Interdependency of Brassinosteroid and Auxin Signaling in Arabidopsis
Figure 5
A Model of BR–Auxin Interaction
Auxin and BR signals are likely integrated on promoters of shared target genes. The node(s) of intersection between auxin and BR pathways must be downstream of BES1 and Aux/IAAs and upstream of gene expression. One likely mechanism is via regulation of transcriptional complexes, such as those containing the ARFs.