Smith M J, Flowers T H, Duncan H J, Alder J
Glasgow Marine Technology Centre, Department of Mechanical Engineering, University of Glasgow, James Watt Building, Glasgow G12 8QQ, UK.
Environ Pollut. 2006 Jun;141(3):519-25. doi: 10.1016/j.envpol.2005.08.061. Epub 2005 Oct 24.
The relevance of germination trials for screening plants that may have potential for use in the phytoremediation of PAH contaminated land was evaluated. The germination and subsequent growth of 7 grass and legume species were evaluated in soil spiked with a pure PAH mixture or coal tar and soil from a former coking plant heavily contaminated with aged PAHs. None of these treatments adversely affected germination of the plants. However, apart from Lolium perenne all species exhibited reduced growth in the coking plant soil after 12 weeks growth when compared to the untreated soil. In the coal tar spiked soil 4 out of the 7 species showed reduced growth, as did 3 out of the 7 in the soil spiked with a mixture of 7 PAHs. Therefore, germination studies alone would not predict the success of subsequent growth of the species tested in the ranges of soil PAH levels studied.
评估了发芽试验对于筛选可能具有用于多环芳烃污染土地植物修复潜力的植物的相关性。在添加了纯多环芳烃混合物或煤焦油的土壤以及来自一个被老化多环芳烃严重污染的 former 炼焦厂的土壤中，评估了 7 种草和豆科植物的发芽及后续生长情况。这些处理均未对植物的发芽产生不利影响。然而，除了多年生黑麦草外，与未处理的土壤相比，所有物种在生长 12 周后在炼焦厂土壤中的生长均受到抑制。在添加煤焦油的土壤中，7 个物种中有 4 个生长受到抑制，在添加 7 种多环芳烃混合物的土壤中，7 个物种中有 3 个生长受到抑制。因此，仅发芽研究无法预测在所研究的土壤多环芳烃水平范围内测试的物种后续生长的成功与否。
