Stabilized Nanoscale Zerovalent Iron Mediated Cadmium Accumulation and Oxidative Damage of Boehmeria nivea (L.) Gaudich Cultivated in Cadmium Contaminated Sediments

• DOI: 10.1021/acs.est.7b03164
• Publication Date: 2017-08-29T20:18:21Z
• Authors: Xiaomin Gong; Danlian Huang; Yunguo Liu; Guangming Zeng; Rongzhong Wang; Jia Wan; Chen Zhang; Min Cheng; Xiang Qin; Wenjing Xue
• Keywords: Ramie; Zerovalent iron

Nanoparticles can be absorbed by plants, but their impacts on phytoremediation are not yet well understood. This study was carried out to determine the of starch stabilized nanoscale zerovalent iron (S-nZVI) cadmium (Cd) accumulation and oxidative stress in Boehmeria nivea (L.) Gaudich (ramie). Plants were cultivated Cd-contaminated sediments amended with S-nZVI at 100, 500, 1000 mg/kg, respectively. Results showed that promoted Cd ramie seedlings. The subcellular distribution result content cell wall plants reduced, its concentration organelle soluble fractions increased treatments, indicating promotion entering plant cells S-nZVI. In addition, 100 mg/kg alleviated damage under Cd-stress, while 500 inhibited growth aggravated plants. These findings demonstrate nanoparticles low improve efficiency phytoremediation. herein develops a promising novel technique combined use nanotechnology remediation heavy metal contaminated sites.