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(A) Phenotype of axr2-1 and Col wild type plants. The bar represents 1 cm. (B) Using the constitutive repressor mutant axr2-1 (iaa7) to identify putative target genes of the pathway regulated by IAA7 at 28 and 37 days after germination (d). Expression was normalized to YLS8 of Arabidopsis. The arrow points to a putative target gene, which shows the expected regulation pattern. ABP1: auxin binding protein 1; ExpA17: expansin A17; LTP: lipid transfer protein.
