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Violaxanthin de-epoxidase in etiolated leaves
1Institute of Biology, Department of Bioenergetics, University of Stuttgart, Ulmer Str. 227, 7000, Stuttgart 60, Federal Republic of Germany.
Photosynthesis Research
|January 17, 2014
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).
