scale: How relevant are emissions of seep-related chemical species for oceanic element cycles and how do they differ between seep types?
Ecosystem scale: How are flux, assimilation, and turnover of hydrocarbons linked with biomass build-up and carbon burial at different seep types?
Ecosystem to molecular scale: How are the diversities of microbial communities and carbon-flow patterns linked to regimes of fluid flow and seepage?
Techniques include quantitative and isotopic analysis of carbon-bearing compounds in seep sediments and fluids. Instruments: HPLC/MS, GC/MS, LCirMS, GCirMS
ongoing projects
Investigation of intact polar lipids in the stratified water column of the Black Sea
Asphalt volcanism in the Gulf of Mexico
Carbon cycling in anoxic cold seep settings
Master thesis
Investigation of Intact Polar Lipids of Bacteria Isolated from the Deep Marine Subsurface
ODP Leg 201 Scientific Results
Microorganisms thriving in deeply buried sediments amount to possibly one tenth of Earths biomass. Not yet fully understood are the complex biogeochemical processes occuring in this deep biosphere and their global influence.
In my master thesis I tried to shed light into some of the deep biosphere research questions. For this I analyzed intact polar lipids (IPLs) of bacteria cultured from deep sea sediments, drilled during Ocean Drilling Program (ODP) Leg 201 and their respective sediment horizones. The IPL-biomarker analysis was conducted with HPLC/MSn.
other activities
| 6-8/2008 | Research visit at the Woods Hole Ocanographic Institution, MA, USA in the lab of C.M. Reddy |
| 12/2007 | Research visit at the Skidaway Insitute of Oceanography Savannah, GA, USA in the lab of S.G. Wakeham |
| 10-12/2007 | Research visit at the Woods Hole Ocanographic Institution, MA, USA in the lab of C.M. Reddy |
| 2007 | Deutsche Welle TV, short documentary on asphalts on the ocean floor: Die Geheimnisse des Asphalts |
| 2007 | DFG Science TV, short documentary on asphalts on the ocean floor: Leben im Asphalt |
| since 1/2007 | external PhD student of the GLOMAR graduate school |
| 10/2005-10/2007 | Mentor for foreign undergraduate and graduate students within the KOMPASS program, International Office, University of Bremen |
| 2-7/2005 | Public Relation assistant, City of Science 2005, Bremen and Bremerhaven |
2/2007 - 3/2007
4/2006
11/2004 - 12/2004
5/2004
6/2003
4/2001
Meteor M72/2 Black Sea: Istanbul - Istanbul
Investigation of anoxic cold seeps at the GHOSTDABS field and at the Dvurechensky Mud Volcano.
Meteor M67/2b Gulf of Mexico: Tampico - Barbados
Insights into "asphalt volcanism" and the associated chemosynthetic organisms in the southern Gulf of Mexico.
Meteor M62/5a Equatorial and South-Atlantic: Recife - Ascension
Exploration of the mid oceanic ridge in the South Atlantic within the DFG priority program 1144 "from mantle to ocean".
FS Senckenberg Jade Bay, student practical
Seismological and bathymetric investigations in the Jade Bay, Wilhelmshaven.
B.O. Mytilus Gran Canaria, student practical
Introduction into equipment of physical and chemical oceanography and sedimentological investigations.
FS Heincke North Sea, student practical
Planktological investigations off the coast of Helgoland.
