Table 3. Correlation analysis of sporangium generation, the expression levels of gene(csn4 and csn7), SOD activity, CAT activity and MDA content of P. nicotianae under Zn treatment.
With Zn concentration (three replicates) as the control and other indicators as variables, the correlations between the indicators were analyzed with the SPSS statistical software.
| Correlations | Sporangium number | Ecsn4/Etub (%) | Ecsn7/Etub (%) | SOD activity (U/g FW) | CAT activity (U/mg FW) | MDA content (nmol/g FW) |
|---|---|---|---|---|---|---|
| Sporangium number | 1 | |||||
| Ecsn4/Etub (%) | 0.824** | 1 | ||||
| Ecsn7/Etub (%) | 0.662** | 0.539* | 1 | |||
| SOD activity (U/g FW) | −0.578* | −0.540* | −0.084 | 1 | ||
| CAT activity (U/mg FW) | −0.505* | −0.585* | −0.083 | 0.993** | 1 | |
| MDA content (nmol/g FW) | −0.392 | −0.560* | 0.111 | 0.226 | 0.226 | 1 |
Notes:
*
Significantly correlated (P < 0.05).
**
Extremely significant correlation (P < 0.01).