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Position: Home > Articles > Response of Glutathione and Glutathione S-transferase in Rice Seedlings Exposed to Cadmium Stress Rice Science 2008,15 (1) 73-76

Response of Glutathione and Glutathione S-transferase in Rice Seedlings Exposed to Cadmium Stress

作者：

Chunhua Zhang;Ying G

单位：

Demonstration Laboratory of Molecular Biological Techniques, Laboratory Center of Life Science, College of Life Science, Nanjing Agricultural University, Nanjing 210095, China;College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, Chin

关键词：

rice;cadmium stress;glutathione;glutathione S-transferase;enzyme activit

摘要：

A hydroponic culture experiment was done to investigate the effect of Cd stress on glutathione content (GSH) and glutathione S-transferase (GST, EC 2.5.1.18) activity in rice seedlings. The rice growth was severely inhibited when Cd level in the solution was higher than 10 mg/L. In rice shoots, GSH content and GST activity increased with the increasing Cd level, while in roots, GST was obviously inhibited by Cd treatments. Compared with shoots, the rice roots had higher GSH content and GST activity,indicating the ability of Cd detoxification was much higher in roots than in shoots. There was a significant correlation between Cd level and GSH content or GST activity, suggesting that both parameters may be used as biomarkers of Cd stress in rice.

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Response of Glutathione and Glutathione S-transferase in Rice Seedlings Exposed to Cadmium Stress

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