欢迎访问《中国农学通报》，
中国农学通报

中国农学通报 ›› 2009, Vol. 25 ›› Issue (20): 79-81.

所属专题： 生物技术； 油料作物； 园艺

• 食品 营养 检测 安全 • 上一篇    下一篇

汞对萝卜和油菜叶绿素含量和过氧化物酶活性的影响

姜 成1,申晓慧2   

  • 收稿日期:2009-05-25 修回日期:2009-06-16 出版日期:2009-10-20 发布日期:2009-10-20

Effects of Mercury on Chlorophyll Content and Peroxidase Activity of Radish and Cole

  • Received:2009-05-25 Revised:2009-06-16 Online:2009-10-20 Published:2009-10-20

PDF (PC)

954

摘要：

利用汞对萝卜和油菜种子进行处理，探讨了汞对萝卜和油菜幼苗叶绿素含量和过氧化物酶活性的影响。结果表明：随着汞离子浓度的增加，萝卜和油菜幼苗叶绿素含量下降，且叶绿素a含量的下降幅度大于叶绿素b。两种幼苗在形态上出现黄化现象。萝卜幼苗和油菜幼苗的过氧化物酶的活性受汞影响不同。萝卜幼苗根系、茎叶过氧化物酶的活性随着汞离子浓度增加而有明显升高趋势。而油菜幼苗根系、茎叶过氧化物酶活性在0.5×10-3mol/L的汞浓度下，略有升高，随着汞浓度的增加，过氧化物酶活性下降。综上所述，萝卜对汞毒害的耐性要强于油菜。

关键词: 生物降解材料, 生物降解材料, 聚乳酸, 性能

Abstract:

Investigate the influence of mercury on the chlorophyll content and peroxidase activity of radish and cole seedlings. The results showed that the content of chlorophyll a and b of radish and cole seedling had reduced, especially chlorophyll a reduced greatly. The etiolating appeared in these seedlings. The effects of Hg2+ on enzyme activity of peroxides of radish and cole seedlings were quite different. The enzyme activity of peroxides of root system and shoot of radish seeding was significantly increased. While the enzyme activity of peroxides of cole seedling was increased under 0.5×10-3mol/L, and under other concentrations of Hg2+ was decreased. According these comparative experiments, radish was more tolerance to mercury than cole.