Table 4 PTE and other element concentrations measured in the aerial parts (AP) ant root parts (RP) of the individuals of Coronilla juncea at the different sites (S, E1, E2) and soil depths.

From: Coronilla juncea, a native candidate for phytostabilization of potentially toxic elements and restoration of Mediterranean soils

Site, organ and depth

PTE and other elements concentrations (mg kg−1)

Al

As

Cu

Fe

Mn

Pb

Sb

Ti

Zn

Sormiou (S)

S AP

326.9 ± 223.1 a

 < LOD

9 ± 3.5 a

146.3 ± 65.4 bc

31.4 ± 10.2 a

3.5 ± 4.1 a

 < LOD

3.2 ± 1.5 b

70.8 ± 36.6 a

S RP 0–10 cm

345.3 ± 265 a

 < LOD

0.8 ± 0.7 b

35 ± 78.3 c

 < LOD

1.2 ± 1.2 a

 < LOD

4.4 ± 1.9 b

15.3 ± 14.7 b

S RP 10–20 cm

631.8 ± 372.9 a

 < LOD

7.2 ± 4.1 a

444.5 ± 269.4 a

17.6 ± 6.4 b

2.4 ± 1.7 a

 < LOD

8.8 ± 5.3 a

17.8 ± 15.2 b

Average RP

377.1 ± 331.7

 < LOD

2.3 ± 4.4

129.2 ± 277.2

5.0 ± 9.6

1.1 ± 1.4

 < LOD

2.8 ± 5.4

14.0 ± 14.1

Escalette 1 (E1)

E1 AP

162.4 ± 79.6 b

4.9 ± 4.1 a

4.2 ± 0.7 a

117.9 ± 51.3 b

26.0 ± 3.7 a

59.7 ± 29.9 a

2.3 ± 1.6 a

2.3 ± 1.3 b

88.6 ± 28.9 a

E1 RP 0–10 cm

739.8 ± 569.4 a

22.8 ± 17.5 a

7.8 ± 4.3 a

482.6 ± 343.1 a

15.8 ± 10.3 a

271.6 ± 183.4 a

6.3 ± 3.7 a

9.9 ± 8.6 a

97.4 ± 62.3 a

E1 RP 10–20 cm

1736.6 ± 32.5 ab

50.5 ± 19.6 a

5.7 ± 1.2 a

1116.9 ± 74.4 ab

22.9 ± 1.9 a

463 ± 251.7 a

13 ± 3.1 a

22.7 ± 1.3 ab

127.1 ± 47.6 a

Average RP

693.6 ± 673.0

22.6 ± 21.2

6.57 ± 3.6

462.0 ± 418.5

13.9 ± 9.1

271.7 ± 204.2

6.1 ± 2.6

8.8 ± 9.4

93.3 ± 56.3

Escalette 2 (E2)

E2 AP

140.1 ± 119.8 b

9.4 ± 11.8 b

3.8 ± 0.9 b

90.9 ± 78.4 b

30.2 ± 7.9 a

86.5 ± 91.1 b

5.4 ± 4.3 b

1.8 ± 1.7 b

138.7 ± 18.7 a

E2 RP 0–10 cm

718.2 ± 341.5 a

96.4 ± 50.4 a

6.6 ± 2.6 a

498.7 ± 241.8 a

16.9 ± 7.3 a

742.4 ± 405.1 a

44.5 ± 23.1 a

10.5 ± 4.7 a

280.7 ± 161.3 a

E2 RP 10–20 cm

1706.6 ± 1105.5 ab

38.3 ± 2.4 ab

11 ± 7.6 ab

1104.3 ± 744.4 ab

30.5 ± 7.8 a

310.2 ± 37.8 ab

35.1 ± 3.4 ab

25.4 ± 14.3 ab

208.7 ± 66.3 a

Average RP

677.3 ± 717.0

71.7 ± 49.9

6.0 ± 4.3

463.2 ± 467.6

16.3 ± 9.5

553.3 ± 392.6

25.8 ± 24.6

10.1 ± 10.0

233.1 ± 138.9

  1. The average root part concentrations (in italics) have been calculated using mean concentrations and root biomasses per depth. For a same element and a same site, different letters indicate a significant difference between sites, organs and/or depths (Wilcoxon test, p-value ≤ 0.05).