Table 2.

Effect of Fe deficiency on GSH (glutathione) concentration in roots and leaves of Arabidopsis WT Columbia and opt3-2 mutant plants.

Compound	Genotype	Roots		Leaves
		+Fe	–Fe	+Fe	–Fe
GSH (nmol⋅g-1FW)	Col	53 ± 4	144 ± 1∗∗	146 ± 10	137 ± 8
	opt3-2	43 ± 9	60 ± 15	286 ± 12	138 ± 3∗∗

Plants were grown in nutrient solution with Fe (+Fe) and half of them transferred to nutrient solution without Fe (-Fe) during the last 2 days. Data represent the mean ± SE of six replicates. Significant differences from the +Fe treatment are indicated: ^∗∗P < 0.01.