Exposure to Nitro-PAHs interfere with germination and early growth of Hordeum vulgare via oxidative stress.
Ecotoxicol Environ Saf
; 180: 756-761, 2019 Sep 30.
Article
em En
| MEDLINE
| ID: mdl-31154200
ABSTRACT
Nitrated polycyclic aromatic hydrocarbons (Nitro-PAHs) as important organic pollutants are ubiquitous in the atmospheric environment, agricultural soils and aquatic environments to pose a severe polluting risk. However, little is known about the mechanism of Nitro-PAHs genotoxicity in plants. We analyzed seeds germination, seedlings growth, and toxicity mechanism following 1-Nitropyrene treatment in Hordeum vulgare. Our results reveal that 1-NP treatment could be an inhibited agent on seeds germination and growth of roots and shoots. Additionally, the reduction of mitotic index and the increasing frequency of micronucleus suggest that 1-NP may pose a potential risk of genotoxicity in the plant. We further clarify that O2- and H2O2 radicals contribute to 1-NP stimulation induced oxidative damage. Our study provides insights into the role of Nitro-PAHs exposure on growth processing toxicity and genotoxicity in plant and provided a useful reference for the surveillance and risk management of Nitro-PAHs in environments.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Hidrocarbonetos Policíclicos Aromáticos
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Poluentes do Solo
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Hordeum
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Estresse Oxidativo
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Mutagênicos
Idioma:
En
Revista:
Ecotoxicol Environ Saf
Ano de publicação:
2019
Tipo de documento:
Article