Figure 4.

Expression of a MIR159c:GUS transgene is restricted to specific cell types. (A) Diagram showing the sequences used for construction of the MIR159c:GUS transgene in the vector pBI101.1. (B) β-Glucuronidase (GUS)-stained MIR159c:GUS inflorescences. OA = old anthers; YA = young anthers. (C) Dark field microscopy of a transverse section of a MIR159c:GUS anther. GUS staining is shown by pink crystals. T = tapetum. (D) GUS staining (48 h) in a 14-day-old MIR159c:GUS plant. H = hydanthodes.