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IAA‐induced adventitious root formation in greenwood cuttings of Populus tremula and formation of 2‐indolone‐3‐acetylaspartic acid, a new metabolite of exogeneously applied indole‐3‐acetic acid
Author(s) -
Plüss Raphael,
Jenny Titus,
Meier Hans
Publication year - 1989
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1989.tb02068.x
Subject(s) - cutting , indole 3 acetic acid , metabolite , acetic acid , botany , biology , indole test , metabolic pathway , metabolism , biochemistry , chemistry , auxin , gene
When indole‐3‐acetic acid (IAA) is applied through the basal cut surface of greenwood cuttings from Populus tremula L. with the aim to induce adventitious roots, it is observed that a positive correlation between the number of new roots and the duration of the application exists only for the first 5 to 6 hours. This is most likely due to the induction, during this time, of a metabolic system that transforms IAA to compounds unable to provoke new roots. The most important of these compounds was identified as 2‐indolone‐3‐acetylaspartic acid (OxlAasp). The metabolic pathway from IAA to OxIAasp via indole‐3‐acetylaspartic acid was demonstrated by thin layer chromatography.