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Trends Plant Sci. 2003 May;8(5):197-9.

Two genetically discrete pathways convert tryptophan to auxin: more redundancy in auxin biosynthesis.

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  • 1Department of Horticultural Science, University of Minnesota, Saint Paul, MN 55108, USA. cohen047@tc.umn.edu

Abstract

The answer to the simple question of how plants make auxin has proven to be inordinately complex. Recent in planta studies in Arabidopsis have uncovered additional complexity in auxin biosynthesis. Two distinct pathways from tryptophan to the intermediate indoleacetaldoxime were identified. Genic, as well as functional redundancy, appear to be characteristic for auxin biosynthesis and plants might have evolved many different solutions for making and regulating auxin.

PMID:
12758033
[PubMed - indexed for MEDLINE]
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