当前位置：
X-MOL 学术
›
J. Hazard. Mater.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Aqueous extracts from the selected hyperaccumulators used as soil additives significantly improve accumulation capacity of Solanum nigrum L. for Cd and Pb.
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-03-19 , DOI: 10.1016/j.jhazmat.2020.122553 Ran Han 1 , Huiping Dai 2 , Irena Twardowska 3 , Jie Zhan 4 , Shuhe Wei 5
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-03-19 , DOI: 10.1016/j.jhazmat.2020.122553 Ran Han 1 , Huiping Dai 2 , Irena Twardowska 3 , Jie Zhan 4 , Shuhe Wei 5
Affiliation
|
The effects of soil treatment with aqueous extracts from three hyperaccumulators on Cd and Pb accumulation by Solanum nigrum L. were determined. The stem (S-RG) and leaf extracts (L-RG) of Rorippaglobosa (Turcz.) Thell., and stem extract (S-BP) of Bidens pilosa L. significantly enhanced Cd and Pb total accumulation capacity of S. nigrum compared to control (by 44 %, 47 %, and 29 % for Cd and by 28 %, 28 % and 21 % for Pb, respectively), while EDTA caused its 9 % and 15 % decrease due to the plant biomass reduction (by 33 %). The leaching experiments reflected affinity of additives to metal mobilization in soils. The concentrations of total organic acid in S-RG, L-RG and S-BP were the highest among studied extracts, which besides the beneficial effect on the soil environment (microbe number and enzyme activities), may be partial reasons of strong promotion of S. nigrum accumulation capacity for Cd and Pb. It was shown that hyperaccumulation properties of a plant are not a prerequisite of enhancing effect of the plant-based soil additive on the metal accumulation capacity of the target living hyperaccumultor. The plant-based chelators were found to be promising candidates for EDTA and other chemicals replacement in promoting efficient and environmentally safe phytoremediation.
中文翻译：
从选定的超级蓄积物中提取的水提取物用作土壤添加剂，可显着提高龙葵（Solanum nigrum L.）对Cd和Pb的蓄积能力。
测定了三种超级蓄积剂的水提取物对土壤的处理对龙葵（Solanum nigrum L.）吸收Cd和Pb的影响。相比之下，Rorippaglobosa（Turcz。）的茎（S-RG）和叶提取物（L-RG）以及Bidens pilosa L.的茎提取物（S-BP）显着增强了黑链霉菌的Cd和Pb总积累能力。来控制（Cd分别减少44％，47％和29％，Pb分别减少28％，28％和21％），而EDTA则由于植物生物量减少而减少了9％和15％（减少了33％）。 ％）。浸出实验反映出添加剂对土壤中金属迁移的亲和力。在研究的提取物中，S-RG，L-RG和S-BP中的总有机酸浓度最高，除了对土壤环境的有益影响（微生物数量和酶活性）外，这可能是强烈提高黑麦草对Cd和Pb积累能力的部分原因。结果表明，植物的超积累特性并不是增强植物基土壤添加剂对目标活菌的金属积累能力的增强作用的先决条件。人们发现，以植物为基础的螯合剂有望成为促进EDTA和其他化学物质替代的有效候选者，以促进高效和环境安全的植物修复。
更新日期：2020-03-20
中文翻译：
从选定的超级蓄积物中提取的水提取物用作土壤添加剂，可显着提高龙葵（Solanum nigrum L.）对Cd和Pb的蓄积能力。
测定了三种超级蓄积剂的水提取物对土壤的处理对龙葵（Solanum nigrum L.）吸收Cd和Pb的影响。相比之下，Rorippaglobosa（Turcz。）的茎（S-RG）和叶提取物（L-RG）以及Bidens pilosa L.的茎提取物（S-BP）显着增强了黑链霉菌的Cd和Pb总积累能力。来控制（Cd分别减少44％，47％和29％，Pb分别减少28％，28％和21％），而EDTA则由于植物生物量减少而减少了9％和15％（减少了33％）。 ％）。浸出实验反映出添加剂对土壤中金属迁移的亲和力。在研究的提取物中，S-RG，L-RG和S-BP中的总有机酸浓度最高，除了对土壤环境的有益影响（微生物数量和酶活性）外，这可能是强烈提高黑麦草对Cd和Pb积累能力的部分原因。结果表明，植物的超积累特性并不是增强植物基土壤添加剂对目标活菌的金属积累能力的增强作用的先决条件。人们发现，以植物为基础的螯合剂有望成为促进EDTA和其他化学物质替代的有效候选者，以促进高效和环境安全的植物修复。
京公网安备 11010802027423号