Figure 5.

OsGH3-2 modulates IAA and ABA contents. IAA (A), IAA-Asp (B), and ABA (C) in the mature seeds of OsGH3-2 overexpression lines (OX), RNAi lines (RNAi), and wild-type (WT; n = 6). D, Fold change of relative transcript level of the key genes related to ABA biosynthesis, catabolism and signaling and LEAs proteins in the transgenic lines in developing seeds at 6 d after pollination. The transcript levels of each assayed gene are relative to the geometric average of the two reference genes. The error bars represent standard error (n = 8). Asterisks (*, **) indicate significant differences compared with WT at P < 0.05 and P < 0.01 by Student’s t test, respectively