Table 1.

Iron content in leaves, stems, and roots of maize plants

Maize seedlings were pre-treated with 100 µM NaHS for 8 d and then grown in a nutrient solution containing 1 µM Fe(III)-EDTA or 50 µM Fe(III)-EDTA for 12 d.

	–Fe	–Fe+NaHS	+Fe	+Fe+NaHS
	Fe content (mg g−1 DW)
Leaves	0.137±0.016 a	0.166±0.006 b	0.180±0.001 c	0.218±0.002 d
Stems	0.174±0.002 a	0.209±0.013 b	0.222±0.012 b	0.215±0.010 b
Roots	0.424±0.020 a	0.481±0.005 b	1.115±0.046 c	2.270±0.038 d

Data are presented as means ± SE.

Different letters indicate significant differences at P<0.05 from different treatments.

DW, dry weight; –Fe, 1 μM Fe; –Fe+NaHS, seedlings were pre-treated with 100 µM NaHS and then treated with 1 µM Fe; +Fe, 50 µM Fe; +Fe+NaHS, seedlings were pre-treated with 100 µM NaHS and then treated with 50 µM Fe.