Figure 5.

Time courses of g_st in response to elevated CO₂ (A), reduced air humidity (B), darkness (C), and O₃ pulse (D) together with corresponding changes in g_st values (E–H) in dominant mutants of protein phosphatases ABI1 and HAB1 (abi1-1C and hab1^G246D) and in the triple knockout mutant of ABI1, HAB1, and PP2CA (abi1-2hab1-1pp2ca-1). Changes in g_st values (E–H) were calculated as shown in Figure 3, A to C. Significant differences (P < 0.05; n = 5–50) are denoted with different lowercase letters.