Impact of Titanium Dioxide Nanoparticles on Cd Phytotoxicity and Bioaccumulation in Rice (Oryza sativa L.)
Bibliographic Data
| ID | 15470541 |
|---|---|
| Authors | Wei Zhang (0000-0002-5458-9581, Hebei University of Economics and Business), Jinghua Long (Hebei University of Economics and Business, corresponding author), Geng Jian-min (Hebei University of Economics and Business), Jianmin Geng (Hebei University of Economics and Business), Jie Li (0000-0002-5131-4769, Shenyang Agricultural University), Wei Zhong-yi (Shenyang Agricultural University), Zhongyi Wei (Shenyang Agricultural University) |
| Year | 2020 |
| Volume | 17 |
| Issue | 9 |
| Pages | 2979-2979 |
| Publication date | 2020-04-25 |
| Peer Reviewed | Yes |
| Open Access | Yes |
| Type | ARTICLE |
| Venue | International Journal of Environmental Research and Public Health (JOURNAL) |
| Journal identifiers | ISSN: 1661-7827 • E-ISSN: 1660-4601 |
| Publisher | Multidisciplinary Digital Publishing Institute (PUBLISHER • CH) |
| DOI | 10.3390/ijerph17092979 |
| PMID | 32344831 |
| OpenAlex | W3020182444 |
| Language | EN |
| Citations received | 1 |
| References cited | 32 |
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 (TiO 2 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 TiO 2 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. TiO 2 NPs could lower the phytotoxicity of Cd in terms of the changes in the morphological and biochemical characteristics, especially in the tillering and booting stage. In the tillering stage, TiO 2 NPs addition caused a significant increase in plant height, biomass and the total chlorophyll content in the leaves of Oryza saliva L. In the booting stage, TiO 2 NPs addition caused a 15% to 32% and 24% to 48% reduction of malondialdehyde (MDA) content for the C2 and C3 group, respectively, compared to that of the respective control treatment (T0). TiO 2 -NPs addition reduced the activity of peroxidase (POD) in the leaves in the booting and heading stage, and the activity of catalase (CAT) in the tillering stage. In the C1 and C2 group, the grain Cd content in the 100 and 500 mg kg -1 TiO 2 NPs treatments reached 0.47-0.84 mg kg -1 , obviously higher than that of the treatment without TiO 2 NPs (0.27-0.32 mg kg -1 ), suggesting that TiO 2 -NPs could promote Cd migration in the soil-rice system
Agronomy · Bioaccumulation · Biology · Metallurgy · Oryza sativa · Phytotoxicity · Titanium dioxide · Chemistry · Geochemistry and Elemental Analysis · Heavy metals in environment · Materials Science · Nanoparticles: synthesis and applications · Biochemistry · Environmental Chemistry · Horticulture
| Unique citing works | 1 |
|---|---|
| Citations per year | 0,17 |
| Citation span | 2020 - 2020 (1) |
| Citation velocity | historical |
| Highly cited | No |
| Citation types | Neutral: 1 |