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. 1982 Jul;70(1):283–286. doi: 10.1104/pp.70.1.283

Metabolism of Exogenous Indoleacetic Acid to Its Amide Conjugates in Cucumis sativus L. 1,2

William K Purves 1, Stanley M Hollenberg 1
PMCID: PMC1067126  PMID: 16662461

Abstract

Incubation of hypocotyl segments of light-grown Cucumis sativus L. in 0.1 millimolar 3-indoleacetic acid for 16 hours led to the formation of indoleacetylaspartate and indoleacetylglutamate. There was no evidence for the formation of other conjugates of 3-indoleacetic acid with individual amino acids during the period from 4 to 48 hours of incubation. Indoleacetylglutamate reached its maximum concentration after about 4 hours of incubation and indoleacetylaspartate after about 8 hours. These levels remained unchanged for at least 40 hours. Indoleacetylaspartate caused small increases in cucumber hypocotyl segment growth at high concentrations, 1 millimolar being more effective than 0.1 millimolar.

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Selected References

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

  1. Andreae W. A., Good N. E. The Formation of Indoleacetylaspartic Acid in Pea Seedlings. Plant Physiol. 1955 Jul;30(4):380–382. doi: 10.1104/pp.30.4.380. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Bandurski R. S., Schulze A. Concentration of Indole-3-acetic Acid and Its Derivatives in Plants. Plant Physiol. 1977 Aug;60(2):211–213. doi: 10.1104/pp.60.2.211. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Feung C. S., Hamilton R. H., Mumma R. O. Metabolism of Indole-3-Acetic Acid: III. Identification of Metabolites Isolated from Crown Gall Callus Tissue. Plant Physiol. 1976 Nov;58(5):666–669. doi: 10.1104/pp.58.5.666. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Feung C. S., Hamilton R. H., Mumma R. O. Metabolism of Indole-3-acetic Acid: IV. Biological Properties of Amino Acid Conjugates. Plant Physiol. 1977 Jan;59(1):91–93. doi: 10.1104/pp.59.1.91. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Feung C. S., Hamilton R. H., Witham F. H., Mumma R. O. The relative amounts and identification of some 2,4-dichlorophenoxyacetic Acid metabolites isolated from soybean cotyledon callus cultures. Plant Physiol. 1972 Jul;50(1):80–86. doi: 10.1104/pp.50.1.80. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Goren R., Bukovac M. J. Mechanism of naphthaleneacetic Acid conjugation: no effect of ethylene. Plant Physiol. 1973 May;51(5):907–913. doi: 10.1104/pp.51.5.907. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Hangarter R. P., Good N. E. Evidence That IAA Conjugates Are Slow-Release Sources of Free IAA in Plant Tissues. Plant Physiol. 1981 Dec;68(6):1424–1427. doi: 10.1104/pp.68.6.1424. [DOI] [PMC free article] [PubMed] [Google Scholar]

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