Table 1.
Zinc and cerium concentrations in root and shoot of Pisum sativum L. grown under the sole or combined CeO2 and ZnO NPs treatments accompanied by translocation factors (TF). Concentrations of nanoparticles are given in mg/L of elemental cerium or zinc, respectively. The cultivation time was 12 days. Data are the means ± SD (n = 6). Distinct letters show the statistically significant differences among treatments as calculated with Tukey’s HSD post hoc test (p = 0.95). nd: concentration below the detection limit (18 µg/L).
| Treatment | Zinc Concentration (mg/kg DW) |
TF | Cerium Concentrations (mg/kg DW) |
TF | ||
|---|---|---|---|---|---|---|
| Root | Shoot | Root | Shoot | |||
| Control | 97.8 ± 4.5 d | 61.4 ± 1.1 d | 0.63 | nd | nd | nd |
| Ce 100 | 74.3 ± 5.5 d | 52.4 ± 2.3 d | 0.71 | 14,874 ± 495 b | 110 ± 11 c | 0.01 |
| Ce 200 | 68.3 ± 6.2 d | 51.5 ± 2.2 d | 0.75 | 16,977 ± 1067 a | 206 ± 14 a | 0.01 |
| Zn 100 | 25,921 ± 2307 b | 1160 ± 61 bc | 0.04 | nd | nd | nd |
| Zn 200 | 30,522 ± 2140 a | 1455 ± 54 a | 0.05 | nd | nd | nd |
| Ce 100 + Zn 100 | 18,192 ± 703 c | 1079 ± 113 c | 0.06 | 6058 ± 824 d | 120 ± 7 bc | 0.02 |
| Ce 200 + Zn 200 | 28,097 ± 3773 ab | 1236 ± 88 b | 0.04 | 10,301 ± 1484 c | 142 ± 10 b | 0.01 |