Table 2.
Concentration of Cd and Zn in the gut and fat body of S. exigua in the last instar of larvae
| Group | Cd concentration [mg/kg dry mass] | Zn concentration [mg/kg dry mass] | ||
|---|---|---|---|---|
| Gut | Fat body | Gut | Fat body | |
| Control treatment in the 11th generation | ||||
| Control | 0.2 ± 0.1a# | 0.5 ± 0.6a# | 268 ± 49a# | 72 ± 21a§ |
| Cd–C | 1.0 ± 0.9a# | 1.0 ± 1.5a# | 80 ± 30a# | 58 ± 7a# |
| Zn–C | 0.7 ± 0.5a# | 0.4 ± 0.2a# | 115 ± 38ab# | 72 ± 26a# |
| Cadmium treatment in the 11th generation | ||||
| C–Cd | 225.5 ± 92.4b# | 34.0 ± 10.5c§ | 195 ± 60ab# | 78 ± 6a§ |
| Cd–Cd | 422.2 ± 145.4b# | 34.5 ± 9.8c§ | 172 ± 48a# | 78 ± 28a§ |
| Zn–Cd | 371.2 ± 93.2b# | 9.3 ± 4.6b§ | 153 ± 8b# | 58 ± 20a§ |
| Zinc treatment in the 11th generation | ||||
| C–Zn | 0.7 ± 0.2a# | 2.4 ± 2.2a# | 1,081 ± 241c# | 85 ± 28a§ |
| Zn–Zn | 1.7 ± 2.6a# | 1.2 ± 1.7a# | 666 ± 143c# | 329 ± 53a§ |
| Cd–Zn | 5.0 ± 4.4a# | 0.3 ± 0.2a# | 1,405 ± 633c# | 68 ± 20a§ |
N = 5, mean value ± SD. Different letters indicate differences among experimental groups in the same organ (in columns), and the symbols # and § indicate differences between organs in the same treatment (in rows) (LSD test, P < 0.05). Descriptions of the strains and experimental groups are given in Fig. 1