Figure 1.

Relative expression of auxin biosynthesis and metabolism genes in response to photoperiod stress in wild type and ahk2,3. (a) Schematic overview of photoperiod stress treatment and sampling time points for gene expression analysis (0, 4, 6 and 12 h after PLP treatment; gray arrows). (b) Relative expression levels of auxin biosynthesis and metabolism genes TRYPTOPHAN AMINOTRANSFERASE OF ARABIDOPSIS (TAA1), TAA-RELATED (TAR), YUCCA (YUC), DIOXYGENASE FOR AUXIN OXIDATION (DAO), IAA-ALANINE-RESISTANT 3 (IAR3), IAA-LEUCINE-RESISTANT 1 (ILR1), IAA-LEUCINE-RESISTANT-LIKE (ILL) and GRETCHEN HAGEN 3 (GH3) 0, 4, 6 and 12 h after the PLP treatment compared to respective control plants. Stars indicate a significant difference between the indicated genotypes/conditions (p ≤ 0.05; n = 3; log₂-fold values are depicted in Supplementary Table S1). Data were extracted from [33].