Table 3.
Measurement of antioxidant capacity of wild-type and ZmMYB59 transgenic plants
| Species | Lines | MDA (μmol/g) | CAT (U/g·min) | POD (U/g·min) | SOD (U/g.min) | APX (U/g·min) |
|---|---|---|---|---|---|---|
| Tobacco | WT | 22.8 ± 2.0b | 318.0 ± 39.0a | 125.6 ± 8.0a | 88.2 ± 10.0a | 50.4 ± 9.0a |
| OE1 | 24.1 ± 1.8ab | 184.7 ± 18.0b | 98.0 ± 7.1b | 75.2 ± 5.1b | 37.7 ± 1.5b | |
| OE2 | 27.7 ± 3.0a | 171.1 ± 9.0b | 93.8 ± 6.0b | 71.5 ± 3.0b | 35.8 ± 4.0b | |
| OE3 | 25.3 ± 1.6ab | 215.3 ± 15.2b | 103.0 ± 11.2b | 79.6 ± 4.8ab | 40.4 ± 4.1ab | |
| Rice | WT | 116.9 ± 7.2b | 10.9 ± 0.2a | 48.9 ± 3.6a | 53.3 ± 1.4a | 10.4 ± 0.3a |
| OE2 | 126.3 ± 1.6a | 9.5 ± 0.1b | 39.4 ± 2.2b | 30.1 ± 2.5c | 4.2 ± 0.1c | |
| OE4 | 124.0 ± 4.0ab | 10.0 ± 0.5b | 44.5 ± 6.1ab | 40.1 ± 8.0b | 6.6 ± 0.6b | |
| OE6 | 121.9 ± 2.3ab | 9.7 ± 0.4b | 40.7 ± 5.5ab | 32.3 ± 4.0bc | 4.9 ± 0.7c |
WT and OE represent wild-type and ZmMYB59 transgenic plants, respectively. MDA, CAT, POD, SOD, APX represent malondialdehyde, catalase, peroxidase, superoxide dismutase, ascorbate peroxidase, respectively. Means with standard deviations that do not followed by the same lower case letter between OE and WT lines significantly differ by ANOVA analysis at 5% level of significance. There are three replicates for each index, and 8 tobacco seedlings or 12 rice seedlings for each replicate.