Indications of selenium protection against cadmium and lead toxicity in oilseed rape (brassica napus L.)

Zhilin Wu; Xuebin Yin; Gary S. Bañuelos; Zhi Qing Lin; Ying Liu; Miao Li; Linxi Yuan

doi:10.3389/fpls.2016.01875

Indications of selenium protection against cadmium and lead toxicity in oilseed rape (brassica napus L.)

Zhilin Wu, Xuebin Yin, Gary S. Bañuelos, Zhi Qing Lin, Ying Liu, Miao Li^*, Linxi Yuan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

98 Citations (Scopus)

Abstract

The present study investigated the beneficial role of selenium (Se) in protecting oilseed rape (Brassica napus L.) plants from cadmium (Cd⁺²) and lead (Pb⁺²) 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⁻¹) 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 (O₂^•¯), hydrogen peroxide (H₂O₂), 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.

Original language	English
Article number	1875
Journal	Frontiers in Plant Science
Volume	7
Issue number	DECEMBER2016
DOIs	https://doi.org/10.3389/fpls.2016.01875
Publication status	Published - 15 Dec 2016
Externally published	Yes

Keywords

Antioxidant defense system
Cadmium
Lead
Oilseed rape (brassica napus L.)
Oxidative stress
Selenium

Access to Document

10.3389/fpls.2016.01875

Cite this

@article{fcf95f04936f489b9fa09e4a862939a7,

title = "Indications of selenium protection against cadmium and lead toxicity in oilseed rape (brassica napus L.)",

abstract = "The present study investigated the beneficial role of selenium (Se) in protecting oilseed rape (Brassica napus L.) plants from cadmium (Cd+2) and lead (Pb+2) 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−1) 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 (O2•¯), hydrogen peroxide (H2O2), 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.",

keywords = "Antioxidant defense system, Cadmium, Lead, Oilseed rape (brassica napus L.), Oxidative stress, Selenium",

author = "Zhilin Wu and Xuebin Yin and Ba{\~n}uelos, {Gary S.} and Lin, {Zhi Qing} and Ying Liu and Miao Li and Linxi Yuan",

note = "Publisher Copyright: {\textcopyright} 2016 Wu, Yin, Ba{\~n}uelos, Lin, Liu, Li and Yuan.",

year = "2016",

month = dec,

day = "15",

doi = "10.3389/fpls.2016.01875",

language = "English",

volume = "7",

journal = "Frontiers in Plant Science",

issn = "1664-462X",

number = "DECEMBER2016",

}

TY - JOUR

T1 - Indications of selenium protection against cadmium and lead toxicity in oilseed rape (brassica napus L.)

AU - Wu, Zhilin

AU - Yin, Xuebin

AU - Bañuelos, Gary S.

AU - Lin, Zhi Qing

AU - Liu, Ying

AU - Li, Miao

AU - Yuan, Linxi

PY - 2016/12/15

Y1 - 2016/12/15

N2 - The present study investigated the beneficial role of selenium (Se) in protecting oilseed rape (Brassica napus L.) plants from cadmium (Cd+2) and lead (Pb+2) 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−1) 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 (O2•¯), hydrogen peroxide (H2O2), 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.

AB - The present study investigated the beneficial role of selenium (Se) in protecting oilseed rape (Brassica napus L.) plants from cadmium (Cd+2) and lead (Pb+2) 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−1) 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 (O2•¯), hydrogen peroxide (H2O2), 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.

KW - Antioxidant defense system

KW - Cadmium

KW - Lead

KW - Oilseed rape (brassica napus L.)

KW - Oxidative stress

KW - Selenium

UR - http://www.scopus.com/inward/record.url?scp=85007407240&partnerID=8YFLogxK

U2 - 10.3389/fpls.2016.01875

DO - 10.3389/fpls.2016.01875

M3 - Article

AN - SCOPUS:85007407240

SN - 1664-462X

VL - 7

JO - Frontiers in Plant Science

JF - Frontiers in Plant Science

IS - DECEMBER2016

M1 - 1875

ER -

Indications of selenium protection against cadmium and lead toxicity in oilseed rape (brassica napus L.)

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this