Simultaneous hyperaccumulation of rare earth elements, manganese and aluminum in Phytolacca americana in response to soil properties

The plant Phytolacca americana L. simultaneously hyperaccumulates manganese (Mn) and rare earth elements (REEs), but the underlying mechanisms are largely unknown. In this study, P. americana and the corresponding rhizosphere soil samples were collected from an ion-adsorption REE mine area in China,...

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Bibliographic Details
Published in:Chemosphere (Oxford) 2021-11, Vol.282, p.131096-131096, Article 131096
Main Authors: Liu, Chong, Liu, Wen-Shen, van der Ent, Antony, Morel, Jean Louis, Zheng, Hong-Xiang, Wang, Guo-Bao, Tang, Ye-Tao, Qiu, Rong-Liang
Format: Article
Language:English
Subjects:
Environmental Sciences
Hyperaccumulator
Phosphorus
Phytoremediation
Rhizosphere
Root exudates
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Summary:The plant Phytolacca americana L. simultaneously hyperaccumulates manganese (Mn) and rare earth elements (REEs), but the underlying mechanisms are largely unknown. In this study, P. americana and the corresponding rhizosphere soil samples were collected from an ion-adsorption REE mine area in China, and the elemental composition and soil properties were analyzed in order to explore the relationship between metal accumulation and soil properties. The results show that P. americana accumulates high concentrations of REEs (up to 1040 mg kg−1), Mn (up to 10400 mg kg−1) and aluminum (Al) (up to 5960 mg kg−1) in leaves. The REE concentrations in leaves were positively correlated with those of Al, Fe and Zn, while light REE concentrations were negatively correlated with P concentrations (p 
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2021.131096