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Figure 8 | BMC Plant Biology

Figure 8

From: Developmentally distinct activities of the exocyst enable rapid cell elongation and determine meristem size during primary root growth in Arabidopsis

Figure 8

Root growth in exocyst mutants shows a mild alteration in response to brassinosteroids. (A) Dose–response of exocyst mutants to exogenous epi-brassinolide shows mild rescue. (B) Combinations of exocyst mutations (sec8-4 or exo70A1) and brassinosteroid mutations (det2-1 or bri1) lead to more severe root growth defects; the combinations with exo70A1 are synergistic if interpreted by a multiplicative model. (C) qRT-PCR expression analysis indicates that the expression of brassinosteroid synthesis genes (CPD and DWF4) are reduced in exocyst mutants, contrary to what would be expected if the mutants had a defect in the canonical brassinosteroid signaling pathway.

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