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A newly discovered Cd-hyperaccumulator Lantana camara L
Shiliang Liu1, Shafaqat Ali2, Rongjie Yang1
1College of Landscape Architecture, Sichuan Agricultural University, Wenjiang, Chengdu, Sichuan, 611130, China.
Journal of Hazardous Materials
|March 11, 2019
Summary
Lantana camara L. shows high tolerance to cadmium (Cd) contamination. This study confirms it as a potential Cd hyperaccumulator plant for restoring polluted soils.
Area of Science:
- Environmental Science
- Plant Biology
- Bioremediation
Background:
- Identifying hyperaccumulators is crucial for phytoextraction of contaminated soils.
- Few cadmium (Cd) hyperaccumulators are known, necessitating further research.
- Lantana camara L. showed potential hyperaccumulator traits in prior field studies.
Purpose of the Study:
- To confirm if Lantana camara L. is a cadmium (Cd) hyperaccumulator.
- To evaluate Cd tolerance and accumulation in Lantana camara L.
- To assess the potential of Lantana camara L. for Cd-polluted soil remediation.
Main Methods:
- Laboratory dose-gradient experiments were conducted.
- Field sample analysis was performed.
- Cadmium (Cd) concentrations, bioaccumulation factors (BFs), and translocation factors (TFs) were measured.
Main Results:
- Lantana camara L. showed no visible damage or biomass reduction below 100 mg kg-1 Cd.
- Plants exhibited high Cd tolerance, effective photosynthesis, and reactive oxygen species scavenging.
- Bioaccumulation factors (BFs) and translocation factors (TFs) exceeded 1.0, with shoot Cd concentrations > 100 mg kg-1.
Conclusions:
- Lantana camara L. demonstrates typical characteristics of a Cd hyperaccumulator.
- This species is a promising candidate for phytoremediation of Cd-polluted soils.
- Further research into Lantana camara L. for soil restoration is warranted.
Keywords:
Cd hyperaccumulatorCd toleranceHyperaccumulating characteristicsLantana camara L.PhytoremediationMore Related Videos
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