Fig. 4
From: OsPHR3 affects the traits governing nitrogen homeostasis in rice
Mutation in OsPHR3 affects influx and translocation of 15N-NO3− and 15N-NH4+ under different N regimes. Seeds of the WT and mutants (osphr3–1 and 3–2) were grown hydroponically in IRRI solution for 2 weeks and then deprived of N for 3 d. Seedlings were then treated with 15N-NO3− and 15N-NH4+ under 2.5 mM N and 0.25 mM N conditions for 10 min and 1 d for determining their influx and translocation, respectively. The influx rate of (a) 15N-NO3− and (c) 15N-NH4+. The translocation ratio of (b) 15N-NO3− and (d) 15N-NH4+. Values are means ±SE (n = 5) and different letters on the histograms indicate that the values differ significantly (P < 0.05, one-way ANOVA)