Inhibitory Oxidation Products of Indole-3-acetic Acid
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چکیده
منابع مشابه
Inhibitory oxidation products of indole-3-acetic Acid: 3-hydroxymethyloxindole and 3-methyleneoxindole as plant metabolites.
Extracts of pea seedlings (Pisum sativum, variety Alaska) oxidize indole-3-acetic acid to a bacteriostatic compound which has been identified as 3-hydroxymethyloxindole. At physiological pH this compound is readily dehydrated to 3-methyleneoxindole, another bacteriostatic agent. The extracts of pea seedlings also contain a reduced triphosphopyridine nucleotide-linked enzyme which reduces 3-meth...
متن کاملInhibitory Oxidation Products of Indole-3-acetic Acid. Mechanism of Action and Route of Detoxification.
The use of Escherichia coli as a model organism for studies on the biochemistry of the action of indole-3-acetic acid has revealed that two products of the photooxidation of this plant hormone, 3.hydroxymethyloxindole and 3-methyleneoxindole, are potent inhibitors of the growth of both microorganisms and higher plants (I). The latter compound was first identified by Hinman, Bauman, and Lang (2)...
متن کاملStudies on the oxidation of indole-3-acetic Acid by peroxidase enzymes. I. Colorimetric determination of indole-3-acetic Acid oxidation products.
The method described here is based on a brief report by Harley-Mason and Archer. It involves the use of p-dimethylaminocinnamaldehyde (DMACA), a vinylogue of Ehrlich's reagent, as a color reagent for indoles. Colorimetric analyses of indoleacetic acid (IAA) oxidation reaction mixtures were made with the DMACA reagent as a solution rather than a spray. DMACA reagent will yield a wine-red color w...
متن کاملPeroxidase-catalyzed Oxidation of Indole-3-acetic Acid.
The aerobic oxidation of indole-3-acetic acid catalyzed by horseradish peroxidase produces 1268 nm emission characteristic of singlet oxygen. Lactoperoxidase also oxidizes indole-3-acetic acid to produce singlet oxygen, but in contrast to horseradish peroxidase, this enzyme system requires hydrogen peroxide. In both of these systems, the intensity of the 1268 nm emission is small due to quenchi...
متن کاملInactivity of Oxidation Products of Indole-3-acetic Acid on Ethylene Production in Mung Bean Hypocotyls.
The suggestion that indole-3-acetic acid (IAA)-stimulated ethylene production is associated with oxidative degradation of IAA and is mediated by 3-methyleneoxindole (MOI) has been tested in mung bean (Phaseolus aureus Roxb.) hypocotyl segments. While IAA actively stimulated ethylene production, MOI and indole-3-aldehyde, the major products of IAA oxidation, were inactive. Tissues treated with a...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1965
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(18)97370-9