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A dual role of Se on Cd toxicity: evidences from the uptake of Cd and some essential elements and the growth responses in paddy rice.
Biol Trace Elem Res. 2013 Jan; 151(1):113-21.BT

Abstract

This study was carried out to investigate the effects of selenium (Se) on the uptake and translocation of cadmium (Cd) and essential elements in paddy rice (Oryza sativa L., Shuangyou 998). Selenium could alleviate/aggravate Cd toxicity in paddy rice, which depended on the dosages of Se and/or Cd. When Cd treatment level was as low as 35.6 μM, ≤12.7 μM Se could inhibit the uptake of Cd in paddy rice and increase the biomass of paddy rice; however, with Cd levels reaching 89-178 μM, the addition of Se resulted in increases in Cd uptake and exacerbated the growth of paddy rice. Cd always inhibited the uptake of Se. Cd alone suppressed the uptake of Ca, Mg, Mn, Cu, and Zn; however, Se reversed the decreases in the concentrations of the said elements, suggesting an element regulation mechanism to relieve Cd toxicity. Without Cd in the solution, low doses of Se increased the biomasses of shoots and roots at the expense of the more or less decreases in the concentrations of Ca, Mg, K, Fe, Mn, Cu, and shoot Zn, indicating an antagonistic effect of Se on these cations. The presence of Cd could also reverse these decreases especially at the highest treatment levels for both Se and Cd, also suggesting an element regulation mechanism responsible for the detoxification of high dosages of Se. Consequently, when Se is used to alleviate Cd toxicity, attention must be paid to the Cd pollution extent and doses of Se supplement.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Feng R
Centre for Research in Ecotoxicology and Environmental Remediation, Institute of Agro-Environmental Protection, The Ministry of Agriculture, Tianjin, China. frwzym@hotmail.com
Wei C
No affiliation info available
Tu S
No affiliation info available
Ding Y
No affiliation info available
Song Z
No affiliation info available

MeSH

BiomassCadmiumCalciumCopperDose-Response Relationship, DrugDrug AntagonismIon TransportMagnesiumManganeseOryzaPlant RootsPlant ShootsSeedlingsSeleniumTime FactorsZinc

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23152001

Citation

Feng, Renwei, et al. "A Dual Role of Se On Cd Toxicity: Evidences From the Uptake of Cd and some Essential Elements and the Growth Responses in Paddy Rice." Biological Trace Element Research, vol. 151, no. 1, 2013, pp. 113-21.
Feng R, Wei C, Tu S, et al. A dual role of Se on Cd toxicity: evidences from the uptake of Cd and some essential elements and the growth responses in paddy rice. Biol Trace Elem Res. 2013;151(1):113-21.
Feng, R., Wei, C., Tu, S., Ding, Y., & Song, Z. (2013). A dual role of Se on Cd toxicity: evidences from the uptake of Cd and some essential elements and the growth responses in paddy rice. Biological Trace Element Research, 151(1), 113-21. https://doi.org/10.1007/s12011-012-9532-4
Feng R, et al. A Dual Role of Se On Cd Toxicity: Evidences From the Uptake of Cd and some Essential Elements and the Growth Responses in Paddy Rice. Biol Trace Elem Res. 2013;151(1):113-21. PubMed PMID: 23152001.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A dual role of Se on Cd toxicity: evidences from the uptake of Cd and some essential elements and the growth responses in paddy rice. AU - Feng,Renwei, AU - Wei,Chaoyang, AU - Tu,Shuxin, AU - Ding,Yongzhen, AU - Song,Zhengguo, Y1 - 2012/11/15/ PY - 2012/08/20/received PY - 2012/10/16/accepted PY - 2012/11/16/entrez PY - 2012/11/16/pubmed PY - 2014/10/11/medline SP - 113 EP - 21 JF - Biological trace element research JO - Biol Trace Elem Res VL - 151 IS - 1 N2 - This study was carried out to investigate the effects of selenium (Se) on the uptake and translocation of cadmium (Cd) and essential elements in paddy rice (Oryza sativa L., Shuangyou 998). Selenium could alleviate/aggravate Cd toxicity in paddy rice, which depended on the dosages of Se and/or Cd. When Cd treatment level was as low as 35.6 μM, ≤12.7 μM Se could inhibit the uptake of Cd in paddy rice and increase the biomass of paddy rice; however, with Cd levels reaching 89-178 μM, the addition of Se resulted in increases in Cd uptake and exacerbated the growth of paddy rice. Cd always inhibited the uptake of Se. Cd alone suppressed the uptake of Ca, Mg, Mn, Cu, and Zn; however, Se reversed the decreases in the concentrations of the said elements, suggesting an element regulation mechanism to relieve Cd toxicity. Without Cd in the solution, low doses of Se increased the biomasses of shoots and roots at the expense of the more or less decreases in the concentrations of Ca, Mg, K, Fe, Mn, Cu, and shoot Zn, indicating an antagonistic effect of Se on these cations. The presence of Cd could also reverse these decreases especially at the highest treatment levels for both Se and Cd, also suggesting an element regulation mechanism responsible for the detoxification of high dosages of Se. Consequently, when Se is used to alleviate Cd toxicity, attention must be paid to the Cd pollution extent and doses of Se supplement. SN - 1559-0720 UR - https://www.unboundmedicine.com/medline/citation/23152001/A_dual_role_of_Se_on_Cd_toxicity:_evidences_from_the_uptake_of_Cd_and_some_essential_elements_and_the_growth_responses_in_paddy_rice_ L2 - https://dx.doi.org/10.1007/s12011-012-9532-4 DB - PRIME DP - Unbound Medicine ER -