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. 1976 Jul;58(1):77–81. doi: 10.1104/pp.58.1.77

Metabolism of Indole-3-Acetic Acid

II. Oxindole Pathway in Parthenocissus tricuspidata Crown-Gall Tissue Cultures 1

Robert H Hamilton a, Harold E Meyer a, Robert E Burke a, Chao S Feung a, Ralph O Mumma a
PMCID: PMC542183  PMID: 16659625

Abstract

An indoleacetic acid oxidase preparation from an acetone powder of Parthenocissus tricuspidata crown-gall tissue has been examined. An intermediate in the reaction is 3-hydroxymethyloxindole and nonenzymic conversion of it to 3-methyleneoxindole was observed. Neither reaction mixtures nor 3-methyleneoxindole have any auxin-like activity in Avena or wheat coleoptile bioassays. In vivo studies show that although 53% decarboxylation of indoleacetic acid was observed in 48 hours, only a small amount of 3-methyloxindole could be recovered from the medium. The other decarboxylated products remain to be identified but are not 3-hydroxymethyloxindole or 3-methyleneoxindole.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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