1. Department of Plant Microbe Interactions, Max Planck Institute for Plant Breeding Research, Cologne, Germany
2. Institute of Geography, Department of Geosciences, Faculty of Mathematics and Natural Sciences, University of Cologne, Cologne, Germany
3. Max Planck Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
4. Division of Biochemistry, Department Biology, Friedrich Alexander Universität Erlangen-Nuremberg, Erlangen, Germany
5. Agroscope Reckenholz-Tänikon Research Station, Zürich, Switzerland
6. Institute for Plant Sciences, Cologne Biocenter, University of Cologne, Cologne, Germany
7. Cluster of Excellence on Plant Sciences, Düsseldorf, Germany