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| Research Progress in Phytotoxicity of Carbon Nanoparticles and Its Mechanisms |
| Received:June 06, 2015 |
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| KeyWord:nanotoxicity;phytotoxicity;graphene;carbon nanotubes;fullerene;reactive oxygen species(ROS) |
| Author Name | Affiliation | E-mail | | LI Xiao-kang | Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China | | | HU Xian-gang | Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China | huxiangang@nankai.edu.cn | | ZHOU Qi-xing | Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China | |
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| Abstract: |
| Carbon nanomaterials have been widely used in various fields because of their many excellent properties. As a result, they inevitably enter the environment and become a new type of contamination. Carbon nanoparticles may pose toxicity to plants. Understanding the phytotoxicity of carbon nanoparticles is an important prerequisite for promoting nanomaterial application and avoiding the relevant ecological risks. Here we reviewed the research progress in the adsorption and absorption of carbon nanoparticles in plants. Carbon nanomaterials could adsorb on plant root surface or enter into plant roots through apoplastic and symplastic pathways. After entering plant roots, nanomaterials can undergo long-distance translocation through xylem/phloem. The phytotoxicity is dependent on the types of nanomaterials and plants. The toxic effects of nanomaterials on plant development, tissue structures and functions were highlighted. And also, the factors influencing nanomaterial phytotoxicity, for instance, nanomaterial characteristics and external environmental factors, were discussed. The molecular mechanisms of carbon nanoparticle toxicity were analyzed as well. The oxidative stress was considered as the main pathway of plant damages caused by carbon nanoparticles. Finally some important issues for future studies on the phytotoxicity of nanoparticles were proposed. |
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