NDLI: Antioxidant and prooxidant effects of lanthanum ions on Vicia faba L. seedlings under cadmium stress, suggesting ecological risk

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Reduced adsorption of propanil to black carbon: effect of dissolved organic matter loading mode and molecule size.

Persistent organic pollutants in coastal sediment off South China in relation to the importance of anthropogenic inputs.

Antioxidant and prooxidant effects of lanthanum ions on Vicia faba L. seedlings under cadmium stress, suggesting ecological risk

Comparison of earthworm and chemical assays of the bioavailability of aged 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene, 1,1,1-trichloro-2,2-bis(p-chlorophenyl)ethane, and heavy metals in orchard soils

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Biomagnification of mercury through the benthic food webs of a temperate estuary: Masan Bay, Korea.

Application of U.S. EPA guidelines in a bioavailability-based assessment of ambient water quality criteria for zinc in freshwater

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Unrecognized causative factors for the lack of in vitro metabolism reported by McKinney et al.

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Antioxidant and prooxidant effects of lanthanum ions on Vicia faba L. seedlings under cadmium stress, suggesting ecological risk

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Wang, Cheng-Run Xiao, Jia-Jun Tian, Yuan Bao, Xia Liu, Ling Yu, Yan Wang, Xiao-Rong Chen, Tian-Yu
Description	Author Affiliation: Wang CR ( School of Life Science, Huainan Normal University, Huainan, P.R. China. chengrunw66@yahoo.com.cn)
Abstract	The present study combined chemical analyses and biological measurements to investigate biphasic effects of La on Cd stress in leaves of Vicia faba seedlings, which were hydroponically cultivated for 15 d in the combination of 6 µM $CdCl_{2}$ and 2 to 480 µM $La(NO_{3})_{3},$ respectively. The results showed that contents of Cd first elevated above and then declined below the 6 µM single Cd treatment when 2 to 30 µM extraneous La were combined. Contents of mineral nutrients altered differentially and became imbalanced. No distinct band was observed in catalase (CAT), guaiacol peroxidase (GPX), or ascorbate peroxidase (APX) patterns, but in superoxide dismutase (SOD) isozymes by the supplementation with 8 to 480 µM of extraneous La. Superoxide dismutase and APX activities changed as a U-shaped curve; however, CAT and GPX changed as an inverted U-shaped curve along with increasing La. Moreover, heat shock protein 70 (HSP 70) production was reduced below the single treatment of Cd at 2 to 8 µM of extraneous La and enhanced thereafter. Thus, La at lower concentrations promoted antioxidation against Cd stress; La at higher concentrations turned to prooxidant effects, implicating potential ecological risk. Heat shock protein 70, combined with the antioxidant enzymes, constitutes an integrative defense system, which can be used to estimate the degree of antioxidation or prooxidation of extraneous La to Cd-induced oxidative stress in the seedlings. Environ. Toxicol. Chem. 2012;31:1355–1362. © 2012 SETAC
File Format	HTM / HTML
ISSN	07307268
Issue Number	6
Volume Number	31
e-ISSN	15528618
Journal	Environmental Toxicology and Chemistry
Language	English
Publisher	Wiley
Publisher Date	2012-06-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cadmium Soil Pollutants Research Support, Non-u.s. Gov't Reactive Oxygen Species Seedling Oxidative Stress Toxicity Discipline Environmental Health Plant Leaves Discipline Toxicology Ecology Metabolism Drug Effects Ascorbate Peroxidases Journal Article Catalase Oxidation-reduction Vicia Faba Discipline Chemistry Peroxidase Physiology Lanthanum Hsp70 Heat-shock Proteins Superoxide Dismutase
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis

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