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Updated: Jun 5, 2026

Two-Dimensional Visualization and Quantification of Labile, Inorganic Plant Nutrients and Contaminants in Soil
Published on: September 1, 2020
Pb and Zn accumulation in a Cd-hyperaccumulator (Viola baoshanensis)
Chuan Wu1, Bin Liao, Sheng-Long Wang
1School of Life Sciences and State Key Laboratory of Biocontrol, Sun Yat-sen (Zhongshan) University, Guangzhou, PR, China.
Viola baoshanensis, a known cadmium hyperaccumulator, also strongly accumulates lead and zinc. This study confirms its potential for phytoremediation of multiple heavy metals.
Area of Science:
- Environmental Science
- Plant Biology
- Biogeochemistry
Background:
- Viola baoshanensis is recognized as a cadmium (Cd) hyperaccumulator.
- Its capacity for accumulating lead (Pb) and zinc (Zn) remains uncertain.
Purpose of the Study:
- To investigate the potential of V. baoshanensis to accumulate Pb and Zn.
- To further elucidate its Cd hyperaccumulating characteristics.
Main Methods:
- Field surveys were conducted.
- Hydroponic experiments were performed.
- Pot experiments were utilized.
Main Results:
- Field conditions showed V. baoshanensis accumulating high levels of Cd (1090 mg kg⁻¹), Pb (1902 mg kg⁻¹), and Zn (3428 mg kg⁻¹) in shoots.
- Hydroponic and pot experiments demonstrated high tolerance and accumulation of Cd, Pb, and Zn in shoots (>2% Cd, >1% Pb, >0.5% Zn on a dry matter basis).
Conclusions:
- V. baoshanensis is confirmed as a strong accumulator of Cd, Pb, and Zn.
- This species shows significant potential for phytoremediation of multiple heavy metals.
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