Effects of Selenium on Antioxidative System and H2O2 Content in Spinach

ACTA HORTICULTURAE SINICA ›› 2002, Vol. 29 ›› Issue (6): 547-550.

• 研究论文 • Previous Articles Next Articles

Effects of Selenium on Antioxidative System and H₂O₂ Content in Spinach

Li Dengchao^1,2, Zhu Zhujun¹, and Xu Zhihao³

(¹ Department of Horticulture , Zhejiang University , Hangzhou 310029 , China ;　² Zhejiang Forestry College , Lin’an 311300 , China ;　³ Institute of Horticulture , Zhejiang Academy of Agricultural Sciences , Hangzhou 310021 , China)

Received:1900-01-01 Revised:1900-01-01 Online:2002-12-25 Published:2002-12-25

Abstract

Abstract: The effects of different concentrations of seleniumon the growth , the activities of superoxide dismutase (SOD) , catalase (CAT) , ascorbate peroxidase (APX) , dehydroascorbate reductase (DHAR) , glutathione
peroxidase (GSH2PX) and the content of ascorbate (AsA) , hydrogen peroxide (H2O2) were studied in the hydroponic spinach. The results showed that the growth was enhanced by selenium at the low level ( ≤0. 1 mg·L^-1) , but inhibited at the high level (1. 0 mg·L^-1) . The activities of SOD , CAT and GSH2PX were increased and the activities of APX and DHAR were decreased. The contents of AsA and H2O2 decreased with the increasing selenite concentration , whereas , H₂O₂ content decreased firstly and then increased. From our results , we conclude that proper selenite concentration could increase the yield and antioxidative activity of spinach.

Key words: Spinach, Selenium, Antioxidative activity, Ascorbate, Hydrogen peroxide

CLC Number:

S 636. 1

Li Dengchao;Zhu Zhujun;and Xu Zhihao. Effects of Selenium on Antioxidative System and H₂O₂ Content in Spinach[J]. ACTA HORTICULTURAE SINICA, 2002, 29(6): 547-550.

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Effects of Selenium on Antioxidative System and H₂O₂ Content in Spinach

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