. 2004 Apr;134(4):1414–1426. doi: 10.1104/pp.103.036764

Table III.

ROS-scavenging activity in MPAO or PCuAO transgenic tobacco plants

	APX (nmol ASCoxidized min⁻¹ mg⁻¹ prot.)	Catalase (nmol H₂O₂ min⁻¹ mg⁻¹prot.)	DHAR (nmol DHAreducedmin⁻¹ mg⁻¹ prot.)	Ascorbate Pool ([ASC + DHA]) (nmol g⁻¹ fresh wt)	Ascorbate Redox State ([ASC] / [ASC+DHA])
WT	326 ± 27	287 ± 7	191 ± 17	1,470 ± 30	0.87
MPAO	383 ± 17^*	295 ± 15	202 ± 22	1,300 ± 110	0.86
PCuAO	401 ± 23^*	258 ± 36	269 ± 27^*	1,550 ± 80^*	0.91^*

Ascorbate content and redox enzymes were determined in leaves of 30-d-old wild-type and transgenic plants. The values are the means of four experiments ± sd.

Differences from the wild type were significant at P < 0.05 (Student's t paired test).