Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of China.
Environ Sci Pollut Res Int. 2015 Jul;22(13):9668-75. doi: 10.1007/s11356-015-4094-6. Epub 2015 Jan 29.
Dithiocarbamate chitosan (DTC-CTS) was used as a new amendment for remediation of cadmium (Cd)-contaminated soils to reduce the Cd bioavailability. Arabidopsis thaliana was chosen as a model plant to evaluate its efficiency. It was found that DTC-CTS could effectively improve the growth of A. thaliana. The amount of Cd up-taken by A. thaliana could be decreased by as much as 50% compared with that grown in untreated Cd-contaminated soil samples. The chlorophyll content and the aerial biomass of Arabidopsis also increased substantially and eventually returned to a level comparable to plants grown in non-contaminated soils, with the addition of DTC-CTS. These findings suggested that DTC-CTS amendment could be effective in immobilizing Cd and mitigating its accumulation in plants grown in Cd-contaminated soils, with potential application as an in situ remediation of Cd-polluted soils.
二硫代氨基甲酸盐壳聚糖（DTC-CTS）被用作一种新的改良剂，用于修复镉污染土壤，以降低镉的生物可利用性。拟南芥被选为模式植物来评估其效率。结果发现，DTC-CTS 能有效促进拟南芥的生长。与在未处理的镉污染土壤样本中生长的植物相比，通过 DTC-CTS 处理的植物对镉的吸收量减少了多达 50%。此外，拟南芥的叶绿素含量和地上生物量也显著增加，最终恢复到与在非污染土壤中生长的植物相当的水平。这些发现表明，DTC-CTS 改良剂可以有效地固定镉，减轻其在镉污染土壤中生长的植物中的积累，具有作为原位修复镉污染土壤的应用潜力。
