1. Max Planck Institute for Terrestrial Microbiology; Karl-von-Frisch-Str.10 Marburg D-35043 Germany
2. Radboud University Nijmegen; Heyendaalsweg 135 Nijmegen 6525 AJ The Netherlands
3. Laboratory for Microbial Ecology and Technology (LabMET); Faculty of Bioscience Engineering; Coupure Links 653 Ghent 9000 Belgium
4. Department of Soil Science; Faculty of Agriculture; Andalas University; Kampus Unand Limau Manis Padang 25163 Indonesia
5. Department Ecology and Ecosystem Management; Center of Life and Food Sciences Weihenstephan; Technische Universität München; Lehrstuhl für Bodenkunde Freising-Weihenstephan D-85350 Germany
6. Institute of Geosciences; University Kiel; Ludewig-Meyn-Straße 10 Kiel 24118 Germany
7. WA-OIGC; Curtin University; Perth WA 6845 Australia
8. Department of Soil Science; Faculty of Agriculture; Brawijaya University; Jalan Veteran Malang 65145 East Java Indonesia