Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Steady-state NH4+ influx into roots of intact cv IR-72 rice seedlings as a function of [NH4+]o in the high-affinity transport range (2.5–500 μm) at 50 and 15% O2. • (dotted line for isotherm fit), Plants exposed to 50% O2; and ▪ (solid line for isotherm fit), plants exposed to 15% O2. See Figure 2.
