NDLI: Plant uptake and phytotoxicity of decabromodiphenyl ether (BDE-209) in ryegrass (Lolium perenne L).

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Xie, Xianchuan Qian, Yan Xue, Yingang He, Huan Wei, Dongyang
Spatial Coverage	China
Description	Author Affiliation: Xie X ( State Key Laboratory of Pollution Control and Resource Reuse, Center for Hydrosciences Research, School of the Environment, Nanjing University, Nanjing, P. R. China. xchxie@nju.edu.cn.)
Abstract	The plant uptake and phytotoxicity of decabromodiphenyl ether (BDE-209) in ryegrass (Lolium perenne L) seedlings were investigated. Results showed that ryegrass could take up BDE-209 from the contaminated soils and most of the BDE-209 in plants is located in roots, indicating that BDE-209 has low root-to-shoot translocation. Except for about 35% inhibition of root growth and about 30% decrease of the chlorophyll b and carotenoid contents of leaves, no visual toxicity symptoms were observed in seedlings grown even at a high concentration of 100 mg kg(-1). BDE-209 exposure significantly induced the generation of the superoxide radical (O2Ë(-)) and malondialdehyde (MDA) in ryegrass leaves. With the increase of BDE-209 concentration, the activities of antioxidant enzymes including superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), and glutathione-S-transferase (GST) were significantly changed, and the ratio of reduced glutathione to oxidized glutathione (GSH/GSSG) was also significantly reduced. Results suggested that BDE-209 exposure could cause oxidative stress and damage, which may play an important role in the phytotoxicity of BDE-209 in ryegrass seedlings.
File Format	HTM / HTML
ISSN	20507887
Issue Number	10
Volume Number	15
e-ISSN	20507895
Journal	Environmental Science: Processes & Impacts
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2013-10-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Environmental Health Halogenated Diphenyl Ethers Toxicity Lolium Drug Effects Growth & Development Soil Pollutants Antioxidants Metabolism Biomass China Lipid Peroxidation Malondialdehyde Plant Leaves Plant Roots Seedling Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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