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. 2012 Jul 30;109(33):13446–13451. doi: 10.1073/pnas.1119992109

Fig. 1.

Fig. 1.

BRs mediate GA responses in etiolated seedlings. (A) Treatment with 1 μM EBR partially restored hypocotyl elongation of 6-d-old, dark-grown wild-type Col-0 seedlings treated with 1 μM PAC, whereas treatment with 50 μM GA3 did not reverse the growth defects of det2-1 mutants. (Scale bar: 0.5 cm.) (B) Heatmap representing the effect of EBR and GA treatments on global gene expression in GA- and BR-deficient backgrounds, respectively. Shown are the Z scores that correspond to PAC- versus mock-treated wild-type seedlings (PAC); wild-type seedlings treated with PAC and EBR versus PAC-treated seedlings (PAC+EBR); det2-1 mutant versus the wild type (det2); and GA3- versus mock-treated det2-1 mutants (det2+GA). (C) Venn diagram showing overlap among genes differentially regulated in GA- and in BR-deficient seedlings grown in darkness. (D) Venn diagram showing overlap among genes whose expression is restored by EBR in a GA-deficient background and genes misregulated in the pifQ mutant [data taken from Leivar et al. (21)].