1. Department of Plant Systems Biology, Flanders Interuniversity Institute for Biotechnology, Ghent University, K.L. Ledeganckstraat 35, B–9000 Gent, Belgium (A.G., D.I.);
2. Valtion Teknillinen Tutkimuskeskus Biotechnology, P.O. Box 1500 (Tietotie 2), FIN–02044 Espoo, Finland (S.T.H., K.-M.O.-C.); and
3. Department of Pharmacy, Division of Pharmacognosy, P.O. Box 56, FIN–00014 University of Helsinki, Helsinki, Finland (I.L.)