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Effect of caffeic and p ‐coumaric acids on indole‐3‐acetic acid catabolism
Author(s) -
Tafuri F.,
Businelli M.,
Scarponi L.
Publication year - 1972
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740231205
Subject(s) - caffeic acid , indole 3 acetic acid , p coumaric acid , chemistry , catabolism , acetic acid , biochemistry , chromatography , enzyme , auxin , ferulic acid , antioxidant , gene
Caffeic acid acts as an inhibitor of the indole‐3‐acetic acid (IAA)‐oxidising system and produces a large increase in the endogenous level of bound IAA extracted from Lens roots. On the contrary p ‐coumaric acid acts as an activator. The conversion by phenolase of p ‐coumaric acid to caffeic acid in the plant kingdom could play an important role in the in vivo regulation of IAA oxidase. IAA determination was carried out by gas chromatography (g.c.) of an ethanolic extract from the roots.