| Positive effect of calcium on oxidative damage in maize seedling under chilling stress |
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| DOI：10.7606/j.issn.1000-7601.2014.01.025 |
| Key Words: maize seedling calcium chilling stress oxidative damage |
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| Abstract: |
| The effect of calcium at different concentrations (0, 5, 10, 15 mmol·L-1 and 20 mmol·L-1) on physiological characteristics of maize seedling leaves under chilling stress was studied. The results showed that compared with the CK, the growth of maize seedling were in
hibited and the accumulation of soluble protein and soluble sugar content were maintained, the antioxidant enzymes activities and proline content were reduced, whereas MDA content and membrane permeability were increased under chilling stress. The Ca2+ treatment with the concentration ranging from 5 to 10 mmol·L-1 showed mitigating effect of maintaining membrane permeability and the activities of SOD, POD and CAT, and promoting the accumulation of proline, soluble sugar and soluble protein content in maize seedling. In addition, concentration of 10 mmol·L-1 Ca2+ showed the largest positive influence on seedling growth. |
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