. 2014 Apr 4;165(2):608–617. doi: 10.1104/pp.114.237602

Table I. Physiological and biochemical characteristics of the CA mutants.

		Net Rate of CO₂ Assimilation^a
Sample	Quantum Yield	Low CO₂ (9.3 Pa)	Ambient CO₂ (37.2 Pa)	High CO₂ (139.5 Pa)	Rubisco Activity	PEPC Activity	Total Leaf Nitrogen	Dry Biomass
	mol mol⁻¹	μmol m⁻² s⁻¹					mg g⁻¹ dry wt	g
ca1-m1
Wild type	0.027 ± 0.003	10.3 ± 0.5	27.5 ± 1.2	27.7 ± 0.5	38.9 ± 1.8	217.7 ± 30.6	52.5 ± 2.1	6.1 ± 0.6
Heterozygote	0.027 ± 0.001	8.3 ± 0.5	23.0 ± 1.7	25.5 ± 0.3	39.8 ± 2.6	221.8 ± 29.8	50.9 ± 1.8	7.6 ± 0.6
Homozygote	0.030 ± 0.003	8.7 ± 0.3	26.1 ± 0.6	29.8 ± 1.0	38.9 ± 3.8	212.8 ± 23.1	54.7 ± 4.3	6.8 ± 0.7
ca1-m2
Wild type	0.031 ± 0.001	9.6 ± 0.3	27.6 ± 0.8	29.5 ± 1.5	38.7 ± 5.2	176.0 ± 24.9	54.3 ± 1.7	7.7 ± 0.2
Heterozygote	0.034 ± 0.001	9.0 ± 0.1	26.8 ± 0.6	30.1 ± 1.9	44.7 ± 4.3	196.9 ± 27.2	52.0 ± 2.5	7.4 ± 1.7
Homozygote	0.031 ± 0.001	8.0 ± 0.3	25.5 ± 0.9	29.5 ± 0.8	40.6 ± 3.5	199.0 ± 54.4	53.0 ± 1.3	7.9 ± 1.2
ca1ca2
Wild type	0.029 ± 0.001	8.5 ± 0.3	23.1 ± 1.7	25.0 ± 2.2	37.3 ± 0.9	195.8 ± 34.4	48.1 ± 1.0	7.7 ± 0.7
Heterozygote	0.024 ± 0.001	7.3 ± 0.3	21.6 ± 0.9	26.3 ± 1.4	38.1 ± 1.0	180.9 ± 27.4	48.2 ± 0.7	7.6 ± 0.2
Homozygote	0.029 ± 0.001	6.2 ± 0.2	21.2 ± 0.7	28.7 ± 0.9	37.4 ± 1.0	220.7 ± 15.9	53.3 ± 2.1	9.9 ± 0.7
ANOVAs^b
Genotype	ns	WT^a, HZ^ab, HM^b	ns	ns	ns	ns	ns	ns
Line	ns	m1^a, m2^a, ca1ca2^b	m1^ab, m2^a, ca1ca2^b	ns	ns	ns	ns	ns
Interaction	ns	ns	ns	ns	ns	ns	ns	ns

Net rate of CO₂ assimilation was measured at 9.3, 37.2, and 139.5 Pa pCO₂ in maize grown under high pCO₂ (928 Pa).

Significant differences are indicated by different superior letters according to a two-way ANOVA with P < 0.05; ns, not significant. HM, Homozygous; HZ, heterozygous; WT, wild type.