1. Geomicrobiology,
Center for Applied Geosciences, University of Tuebingen, 72076 Tuebingen, Germany
2. Environmental
Analytical Microscopy, Center for Applied Geosciences, University of Tuebingen, 72074 Tuebingen, Germany
3. Department
of Chemistry and Chemical Biology, McMaster University Hamilton, Hamilton Ontairo, Canada L8S 4M1
4. Advanced
Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
5. Department
of Geosciences, Virginia Tech, Blacksburg, Virginia 24061, United States
6. Department
of Plant Physiology, Ruhr University Bochum, 44801 Bochum, Germany