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海州香薷和紫花香薷对Cu、Zn的吸收和积累

Keywords: 植物修复,Cu,Zn,吸收和积累,海州香薷,紫花香薷

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Abstract:

采用水培试验方法,研究了Cu、Zn处理对海州香薷和紫花香薷(两种分别在铜矿和铅锌矿上良好生长的优势植物)生长及Cu、Zn吸收和积累的影响。结果表明,50μmol·L-1的Cu有利于海州香薷根系的生长,但却明显抑制紫花香薷地上部分的干物质产量,而Zn处理浓度直到200μmol·L-1也未对两种香薷的干物质量产生影响。低Cu(对照)时Zn的增加并未影响海州香薷地上部分Cu的含量和积累量,但高Cu(50和200μmol·L-1)时,Zn浓度的增加减少了海州香薷地上部分Cu的含量和积累量;而紫花香薷地上部分Cu含量和积累量无论是高Cu还是低Cu时都随Zn的增加而减少。同样,海州香薷和紫花香薷地上部分的Zn含量和积累量在低Zn时并未受Cu浓度的抑制,但在高Zn时,Cu的增加却减少了Zn含量的增加。而且海州香薷在高Cu(200μmol·L-1)和高Zn(200μmol·L-1)时对Cu和Zn的积累量明显高于紫花香薷,在Cu和Zn的修复上表现出优势。

References

[1]  Baker A J M. Terrestrial higher plants which hyperaccumulate metallic elements[J]. Biorecovery, 1989, 1:81- 97.
[2]  Yang X, Shi W Y, Fu C X,et al. Copper- hyperaccumulators of Chinese plants characterstics and possible use for phyto- remediation[C]. In: Bassam N. E. eds. Sustainable agriculture for food, energy and industry. James & James, Science Publishers Ltd. London. 1998.484- 489.
[3]  柯文山,等.大冶铜绿山矿区海州香薷( Elsholtzia haichowensis)植物地球化学特征分析 [J]. 生态学报, 2001, 21(6):907- 912.
[4]  Tang S R, Wilke B M and Huang C Y. The uptake of copper by plants dominantly growing on copper mining spoils along the Yangtze River, the People\'s Republic of China[J]. Plant and Soil, 1999, 209:225- 232.
[5]  Luo Y M and Rimmer D L. Zinc- Copper interaction affecting plant growth on a metal- contaminated soil[J]. Environment Pollution, 1995, 88: 79- 83.
[6]  Shamma S S, Schat H and Voous R. Contamination toxicology of copper, zinc and cadmium in binary mixture: concentration dependent antago nistic, nonaditive, and synergistic effects on root growth in Silene Vul garis[J]. Environ Toxicol Chem, 1999,18(2): 348- 355.
[7]  Stephen D E and Leon V K.Toxicity of zinc and copper to brassia species: Implication for Phytoremediation[J]. J Environ Qual,1997, 26:776- 781.
[8]  Baker A J M. Accumulators and excluders- strategies in the response of plants to heavy metals[J]. Journal of Plant Nutrition, 1981, 3:643- 654.
[9]  MacNair M R. Heavy metal tolerance in plant: a model evolutionary system[J]. Treads in Ecology and Evoluation, 1987, 2:354- 378.

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