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Identification of 3-(O-beta-Glucosyl)-2-Indolone-3-Acetylaspartic Acid As a New Indole-3-Acetic Acid Metabolite in Vicia Seedlings

Overview
Journal Plant Physiol
Specialty Physiology
Date 1985 Nov 1
PMID 16664470
Citations 10
Authors
S Tsurumi
S Wada
Affiliations
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Abstract

A new indole-3-acetic acid metabolite was isolated from broad bean (Vicia faba L. cv Chukyo) seedlings. It was a conjugate of dioxindole-3-acetic acid, aspartic acid, and glucose and was identified as 3-(O-beta-glucosyl)-2-indolone-3-acetylaspartic acid (molecular weight 484) from ultraviolet, infrared, nuclear magnetic resonance, and mass spectra. Its natural content in 4-day-old Vicia seedlings was estimated to be 8.6 nanomoles per gram fresh weight. It was suggested that oxidation of indole-3-acetic acid not accompanied by decarboxylation might regulate endogenous level of the hormone.

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