1. Department of Medicinal and Pharmaceutical Chemistry, University of Greifswald, Friedrich-Ludwig-Jahn-Straße 17, 17489 Greifswald, Germany
2. Department of Biophysical Chemistry, University of Greifswald, Felix-Hausdorff-Straße 4, 17489 Greifswald, Germany
3. MSU-DOE Plant Research Laboratory, Michigan State University, 612 Wilson Road, East Lansing, Michigan 48824, United States of America