1. Soil Biology and Molecular Ecology Group School of Earth and Environment Institute of Agriculture The University of Western Australia Crawley WA 6009 Australia
2. Department of Microbiology and Ecosystem Science Division of Terrestrial Ecosystem Research Faculty of Life Sciences University of Vienna Althanstrasse 14 Vienna A‐1090 Austria
3. Centre for Microscopy, Characterisation and Analysis The University of Western Australia Crawley WA 6009 Australia