1. Institute for Chemistry and Physics of Lipids; Federal Centre for Cereal, Potato and Lipid Research; Münster Germany
2. Feldbehnstr. 64 a D-25451 Quickborn Germany
3. Institute for Lipid Research; Federal Centre for Cereal, Potato and Lipid Research; Münster Germany
4. ; Institut für Biologie-Systematische Botanik und Pflanzengeographie (BSB); Freie Universität Berlin; Berlin Germany