1. Department of Microbial Ecology Netherlands Institute of Ecology (NIOO‐KNAW) Wageningen The Netherlands
2. Institute of Biology Leiden University Sylviusweg 72 2333 BE Leiden The Netherlands
3. Faculty of Agriculture and Marine Science Kochi University 200 Otsu, Monobe Nankoku Kochi 783‐8502 Japan
4. University of Bonn Kekulé‐Institute of Organic Chemistry and Biochemistry Gerhard‐Domagk‐Straße 1 53121 Bonn Germany