| Abstract | 第1-11页 |
| CHAPTER 1 Introduction | 第11-23页 |
| ·Cadmium | 第11-15页 |
| ·Cadmium in the environment | 第11-12页 |
| ·Soil factors that control Cd bioavailability | 第12页 |
| ·Toxic effects of cadmium in plants | 第12-15页 |
| ·Copper | 第15-16页 |
| ·Zinc | 第16-18页 |
| ·Zinc in plants | 第17-18页 |
| ·Toxic effects of Zn on human and other animals | 第18页 |
| ·Phytoremediation | 第18-23页 |
| ·Remediation Technologies | 第18-20页 |
| ·Phytoremediation | 第20-23页 |
| CHAPTER 2 Cadmium tolerance and accumulation characteristics of vetiveria zizanioides | 第23-39页 |
| ·Introduction | 第23-24页 |
| ·Materials and methods | 第24-27页 |
| ·Plant materials and cadmium treatments | 第24页 |
| ·Determination of Cd in plants | 第24-25页 |
| ·Water content and transfer factor | 第25页 |
| ·Determination of lipid peroxidation and soluble protein | 第25页 |
| ·Determination of chlorophyll content and root activity | 第25-26页 |
| ·Determination of antioxidative enyzme | 第26页 |
| ·Cadmium uptake kinetics | 第26页 |
| ·Statistical analysis | 第26-27页 |
| ·Results | 第27-33页 |
| ·Effect on dry biomass production and Cd accumulation | 第27-28页 |
| ·Effects of Cd on water content and Transfer factor in plant | 第28-29页 |
| ·Effects of Cd on lipid peroxidation in roots | 第29页 |
| ·Effects of Cd on protein contents in vetiver | 第29-30页 |
| ·Effects of Cd on chlorophyll contents in leaves | 第30-31页 |
| ·Effects of Cd on root activity | 第31页 |
| ·Effects of Cd on antioxidant enzyme activities in vetiver | 第31-32页 |
| ·Cadmium uptake kinetics in vetiver | 第32-33页 |
| ·Discussion | 第33-38页 |
| ·Plant dry biomass and cadmium tissue concentration | 第33-35页 |
| ·Chlorophyll content and soluble protein | 第35页 |
| ·Root activity and Water content | 第35-36页 |
| ·MDA and antioxidantive stress | 第36-37页 |
| ·Cadmium uptake kinetics | 第37-38页 |
| ·Conclusion | 第38-39页 |
| CHAPTER 3 Effects of Zn and Cu on physiological and biochemical processes and their accumulation characteristics of vetiver | 第39-51页 |
| ·Introduction | 第39-40页 |
| ·Materials and methods | 第40-41页 |
| ·Plant materials and heavy metal treatments | 第40页 |
| ·Determination of heavy metal contents in plants | 第40页 |
| ·Determination of lipid peroxidation and soluble protein | 第40-41页 |
| ·Determination of chlorophyll content and root activity | 第41页 |
| ·Statistical analysis | 第41页 |
| ·Results | 第41-47页 |
| ·Effects on biomass, water content and heavy metal accumulation | 第41-43页 |
| ·Effects on chlorophyll contents in leaves | 第43-44页 |
| ·Effect on MDA content in roots | 第44-45页 |
| ·Effect on root activity | 第45-46页 |
| ·Effects on protein contents in vetiver | 第46-47页 |
| ·Discussion | 第47-50页 |
| ·Plant growth and dry biomass | 第47-48页 |
| ·Metal accumulation and water contents | 第48页 |
| ·Effects of Zn and Cu on chlorophyll content in leaves | 第48-49页 |
| ·Effects of heavy metals on root activity | 第49页 |
| ·Effects of heavy metals on MDA and protein contents in plant | 第49-50页 |
| ·Conclusion | 第50-51页 |
| CHEPTER 4 Zn and Cu effects on Cd uptake in vetiver | 第51-54页 |
| ·Introduction | 第51页 |
| ·Materials and methods | 第51页 |
| ·Heavy metal treatments | 第51页 |
| ·Determination of Cd in plants | 第51页 |
| ·Results | 第51-53页 |
| ·Discussion | 第53-54页 |
| CHAPTER 5 Conclusion and future directions | 第54-56页 |
| REFERRENCE | 第56-70页 |
| APPENDICES A | 第70-71页 |
| APPENDICES B | 第71-72页 |
| 中文摘要 | 第71-72页 |
| ACKNOWLEDGEMENTS | 第72页 |
