Evaluation of some chelating agents on phytoremediation efficiency of Amaranthus caudatus L. and Tagetes patula L. in soils contaminated with lead

Roles and significance of chelating agents for potentially toxic elements (PTEs) phytoremediation in soil: A review

“…Several chelating agents have been explored to examine their potential to enhance PTEs phytoremediation in soil (Aghelan et al, 2021;Kaushik, 2015;Mousavi et al, 2021). Chelating agents can be divided into two groups: natural and synthetic.…”

“…Table 6 lists chelating agents used in phytoremediation for different metal types and plants. Based on previous studies, the application of chelating agents in phytoremediation technology has proven to improve the phytoremediation potential for diverse types of metals and plants in terms of PTEs accumulation (Huang et al, 2019;Rena et al, 2022;Tahmasbian and Safari Sinegani, 2016), plant growth (Aghelan et al, 2021;Ghazaryan et al, 2021) and microbial community in soil (Gul et al, 2021)..…”

“…It has conclusively been shown that adding chelating agents for phytoremediation of PTEs could increase the toxic metal uptake and translocation from the root to the aboveground biomass (Jiang et al, 2019;Ng et al, 2019;Saifullah et al, 2015). The increase of PTEs uptake by the plants might have resulted from the capability of chelators to enhance the bioavailability of metal and subsequently increase the metal contents in the soil (Aghelan et al, 2021;Hseu et al, 2013). Table 7 shows that the application of various chelating agents in PTEs phytoremediation has increased the PTEs concentration in the roots and stems of various plants.…”

“…Recently, there has been an increasing interest in using chelating agents in phytoremediation as they can enhance the bioavailability of metals in the soil and improve metal recovery by plants. Many previous studies have reported that chelate-assisted phytoremediation could boost the metals removal efficiency, high phytotoxicity tolerance and increase translocation and accumulation of metals in the aboveground parts of the plants (Aghelan et al, 2021;Hu et al, 2019;Jiang et al, 2019;Shahid et al, 2014;Tahmasbian and Safari Sinegani, 2016). Thus, this paper discusses the roles of the chelating agents in phytoremediation and summarises the impacts of chelating agents on PTEs uptake and plant growth and biomass.…”

Effect of salinity on the potential cadmium phytoremediation from the polluted soil by carpobrotus rossii

“…It should be mentioned that its application is possible and publicly accepted [ 12 ]. Clean up the soils that polluted by toxic metals using phytoremediation can be achieved via several mechanisms include phytofiltration/rhizofiltration [ 13 ], phytoextraction [ 14 ], phytovolatilization [ 15 ], and phytodegradation [ 16 ]. The scientific evidence shown that increasing in the salinity of soil can exacerbate cadmium's mobility and availability, especially in dry areas [ 17 ].…”