Fig. 3.

Expression profile of vacuolar Na⁺/H⁺ antiporter isoform 1 (OsNHX1) (a), isoform 3 (OsNHX3) (b), isoform 5 (OsNHX5) (c), plasma membrane Na⁺/H⁺ antiporter isoform 2 (OsHKT2;1) (d), and vacuolar pyrophosphatase (OsAPV1) (e) in leaf tissues of Pokkali and IR29, when exposed to control (0 mM NaCl) and salt stress (200 mM NaCl) for 0, 15, 30, 45, 60,180, and 360 min. Error bars represent standard error (± SE)