Extended Data Figure 4. GA promotes GS and NR activities.

a, GS activities in roots of 2-week-old rice plants treated with 100 μM GA (GA₃) and/or 2 μM paclobutrazol (PAC), genotypes as indicated. Data shown as mean ± s.e.m. (n = 3). A two-sided Student’s t-test was used to generate the P values. b, GS activities in shoots of plants treated with GA and/or PAC, genotypes and treatments as indicated in a. Data shown as mean ± s.e.m. (n = 3). A two-sided Student’s t-test was used to generate the P values. c, NR activities in shoots of plants treated with GA and/or PAC, genotypes and treatments as indicated in a. Data shown as mean ± s.e.m. (n = 3). A two-sided Student’s t-test was used to generate the P values.