Department of Agricultural Chemistry, National Taiwan University, Taipei 10617, Taiwan.
Ecotoxicol Environ Saf. 2012 Oct;84:173-8. doi: 10.1016/j.ecoenv.2012.07.004. Epub 2012 Jul 24.
French marigold (Tagetes patula) and impatiens (Impatiens walleriana) can act as hyperaccumulator plants for removal of cadmium (Cd) from contaminated sites. In this study, an exponential decay model was used to predict the maximum removal of Cd from artificially spiked soils by impatiens. Application of a chelator, EDTA, was also assessed for effects on the bioconcentration (BCF) and translocation (TF) factors of the two species with four replicates. Exposure to Cd significantly decreased the biomass of two plant species. Impatiens and French marigold accumulated Cd at a rate of 200-1200 mg Cd kg(-1) in shoots, with BCFs and TFs of 8.5-15 and 1.7-2.6, respectively.
万寿菊（Tagetes patula）和凤仙花（Impatiens walleriana）可以作为超富集植物，从污染场地中去除镉（Cd）。在这项研究中，使用指数衰减模型来预测凤仙花从人工添加镉的土壤中去除 Cd 的最大量。还评估了螯合剂 EDTA 的应用对两种物种的生物浓缩（BCF）和转运（TF）因子的影响，每个处理重复四次。Cd 的暴露显著降低了两种植物物种的生物量。凤仙花和万寿菊在地上部分以 200-1200 mg Cd kg(-1)的速率积累 Cd，BCF 和 TF 分别为 8.5-15 和 1.7-2.6。
