Long-term field metal extraction by Pelargonium: phytoextraction efficiency in relation to plant maturity

International Journal of Phytoremediation
Muhammad ShahidC Dumat

Abstract

The long length of periods required for effective soil remediation via phytoextraction constitutes a weak point that reduces its industrial use. However, these calculated periods are mainly based on short-term and/or hydroponic controlled experiments. Moreover, only a few studies concern more than one metal, although soils are scarcely polluted by only one element. In this scientific context, the phytoextraction of metals and metalloids (Pb, Cd, Zn, Cu, and As) by Pelargonium was measured after a long-term field experiment. Both bulk and rhizosphere soils were analyzed in order to determine the mechanisms involved in soil-root transfer. First, a strong increase in lead phytoextraction was observed with plant maturity, significantly reducing the length of the period required for remediation. Rhizosphere Pb, Zn, Cu, Cd, and As accumulation was observed (compared to bulk soil), indicating metal mobilization by the plant, perhaps in relation to root activity. Moreover, metal phytoextraction and translocation were found to be a function of the metals' nature. These results, taken altogether, suggest that Pelargonium could be used as a multi-metal hyperaccumulator under multi-metal soil contamination conditions, and they also provide...Continue Reading

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Citations

Mar 22, 2014·Journal of Environmental Sciences (China)·Muhammad ShahidCamille Dumat
Jun 29, 2016·Environmental Science and Pollution Research International·Xiaoming WanTongbin Chen
Jan 19, 2019·International Journal of Phytoremediation·Janhvi PandeySaudan Singh
Jan 22, 2019·International Journal of Phytoremediation·Iram GulMuhammad Arshad
Apr 16, 2015·Environmental Science and Pollution Research International·Xiaoqing HaoYong Pu
May 5, 2018·International Journal of Environmental Research and Public Health·Sana KhalidNabeel Khan Niazi
Aug 28, 2021·Microorganisms·Badriyah Shadid AlotaibiSaba Shamim

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