Indications of Selenium Protection against Cadmium and Lead Toxicity in Oilseed Rape ( Brassica napus L.)

The present study investigated the beneficial role of selenium (Se) in protecting oilseed rape ( L.) plants from cadmium (Cd ) and lead (Pb ) toxicity. Exogenous Se markedly reduced Cd and Pb concentration in both roots and shoots. Supplementation of the medium with Se (5, 10, and 15 mg kg ) allevia...

Full description

Saved in:
Bibliographic Details
Published in:Frontiers in plant science 2016-12, Vol.7, p.1875-1875
Main Authors: Wu, Zhilin, Yin, Xuebin, Bañuelos, Gary S, Lin, Zhi-Qing, Liu, Ying, Li, Miao, Yuan, Linxi
Format: Article
Language:English
Subjects:
Antioxidant defense system
Cadmium
Lead
Oilseed rape (Brassica napus L.)
Oxidative Stress
Plant Science
Selenium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The present study investigated the beneficial role of selenium (Se) in protecting oilseed rape ( L.) plants from cadmium (Cd ) and lead (Pb ) toxicity. Exogenous Se markedly reduced Cd and Pb concentration in both roots and shoots. Supplementation of the medium with Se (5, 10, and 15 mg kg ) alleviated the negative effect of Cd and Pb on growth and led to a decrease in oxidative damages caused by Cd and Pb. Furthermore, Se-enhanced superoxide free radicals ([Formula: see text]), hydrogen peroxide (H O ), and lipid peroxidation, as indicated by malondialdehyde accumulation, but decreased superoxide dismutase and glutathione peroxidase activities. Meanwhile, the presence of Cd and Pb in the medium affected Se speciation in shoots. The results suggest that Se could alleviate Cd and Pb toxicity by preventing oxidative stress in oilseed rape plant.
ISSN:1664-462X
1664-462X
DOI:10.3389/fpls.2016.01875