Effect of Astaxanthin on the Growth and Resistance of Strawberry Seedling under Salt Stress

摘要

In this experiment, we studied the effects of astaxanthin on the growth and resistance of strawberry tissue culture seedlings under salt stress. The samples were treated with astaxanthin concentrations of 0, 5, 10, 50, 100, 200 μmol/L. The results show that there is a rise in content of chlorophyll, ascorbic acid and the antioxidant capacity of CAT in strawberry seedlings which were treated with astaxanthin of 5, 10, 50 and 100 μmol/L, compared with the controls; meanwhile at the same time MDA showed a downward trend under the treatment. And the effect of 10 and 50 μmol/L astaxanthin treatments is the best. Astaxanthin of 200 μmol/L contributed to the damage to the strawberry seedlings under salt stress. The proper concentration of astaxanthin can improve the physiological activity of strawberry seedlings and enhance the salt tolerance of strawberry seedlings.