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Geomicrobiology Journal Volume 32, 2015 - Issue 3-4: Geobiology of Organo- and Biofilms
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Original Articles

Scanning Hard X-ray Microscopy Imaging Modalities for Geobiological Samples

R. N. WilkeInstitute for X-Ray Physics, Georg-August-University of Göttingen, Göttingen, GermanyCorrespondence[email protected]
,
N. QuéricGeoscience Center, Georg-August-University of Göttingen, Göttingen, Germany;Courant Research Center Geobiology, Georg-August-University of Göttingen, Göttingen, Germany
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M. HoppertCourant Research Center Geobiology, Georg-August-University of Göttingen, Göttingen, Germany;Institute of Microbiology and Genetics, Georg-August-University of Göttingen, Göttingen, Germany
,
C. HellerGeoscience Center, Georg-August-University of Göttingen, Göttingen, Germany
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A. SchroppSLAC National Accelerator Laboratory, Menlo Park, California, USA;Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany
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C. G. SchroerDeutsches Elektronen-Synchrotron DESY, Hamburg, Germany;Department Physik, University of Hamburg, Hamburg, Germany
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M. BurghammerEuropean Synchrotron Radiation Facility, Grenoble Cedex, France;Department of Analytical ChemistryGhent University, Ghent, Belgium
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T. SaldittInstitute for X-Ray Physics, Georg-August-University of Göttingen, Göttingen, Germany
&
J. ReitnerGeoscience Center, Georg-August-University of Göttingen, Göttingen, Germany;Courant Research Center Geobiology, Georg-August-University of Göttingen, Göttingen, Germany
 show all
Pages 380-383 | Received 01 Dec 2013, Accepted 01 Mar 2014, Published online: 03 Apr 2015
 
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Abstract

Modern scanning X-ray microscopy can help to unravel the spatial context between biotic and abiotic compounds of geobiological assemblies with the aim to finally link chemical pathways to biological activities at the nanometre scale. This work presents some multi-modal imaging techniques provided by hard X-ray microscopes at synchrotron radiation sources to address analytical needs in geobiological research. Using the examples of 1) a calcified basal skeleton of the demosponge Astrosclera willeyana, 2) an anaerobic methane-oxidizing microbial mat and 3) a bacterial sulfur-oxidizing consortium, we illustrate the potential of scanning X-ray fluorescence and scanning transmission X-ray microscopy, and a novel quantitative approach of ptychographic imaging at single cell level.

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