1. Department of Biology, University of Copenhagen, Copenhagen Biocentre, 2200 Copenhagen, Denmark (A.J.B., M.M., C.B., I.S., W.G.T.W.); Plant Biology Division, Samuel Roberts Noble Foundation, Ardmore, Oklahoma 73401 (C.-M.Y., E.B.B.); Plant Biochemistry Laboratory, University of Copenhagen, DK–1871 Frederiksberg C, Denmark (J.K.J., H.V.S.); Dewel Microscopy Facility, Appalachian State University,