Fig. 4.
Histochemical staining for GUS activity in transgenic rice plants expressing a POsMYB1::GUS fusion. Plants were grown hydroponically and supplied with sufficient Pi. (A–D) Different zones of primary root. (E–G) Cross-sections of the root segment shown in A (E), B (F), and C (G). (H) Cross-section of the basal part of lateral root. (I) Basal part of lateral root. (J) Root tip of lateral root. (K) Cross-section of leaf sheath. (L) Cross-section of leaf blade. (M) Stamens. (N) Pistil. (O) Lemma and palea. Scale bars in A–D and M–O indicate 100 µm; bars in E–L indicate 500 µm.