1. Institute of Crop Science and Resource Conservation (INRES); Department of Molecular Phytomedicine; University of Bonn; Karlrobert-Kreiten Str. 13 53115 Bonn Germany
2. Institute of Pharmaceutical Biology and Biotechnology; Heinrich-Heine-University Düsseldorf; Universitäts Str. 1. Building. 26.23 40225 Düsseldorf Germany
3. Institute of Photonic Technology; Workgroup Spectroscopy/Imaging; Albert-Einstein-Str. 9 07745 Jena Germany
4. Institute of Physical Chemistry and Abbe Center of Photonics; Friedrich Schiller University; Helmholtzweg 4 07743 Jena Germany
5. Research Group Biosynthesis/NMR; Max Planck Institute for Chemical Ecology; Hans-Knöll-Str. 8 07745 Jena Germany