ZHOU Xiao-hui,YUAN Hong-yan,WU Yang-qing,et al.Effects of Heavy Metals Stress on Physiological Responses of Sedum aizoon L.[J].Northern Horticulture,2013,37(21):39-41.
重金属离子胁迫对费菜生理生化指标的影响
- Title:
- Effects of Heavy Metals Stress on Physiological Responses of Sedum aizoon L.
- 文章编号:
- 1001-0009(2013)21-0039-03
- Keywords:
- Sedium aizoon L.; heavy metal ions; Cu2+; Pb2+; Zn2+; physiological response
- 分类号:
- S 567.23+7
- 文献标志码:
- B
- 摘要:
- 以景天科植物费菜为试材，采用人工水培技术，测定了Cu2+、Pb2+和Zn2＋在费菜体内的转运和富集水平，以期为污染环境的植物修复提供理论依据。结果表明：费菜对水体中的重金属有较强的富集能力，当Cu2+的处理浓度大于240 μmol/L时，铜的富集量达到了铜超富集植物水平；同样，当Pb2+浓度>960 μmol/L时，地上部Pb2+含量出现饱和，约为730 mg/kg，但地下部分Pb2+富集量一直处于增加，达到9 600～16 000 mg/kg，当Zn2+浓度>1 500 mg/kg时，地上部分Zn2+含量出现饱和，但地下部分Zn2+富集量一直处于增加状态。
- Abstract:
- Taking Sedium aizoon of Crassulaceae cultured by artificial hydroponic technology as materials，the level of Cu2+，Pb2+ and Zn2+transportation and accumulation in aizoon were determined，in order to provide new plant material for repairing polluted environment.The results showed that aizoon had a stronger ability of accumulating heavy metals in polluted waters.When Cu2+ concentration was more than 240 μmol/L，the enrichment ability of copper had reached to the level of hyper accumulation-plant did.Similarly，when Pb2+ concentration was more than 960 μmol/L，the aboveground part saturated，and the concentration was about 730 mg/kg.However，the Pb2+ concentration of underground part was increasing on the way，and the concentration was 9 600～16 000 mg/kg.When Zn2+ was more than 1 500 mg/kg,the aboveground part saturated,but underground part was in a state of increasing.
参考文献/References:
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备注/Memo
第一作者简介：周晓慧（1988-），女，硕士研究生，研究方向为园林植物栽培与生理。E-mail:，zxhsjzgc@163.com.