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Article

Arabidopsis thaliana auxotrophs reveal a tryptophan-independent biosynthetic pathway for indole-3-acetic acid.

Proceedings of the National Academy of Sciences of the United States of America - 1 Nov 1993

Normanly J, Cohen J D, Fink G R

Abstract excerpt

We used tryptophan auxotrophs of the dicot Arabidopsis thaliana (wall cress) to determine whether tryptophan has the capacity to serve as a precursor to the auxin, indole-3-acetic acid (IAA). Quantitative gas chromatography-selected ion monitoring-mass spectrometry (GC-SIM-MS) revealed that the trp2-1 mutant, which is defective in the conversion of indole to tryptophan, accumulated amide- and ester-linked IAA at...

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Identifiers

PMID: 8234297
DOI: 10.1073/pnas.90.21.10355
PMCID: PMC47773

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