Figure 3.
Tissue-specific expression of sps-gus1 in rice plants. Samples were processed for the localization of GUS activity as described in “Materials and Methods.” A, Leaf blade; B, higher magnification of a leaf blade midrib; C, upper leaf sheath; D, lower leaf sheath; E, higher magnification of D; F, base of an sheathed leaf; G and H, primary leaves of 5-d-old (G) and 10-d-old (H) seedlings grown under photoperiod. I to K, Half sections of seedlings during germination d 0 (I), d 3 (J), and d 4 (K). Primary leaves (L–N) and seeds (O–Q) of 7-d-old seedlings grown under photoperiod (L and O), darkness (M and P), and photoperiod (N and Q) and in presence of NF. R, Primary leaf of a 10-d-old plant grown in darkness. S, Roots; T, anther of an immature inflorescence; U, pollen from the immature inflorescence.