1. Plant Biochemistry Laboratory, Department of Plant Biology (K.A.N., K.P., B.L.M.),
2. Center for Molecular Plant Physiology (K.A.N., C.E.O., K.P., B.L.M.), and
3. Department of Chemistry (C.E.O.), 40 Thorvaldsensvej, Royal Veterinary and Agricultural University, DK–1871 Frederiksberg C, Copenhagen, Denmark