Table III. Relative changes (average ± se) in net assimilation rate (R_c,A) and isoprene emission rate (R_c,I) in control and malate-inhibited hybrid aspen (clone H200) leaves upon transition from CO₂ concentrations of 400 to 1,200 μmol mol⁻¹ and from oxygen concentrations of 21% to 2% at CO₂ concentrations of 400 and 1,200 μmol mol⁻¹.

Transition	Rc,A		Rc,I
	Control	Malate Treated	Control	Malate Treated
400→1,200 μmol mol−1 CO2, 21% oxygen	0.638 ± 0.006 a	0.737 ± 0.017 b	−0.574 ± 0.034 a	−0.614 ± 0.017 a
21%→2% oxygen, 400 μmol mol−1 CO2	0.406 ± 0.015 a	0.555 ± 0.019 b	0.160 ± 0.008 a	0.257 ± 0.021 b
21%→2% oxygen, 1,200 μmol mol−1 CO2	−0.146 ± 0.017 a	−0.200 ± 0.010 b	−0.376 ± 0.015 a	−0.242 ± 0.021 b

Experimental treatments, measurement conditions, number of replicates, and statistical analyses were as in Table I. R_c,A = ΔA/Ā and R_c,I = ΔI/Ī, where ΔA and ΔI are differences between steady-state net assimilation and isoprene emission rates estimated before and after the change in leaf chamber gas composition, and Ā and Ī are averages for the two steady states (Rasulov et al., 2016).