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Chinese Journal of Plant Ecology >

2014 , Vol. 38 >Issue 5: 507 - 514

DOI: https://doi.org/10.3724/SP.J.1258.2014.00047

Research Articles

Effects of methyl viologen on the antioxidant system in cultured Salvia miltiorrhiza cells

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  • 1College of Life Sciences, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China
    2University Hospital & Clinics, Northwest Agriculture and Forestry University, Yangling, Shaanxi 712100, China

Received date: 2013-10-09

  Accepted date: 2014-01-10

  Online published: 2014-05-13

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Abstract

Aims We studied the effects of the methyl viologen (MV) in the culture medium on the antioxidant enzyme system in Salvia miltiorrhiza cells and investigated changes in the contents of H2O2, malonaldehyde (MDA), glutathione (GSH), and antioxidant enzyme. The differential expressions of superoxide dismutase (SOD), peroxidase (POD), and catalase (CAT) were discussed. Our objective was to explore if the MV could significantly affect the antioxidant system in the cultured S. miltiorrhiza cells.
Methods We treated the S. miltiorrhiza cells in suspension cultures with MV as an elicitor on the accumulation of H2O2, and used the diuron (DCMU) as an electron transporting antagonist. The biosynthesis of H2O2, MDA, and GSH, and the activities of SOD, CAT, and POD were determined by ultraviolet spectrophotometry. The specific isoenzymes bands of SOD, CAT, and POD were examined by acrylamide gel electrophoresis technique.
Important findings We found that MV significantly increased the accumulation of H2O2, MDA, and GSH, along with increased activities of CAT and POD as well as enhanced expressions and increased number of isoenzymes bands of CAT and POD; whereas DCMU inhibited the effects of MV. Results in this study suggest that MV could significantly enhance H2O2 accumulation in chloroplasts and regulate the antioxidant system in S. miltiorrhiza cells in suspension cultures, in order to maintain normal physiological conditions.

Key words： antioxidant system; chloroplast; DCMU; methyl viologen; polyacrylamide gel electrophoresis; Salvia miltiorrhiza

Cite this article

XING Bing-Yu,ZHU Nan,ZHANG Hong-Pei,YANG Xi-Ling,DONG Juan-E . Effects of methyl viologen on the antioxidant system in cultured Salvia miltiorrhiza cells[J]. Chinese Journal of Plant Ecology, 2014 , 38(5) : 507 -514 . DOI: 10.3724/SP.J.1258.2014.00047

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