Fig. 6. Transient expression assay showing MaC2H2-1/2 repress the promoter activity of MaACS1 and MaACO1. (a) Schematic representation of the double reporters and
effector plasmids used in the assay. The double-reporter plasmids contain the MaACS1 or MaACO1 promoter fused to LUC luciferase and REN luciferase driven by CaMV35S.
The effector plasmids contain the MaC2H2-1/2 genes driven by the CaMV35S. (b) MaC2H2-1/2 suppressed the promoter activity of MaACS1 and MaACO1. The reporter and
effector vectors were co-introduced into tobacco leaves by Agrobacterium tumefaciens strain GV3101. After 48 h from the infiltration, LUC and REN luciferase activities were
assayed, and the repression of MaACS1 and MaACO1 by MaC2H2-1/2 was showed by the ratio of LUC to REN. The ratio of LUC/REN of the control (transformation of pEAQ vector
with promoter-reporter) was used as calibrator (set as 1). Each value represents the means of six biological replicates, and vertical bars represent the S.E.
**
Significant
differences in values (P < 0.01) by Student'st-test, compared with the control