Indole-3-acetic acid oxidation and crocin bleaching by horseradish peroxidase

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 cat...

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Bibliographic Details
Published in:Plant physiology (Bethesda) 1988-04, Vol.86 (4), p.1310-1314
Main Authors: Osswald, W.F, Schutz, W, Elstner, E.F
Format: Article
Language:English
Subjects:
ACIDE INDOLACETIQUE
ACIDO INDOLACETICO
Agronomy. Soil science and plant productions
Analytical, structural and metabolic biochemistry
Biological and medical sciences
Bleaching
Catabolism
Chlorophylls
Economic plant physiology
Enzymes
Enzymes and enzyme inhibitors
FISIOLOGIA VEGETAL
Fundamental and applied biological sciences. Psychology
IAA
Insulin antibodies
Nutrition. Photosynthesis. Respiration. Metabolism
OXIDACION
OXIDATION
Oxidoreductases
OXYDATION
PEROXIDASAS
PEROXIDASES
PEROXYDASE
Phosphates
PHYSIOLOGIE VEGETALE
PLANT PHYSIOLOGY
Plants
Polyenes
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Summary: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.
ISSN:0032-0889
1532-2548
DOI:10.1104/pp.86.4.1310