GFP-HFBI induces the formation of PBs in leaf tissues of transgenic tobacco 81V9 plants. A. Leaf cells from cultivar 81V9 transgenic plant 11 (0.39% TSP) expressing GFP-HFBI. Formation of PBs is evident. B. Close-up of picture A showing PBs ranging between 0.5 - 1.0 μm. C. Leaf cells from cultivar 81V9 transgenic plant 19 (1.17% TSP) expressing GFP-HFBI; PBs are more abundant. D. Close-up of picture C showing clusters of PBs. E. Leaf cells from cultivar I64 transgenic plant 19 (1.68% TSP) expressing GFP-HFBI. Abundant PBs are present. F. Close-up of E.