Response of Physiology of Actinidia chinensis Planch to Selenium
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Abstract:
The effects of selenium on physiological and biochemical characteristics in Actinidia chinensis Planch leaves were studied. The plants were cultivated with different selenium (Se) concentrations (0.15, 0.3, 0.5 mg/kg Na2SeO3). When the flower buds appeared, the leaves were harvested for measurement of chlorophyll content and activities of four antioxidant enzymes. The results showed that selenium added to Actinidia chinensis Planch leaves increased chlorophyll content, the activity of glutathione peroxidase (GPx), superoxide dismutase (SOD) and peroxidase (POD), while decreased the activities of superoxide dismutase (SOD) and peroxidase (POD) when Selenium was over 0.5 mg/kg. Therefore, treatments with suitable concentration of selenium could enhance the antioxidant abilities of Actinidia chinensis Planch leaves.
