Effects of IDSA, EDDS and EDTA on heavy metals accumulation in hydroponically grown maize (Zea mays, L.)

Journal of Hazardous Materials
Zhongqiu ZhaoYizong Huang

Abstract

Heavy metals contamination of soil is a widespread global problem. Chelant assisted phytoextraction has been proposed to improve the efficiency of phytoextraction which involves three subsequent levels: transfer of metals from the bulk soil to the root surfaces, uptake into the roots and translocation to the shoots. However, most studies focused on the first level. A hydroponic experiment, which addresses the latter two levels, was conducted to study the effects of EDTA, EDDS and IDSA on the uptake and the distribution of Pb, Zn, Cu and Cd in the apoplast and the symplast of roots of maize (Zea mays, L.). The concentrations of the metals (with exception of Zn) in the shoots were increased significantly by addition of all the chelants. EDTA was most effective for Pb uptake and IDSA was interestingly most effective for Cd uptake. Pb in the roots with EDTA was mostly distributed in the apoplast, while Zn, especially with IDSA, was mostly located in the symplast. The results indicated that, the capacity of chelant to enhance the nonselective apoplastic transport of metal may be most important for chelant enhanced phytoextraction.

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Citations

Jun 12, 2013·Environmental Science & Technology·Anthea C Johnson, Naresh Singhal
Aug 29, 2014·Environmental Science and Pollution Research International·Ume HabibaBasharat Ali
Apr 12, 2016·Environmental Geochemistry and Health·Muhammad RizwanFakhir Hannan
Oct 31, 2014·Environmental Science and Pollution Research International·Shulan ZhaoLian Duo
May 25, 2016·Journal of Environmental Management·Giovanni VigliottaStefano Castiglione
Jul 15, 2016·Ecotoxicology and Environmental Safety·Hanzhi ZhangChunyan Shao
Jul 12, 2019·International Journal of Phytoremediation·Youzheng NingTingqiang Li
Sep 17, 2019·International Journal of Phytoremediation·Xinying ZhangJingxi Yuan
Mar 29, 2020·International Journal of Environmental Research and Public Health·Uchenna OkereaforVuyo Mavumengwana
Feb 9, 2020·Environmental Science and Pollution Research International·Agnieszka KonkolewskaArleta Małecka
Jun 16, 2019·Environmental Monitoring and Assessment·Chuck Chuan NgFengxiang Han
Feb 25, 2021·Analytical Methods : Advancing Methods and Applications·Yuyan ZhaoXiaodan Tang
Dec 5, 2017·The Science of the Total Environment·Yan-Ping ZhaoXiang-Dong Li
May 2, 2021·Environmental Science and Pollution Research International·Saeed RehmanNengwu Zhu
May 22, 2021·Journal of Hazardous Materials·Yue YouShaoting Du

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