| 双穗雀稗种群对铅、锌和铜的积累和耐性研究 |
| |
| 引用本文： | 束文圣,张志权,黄立南. 双穗雀稗种群对铅、锌和铜的积累和耐性研究[J]. 中山大学学报(自然科学版), 2000, 39(3): 82-86 |
| |
| 作者姓名： | 束文圣 张志权 黄立南 |
| |
| 作者单位： | 中山大学生命科学学院!广东广州510275 |
| |
| 基金项目： | 国家自然科学基金资助项目!(39870 145，39770 154)，广东省自然科学基金资助项目!(990 2 59)，广东省博士启动基金资助项目!(984 13 |
| |
| 摘 要： | 以正常草地的双穗雀稗（Ｐａｓｐａｌｕｍ ｄｉｓｔｉｃｈｕｍ）种群作对照，研究了生长于广东韶关凡口和乐昌铅锌尾矿的２个双穗雀稗种群的重金属耐性，凡口和乐昌铅锌尾矿都含有极高浓度的总量和有效态的重金属（Ｐｂ，Ｚｎ和Ｇｕ），与之相应，采自两个铅锌尾矿的植物体内的铅、锌和铜的含量显著高于对照点，根伸长的耐性实验表明，凡口和乐昌站尾矿的２个双穗雀稗种群对Ｐｂ，Ｚｎ和Ｃｕ的耐笥指数和ＥＤ５０值均显著高于对照种
|
| 关 键 词： | 重金属 积累 耐性 双穗雀稗 种群 铅 锌 铜 |
Pb,Zn and Cu Tolerance and Accumulation in Populations of Paspalum distichum |
| |
| SHU Wen sheng ,ZHANG Zhi quan ,HUANG Li nan ,LAN Chong yu ,YE Zhi hong. Pb,Zn and Cu Tolerance and Accumulation in Populations of Paspalum distichum[J]. Acta Scientiarum Naturalium Universitatis Sunyatseni, 2000, 39(3): 82-86 |
| |
| Authors: | SHU Wen sheng ZHANG Zhi quan HUANG Li nan LAN Chong yu YE Zhi hong |
| |
| Affiliation: | SHU Wen sheng 1,ZHANG Zhi quan 1,HUANG Li nan 2,LAN Chong yu 1,YE Zhi hong 3 |
| |
| Abstract: | An investigation was conducted into the multi element tolerance of the grass Paspalum distichum growing on Fankou (FK) and Lechang (LC) Pb/Zn mine tailings at Shaoguan, Guangdong Province. Population of the grass growing on uncontaminated pasture was used as a control. Two tailings sites contained higher levels of Pb, Zn and Cu, as a consequence, the heavy metal contents (Pb, Zn and Cu) in the plant tissues collected from FK and LC tailings sites were significantly higher than those of plant samples collected from the uncontaminated pasture. Root elongation test indicated that populations of FK and LC had significantly higher index of tolerance and ED 50 to the three metals than the control population, indicating that the populations of FK and LC have evolved to Pb, Zn and Cu tolerant ecotypes. |
| |
| Keywords: | heavy metal accumulation tolerance Paspalum distichum |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
