Variation of glutathione and glutathione S-transferase in rice under Cd stress

摘要：

A hydroponic experiment was conducted to assess the effect of Cd on rice growth, glutathione (GSH) and glutathione S-transferase (GDT) activity in rice shoot and root tissues. The results showed that rice growth was severely depressed when solution Cd was higher than lOmg/L. The GSH content and GST activity in rice shoot increased with Cd concentration. The content of GSH and GST activity was considerably higher in rice root, indicating that the detoxification process was more pronounced. The variation of GST activity differed for shoot and root tissues, probably because the identities and functions of GST isozymes were divergent. Statistically significant relationships were observed between Cd exposure and rice response, suggesting that GSH content and GST activity may be good indicators for Cd toxicity.

关键词： Cd rice growth glutathione glutathione S-transferase

作者: C. H. Zhang Y. Ge

作者单位: Demonstration Laboratory of Molecular Biological Techniques, College of Life Science College of Resources and Environmental Sciences, NanJing Agricutural University, 1 Weigang, Nanjing, 210095, P. R. China

会议类型: 国际会议

会议名称: 第九届痕量元素生物地球化学国际会议(9th International Conference on the Biogeochemistry of Trace Elements)

会议地点: 北京

会议语种:英文

页码: 748-749

在线出版日期: 2007-07-15（万方平台首次上网日期，不代表论文的发表时间）