Indole-3-Acetic Acid Oxidation and Crocin Bleaching by Horseradish Peroxidasel

During indoleacetic acid (IAA) oxidation by horseradish peroxidase the water soluble model polyene, crocin, is bleached. IAA-oxidatlon and crocin bleaching are stimulated at acidic pH as wel as by the monophenol p-hydroxyacetophenone. IAA oxidation and crocin bleaching are neither influenced by catalase or superoxide dismutase nor by different OH-rad-ical scavengers, whereas both ascorbate and propylgallate are inhibitory.

[1]  G. Sandberg,et al.  Identification of oxindole-3-acetic acid, and metabolic conversion of indole-3-acetic acid to oxindole-3-acetic acid in Pinus sylvestris seeds , 1987, Planta.

[2]  G. Sandberg,et al.  Endogenous indoles and the biosynthesis and metabolism of indole-3-acetic acid in cultures of Rhizobium phaseoli , 1987, Planta.

[3]  P. Schloss,et al.  Basic peroxidases in isolated vacuoles of nicotiana tabacum L. , 1987, Planta.

[4]  H. Grambow,et al.  The relationship between oxidase activity, peroxidase activity, hydrogen peroxide, and phenolic compounds in the degradation of indole-3-acetic acid in vitro , 1983, Planta.

[5]  V. Magnus,et al.  Indole-3-methanol—a metabolite of indole-3-acetic acid in pea seedlings , 1971, Planta.

[6]  G. Perbal,et al.  Intracellular localization of 3H-IAA in the apical bud of Lycopersicon esculentum , 1987 .

[7]  G. Sandberg,et al.  Catabolism of indole‐3‐acetic acid in chloroplast fractions from light‐grown Pisum sativum L. seedlings , 1986 .

[8]  Misako Kato,et al.  Chlorophyll Metabolism in Higher Plants VI. Involvement of Peroxidase in Chlorophyll Degradation , 1985 .

[9]  B. Sundberg,et al.  Catabolism of indole-3-acetic acid to indole-3-methanol in a crude enzyme extract and in protoplasts from Scots pine (Pinus sylvestris) , 1985 .

[10]  J. D. Río,et al.  Indole‐3‐methanol as an intermediate in the oxidation of indole‐3‐acetic acid by peroxidase , 1983 .

[11]  D. Reinecke,et al.  Oxindole-3-acetic Acid, an Indole-3-acetic Acid Catabolite in Zea mays. , 1983, Plant physiology.

[12]  E. Martinoia,et al.  Catabolism of Chlorophyll: Demonstration of Chloroplast-localized Peroxidative and Oxidative Activities , 1982 .

[13]  T. Hymowitz,et al.  Carotene and chlorophyll bleaching by soybeans with and without seed lipoxygenase-1 , 1982 .

[14]  E. Elstner.  OXYGEN ACTIVATION AND OXYGEN TOXICITY , 1982 .

[15]  A. Huff.  Peroxidase-catalysed oxidation of chlorophyll by hydrogen peroxide , 1982 .

[16]  E. Davies,et al.  Subcellular Localization of IAA Oxidase in Peas. , 1981, Plant physiology.

[17]  Y. Shioi,et al.  Purification and Properties of Soluble Chlorophyllase from Tea Leaf Sprouts , 1981 .

[18]  P. Matile.  Catabolism of chlorophyll: Involvement of peroxidase? , 1980 .

[19]  K. Grob,et al.  Comparmentation of Ascorbic Acid in Vacuoles of Horseradish Root Cells. Note on Vacuolar Peroxidase , 1980 .

[20]  E. Elstner,et al.  Chlorophyll Photobleaching and Ethane Production in Dichlorophenyldimethylurea-(DCMU) or Paraquat-Treated Euglena gracilis Cells , 1980, Zeitschrift fur Naturforschung. Section C, Biosciences.

[21]  W. Grosch,et al.  Co-oxidation of carotenes requires one soybean lipoxygenase isoenzyme. , 1979, Biochimica et biophysica acta.

[22]  C. Frenkél,et al.  Auxin inhibition of ripening in bartlett pears. , 1973, Plant physiology.

[23]  W. Laetsch,et al.  Regulation of senescence in bean leaf discs by light and chemical growth regulators. , 1967, Plant physiology.

[24]  R. H. Kenten.  The oxidation of indolyl-3-acetic acid by waxpod bean root sap and peroxidase systems. , 1955, The Biochemical journal.