| 镉污染对水鳖的毒害影响 |
| |
| 引用本文： | 郝怀庆,施国新,等.镉污染对水鳖的毒害影响[J].西北植物学报,2001,21(6):1237-1240,T001. |
| |
| 作者姓名： | 郝怀庆 施国新 |
| |
| 作者单位： | 南京师范大学生命科学学院 |
| |
| 基金项目： | 国家自然科学基金 ( 39770 0 4 6 )，江苏省自然科学基金 ( BK71 0 7)共同资助 |
| |
| 摘 要： | 研究分析了不同浓度Cd^2 对水鳖叶片叶绿素含量、SOD、CAT、POD活性以及超微结构的影响。结果表明，叶绿素含量、SOD、CAT、POD添生均随Cd^2 浓度的增加而先升后降。电镜观察发现，Cd^2 处理下，细胞核变形，核仁解体，染色质凝集；类囊体片层膨胀，叶绿体双层膜破裂，线粒体中嵴突减少或消失，线粒体空泡化。
|
| 关 键 词： | 水鳖 Cd^2＋ SOD CAT POD 超微结构 镉污染 毒害 水生植物 |
| 文章编号： | 1000-4025-(2001)06-1237-04 |
Toxic effect of cadmium on Hydrocharis dubia |
| |
| HAO Huai qing,SHI Guo xin,DU Kai he,XU Qin song.Toxic effect of cadmium on Hydrocharis dubia[J].Acta Botanica Boreali-Occidentalia Sinica,2001,21(6):1237-1240,T001. |
| |
| Authors: | HAO Huai qing SHI Guo xin DU Kai he XU Qin song |
| |
| Abstract: | This paper deals with the effect of Cd 2+ on the chlorophyll content,the activity of SOD,CAT,POD and ultrastructure in leaves of Hydrocharis dubia .The results showed that with increasing of the treatment concentration,the chlorophyll contnet,SOD,CAT and POD activity first increased and then decreased.Ultrastructure observation revealed that the nuclei became deformed,nucleolus disintegrated and chromatin condensed,the thylakoids of chloroplast swelled,the chloroplast membrane disrupted,cristae of mitochondria disappeared and mitochondria vesiculated. |
| |
| Keywords: | Hydrocharis dubia Cd 2+ SOD CAT POD ultrastructure |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《西北植物学报》浏览原始摘要信息 |
| 点击此处可从《西北植物学报》下载免费的PDF全文 |
