title: Violaxanthin de-epoxidase in etiolated leaves.
abstract: In etiolated leaves the occurrence of the enzymatic violaxanthin de-epoxidation to zeaxanthin is shown. The carotenoid transformation is provoked by the infiltration of whole leaves with ascorbate at pH 5 and is susceptible to DTT. Identification of the de-epoxidase activity is achieved by in vivo spectroscopy and pigment analysis (TLC).
authors.affiliation: Institute of Biology, Department of Bioenergetics, University of Stuttgart, Ulmer Str. 227, 7000, Stuttgart 60, Federal Republic of Germany.
authors.forename: E
authors.initials: E
authors.lastname: Pfündel
authors.forename: R J
authors.initials: RJ
authors.lastname: Strasser