The 35S-GUS plasmid expresses the GUS reporter gene from the CaMV 35S-promoter. The T-DNAs of all these reporter and control plasmids contain a selectable hygromycin resistance marker. Binary vector pLh-0 contains the coding sequence of the lacIHis mutant under control of the CaMV 35S-promoter. pLh-Gal4 is identical but contains transcription activation domain-II of Gal4 (residues 768–881) inserted in-frame in the lacIHis C-terminal coding region.