Table 2 Chemical forms of Cd in tissues of winter wheat (Triticum aestivum cv Zhengmai379) seedlings grown with low (0 μM), medium (5 μM), or high (10 μM) Se supply under low (5 μM) or high (25 μM) Cd stress for 21 d

Shoot

5

0

0.62 ± 0.02c

1.27 ± 0.04ab

19.78 ± 1.75a

1.36 ± 0.24b

0.10 ± 0.01a

0.06 ± 0.01a

5

0.91 ± 0.12bc

1.35 ± 0.10ab

14.79 ± 1.23b

0.74 ± 0.12b

0.11 ± 0.02a

0.06 ± 0.01a

10

0.80 ± 0.09bc

1.14 ± 0.15ab

12.41 ± 0.94b

0.55 ± 0.08b

0.10 ± 0.02a

0.04 ± 0.01a

25

0

1.28 ± 0.48b

1.73 ± 0.53a

14.51 ± 0.38b

1.75 ± 0.16a

0.13 ± 0.04a

0.07 ± 0.02a

5

2.33 ± 0.12a

1.10 ± 0.32ab

12.21 ± 0.44bc

0.83 ± 0.22b

0.10 ± 0.02a

0.07 ± 0.02a

10

0.51 ± 0.15c

0.97 ± 0.19b

9.59 ± 0.69c

0.71 ± 0.09b

0.13 ± 0.02a

0.07 ± 0.02a

Root

5

0

13.69 ± 0.80e

118.55 ± 3.97c

58.36 ± 4.81de

7.88 ± 1.73b

0.65 ± 0.05b

0.12 ± 0.03ab

5

17.17 ± 1.28d

80.45 ± 3.96d

67.25 ± 3.35 cd

12.46 ± 0.06b

0.67 ± 0.08b

0.14 ± 0.06ab

10

21.91 ± 1.86c

46.68 ± 3.13e

56.12 ± 3.52e

13.00 ± 0.91b

0.87 ± 0.13b

0.09 ± 0.04b

25

0

66.29 ± 0.53a

201.03 ± 5.11a

92.93 ± 1.75a

24.81 ± 4.66a

3.09 ± 1.17a

0.21 ± 0.05a

5

63.23 ± 1.03a

136.03 ± 3.56b

83.57 ± 1.67b

21.32 ± 4.03a

1.57 ± 0.46ab

0.12 ± 0.04ab

10

40.81 ± 1.11b

53.14 ± 3.53e

71.91 ± 3.78c

13.36 ± 1.69b

1.90 ± 0.73ab

0.16 ± 0.02ab