Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8871027 | Marine Pollution Bulletin | 2018 | 6 Pages |
Abstract
Sesuvium portulacastrum was treated with mixture of copper, zinc, and cadmium for 60â¯days, with the concentration of each metal ranging from 0 to 20â¯mg/L. The tolerance of plants and bioaccumulation of heavy metals were then investigated. The height of S. portulacastrum decreased significantly with increasing heavy metal concentrations from 1 to 20â¯mg/L. The biomass was adversely impacted when the concentration exceeded 5â¯mg/L. There were no significant differences in malondialdehyde (MDA) concentration among different treatment groups, while the soluble protein content and superoxide dismutase (SOD) activity decreased with increasing heavy metal concentration. However, the BCF values of the three metals were all higher than 10 and the tolerance in root was up to 1000â¯mg/kg without causing significant growth inhibition, suggesting that S. portulacastrum should be a potential candidate for phytostabilization for the phytoremediation of polymetallic contaminations in coastal environments.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Oceanography
Authors
Jianxiang Feng, Yanyan Lin, Yao Yang, Qianqian Shen, Jianrong Huang, Shugong Wang, Xiaoshan Zhu, Zufu Li,