Figure 11.

Time-resolved patterns of intact whole-plant rosette stomatal conductances in response to elevated (A) and reduced (B) CO₂ concentration in cngc5-1 cngc6-1 double mutant and Columbia (Col) wild-type plants. To analyze elevated CO₂-induced stomatal closure, the ambient CO₂ concentration was increased from 400 to 800 μL L⁻¹ at time zero (A). To analyze low-CO₂-induced stomatal opening, CO₂ was decreased from 400 to 0 μL L⁻¹ at time zero (B). Data represent averages of 12 individual plants ± se.