Figure 1

(a) Light response of assimilation rate for fully emerged A. donax leaves measured at 21% oxygen (closed symbols) and 2% oxygen (open symbols). (b) ci (triangle) and gs (square) at a ca of 400 μmol mol−1, leaf temperature of 25 °C and VPD of between 0.8 and 1.1 kPa (values are means and standard errors, for 5 different plants).