Fig. 6. Subcellular localization of the GFP-Pphb7 fusion protein. (A-D) A rhizoid from GFP-Pphb7-1. The apical (A), second (B), third (C) and fourth (D) cells were examined using Nomarski optics (left), by GFP fluorescence (middle), and by chlorophyll fluorescence (right). (E-H) A rhizoid that expressed an intact GFP under the control of the GH3 promoter (E-G) and a wild-type rhizoid (H-J). The apical (E,H), third (F,I), and fourth (G,J) cells were examined using Nomarski optics (left) and GFP fluorescence (right). Scale bar: 50 µm for all panels.