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Concentrations of IAA Metabolites in the Arabidopsis Root Apex.
Free IAA ([A]; closed triangles), the catabolite oxIAA ([A]; open triangles), and the IAA conjugates IAA-Asp ([B]; closed triangles) and IAA-Glu ([B]; open triangles) were quantified in 1-mm sections of the primary root apex from 6-DAG wild-type Arabidopsis Col-0 seedlings. Error bars indicate sd (n = 3).
