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Magnetic (Fe3O4) Nanoparticles Reduce Heavy Metals Uptake and Mitigate Their Toxicity in Wheat Seedling
Konate, A; He, X; Zhang, ZY; Ma, YH; Zhang, P; Alugongo, GM; Rui, YK; He X(何潇); Zhang ZY(张智勇); Ma YH(马宇辉); Zhang P(张鹏)
2017
Source PublicationSUSTAINABILITY
ISSN2071-1050
Volume9Issue:5Pages:790
SubtypeArticle
AbstractHeavy metal pollution is not only a hazard to living organisms but also an important worldwide environmental concern. Experiments were performed to investigate the physiological mechanisms of magnetic (Fe3O4) nanoparticles (nano-Fe3O4) mitigation of the toxicity of heavy metals (Pb, Zn, Cd and Cu) in wheat seedlings. All the Petri dishes with germinating seedlings (1d) were covered, sealed with parafilm, and placed in a dark growth chamber. All parameters (seedling growth inhibition, heavy metal accumulation, enzymatic activities, and reducing effects of nano-Fe3O4 on heavy metal toxicity) were analyzed only after five days. The results showed that the tested heavy metals significantly affected the growth of wheat seedling by decreasing root length, shoot length and even death at 10 mM concentration in the case of Cd and Cu. Heavy metals exposure also showed that superoxide dismutase (SOD) and peroxidases (POD) activities decreased significantly when the malondialdehyde (MDA) content was significantly higher in wheat seedlings. Addition of magnetic (Fe3O4) nanoparticles (2000 mg/L) in each heavy metal solution (1 mM) significantly decreased the growth inhibition and activated protective mechanisms to reduce oxidative stress induced by heavy metals in the wheat seedlings. The reducing effects of nano-Fe3O4 against heavy metals stress could be dependent on the increase in the enzyme activity (SOD and POD). Their protective role was confirmed by the decrease in MDA content. The alleviating effect of nano-Fe3O4 is associated with their adsorption capacity of heavy metals.
Keywordalleviation heavy metals magnetic (Fe3O4) nanoparticles inhibition oxidative stress wheat
DOI10.3390/su9050790
WOS KeywordANTIOXIDANT ENZYME-ACTIVITIES ; CUCUMBER CUCUMIS-SATIVUS ; LIPID-PEROXIDATION ; CERIA NANOPARTICLES ; CADMIUM STRESS ; TRITICUM-AESTIVUM ; OXIDATIVE DAMAGE ; SALICYLIC-ACID ; ROOT-GROWTH ; ACCUMULATION
Indexed BySCI ; SCOPUS
Language英语
WOS Research AreaScience & Technology - Other Topics ; Environmental Sciences & Ecology
WOS SubjectGREEN & SUSTAINABLE SCIENCE & TECHNOLOGY ; Environmental Sciences ; Environmental Studies
WOS IDWOS:000404127800115
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihep.ac.cn/handle/311005/285226
Collection多学科研究中心
Affiliation中国科学院高能物理研究所
First Author AffilicationInstitute of High Energy
Recommended Citation
GB/T 7714
Konate, A,He, X,Zhang, ZY,et al. Magnetic (Fe3O4) Nanoparticles Reduce Heavy Metals Uptake and Mitigate Their Toxicity in Wheat Seedling[J]. SUSTAINABILITY,2017,9(5):790.
APA Konate, A.,He, X.,Zhang, ZY.,Ma, YH.,Zhang, P.,...&张鹏.(2017).Magnetic (Fe3O4) Nanoparticles Reduce Heavy Metals Uptake and Mitigate Their Toxicity in Wheat Seedling.SUSTAINABILITY,9(5),790.
MLA Konate, A,et al."Magnetic (Fe3O4) Nanoparticles Reduce Heavy Metals Uptake and Mitigate Their Toxicity in Wheat Seedling".SUSTAINABILITY 9.5(2017):790.
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