Open AccessIndole-3-Acetic Acid Oxidation and Crocin Bleaching by Horseradish Peroxidase
Author(s) -
Wolfgang Oßwald,
W. Schütz,
Erich F. Elstner
Publication year - 1988
Publication title -
plant physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.554
H-Index - 312
eISSN - 1532-2548
pISSN - 0032-0889
DOI - 10.1104/pp.86.4.1310
Subject(s) - crocin , chemistry , horseradish peroxidase , peroxidase , catalase , superoxide dismutase , indole 3 acetic acid , acetic acid , biochemistry , nuclear chemistry , organic chemistry , antioxidant , enzyme , auxin , gene
During indoleacetic acid (IAA) oxidation by horseradish peroxidase the water soluble model polyene, crocin, is bleached. IAA-oxidation and crocin bleaching are stimulated at acidic pH as well as by the monophenol p-hydroxyacetophenone. IAA oxidation and crocin bleaching are neither influenced by catalase or superoxide dismutase nor by different OH-radical scavengers, whereas both ascorbate and propylgallate are inhibitory.