Impact of Titanium Dioxide Nanoparticles on Cd Phytotoxicity and Bioaccumulation in Rice (Oryza sativa L.).

ABSTRACT: The impact of engineered nanoparticles (ENPs) on the migration and toxicity of coexisting pollutants is still unclear, especially in soil media. This study aims to evaluate the impact of titanium dioxide nanoparticles (TiO2 NPs) on the phytotoxicity of cadmium (Cd) to Oryza sativa L., and the migration of cadmium (Cd) in the soil-rice system. Three different Cd stress groups (C1 group: 1.0 mg kg-1, C2 group: 2.5 mg kg-1 and C3 group: 5.0 mg kg-1) were set in the pot experiment, and the target concentration of TiO2 NPs in each group were 0 mg kg-1 (T0), 50 mg kg-1 (T1), 100 mg kg-1 (T2) and 500 mg kg-1 (T3). Plant height and biomass decreased with the increasing of Cd content in paddy soil. TiO2 NPs could lower the phytotoxicity of Cd in terms of the changes in the morphological and biochem

SUBMITTER: Zhang W 

PROVIDER: S-EPMC7246507 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature