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Nano-Fe3O4-modified biochar promotes the formation of iron plaque and cadmium immobilization in rice root.
Chemosphere. 2021 Aug; 276:130212.C

Abstract

Rice as a paddy field crops, iron-containing materials application could induce its iron plaque formation, thereby affecting cadmium (Cd) transportation in the rhizosphere and its uptake in root. In this study, a hydroponic experiment was conducted to investigate the effects of three exogenous iron materials, namely nano-Fe3O4-modified biochar (BC-Fe), chelated iron (EDTA-Fe), and ferrous sulfate (FeSO4), on the iron plaque formation on the surface of rice root, and to investigate the effects of formed iron plaque on the absorption, migration, and transportation of Cd and Fe in rice plant. The results showed that yellow-brown and brown iron plaque was formed on surface cells of the Fe-treated rice root, and some black particles were embedded in the iron plaque formed by BC-Fe. The proportion of crystallized iron plaque (31.8%-35.9%) formed by BC-Fe was much higher than that formed by EDTA-Fe and FeSO4. The Cd concentrations in the crystallized iron plaque formed by BC-Fe were 7.64-13.0 mg·kg-1, and increased with the increasing of Fe concentrations in the plaque. The Cd translocation factor from root to stem (TFr-s) and the Cd translocation factor from stem to leaf (TFs-l) with BC-Fe treatment decreased by 84.7% and 80.0%, respectively. The results demonstrated that application BC-Fe promoted the formation of iron plaque and enhanced the sequestration of Cd and Fe in roots, thus reduced the transportation and accumulation of Cd in aerial rice tissues.

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Authors+Show Affiliations

Zhang JY
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: zjydeyx@sina.com.
Zhou H
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: zhouhang4607@163.com.
Zeng P
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: zengzengpp@foxmail.com.
Wang SL
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: 372018537@qq.com.
Yang WJ
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: yang646309109@163.com.
Huang F
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: 2910425487@qq.com.
Huo Y
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: 2198845348@qq.com.
Yu SN
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: 1062659458@qq.com.
Gu JF
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: gujiaofeng@csuft.edu.cn.
Liao BH
College of Environmental Science and Engineering, Central South University of Forestry and Technology, Changsha, 410004, China; Hunan Engineering Laboratory for Control of Rice Quality and Safety, Central South University of Forestry and Technology, Changsha, 410004, China. Electronic address: liaobohan@163.com.

MeSH

CadmiumCharcoalIronOryzaPlant RootsSoilSoil Pollutants

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33740654

Citation

Zhang, Jing-Yi, et al. "Nano-Fe3O4-modified Biochar Promotes the Formation of Iron Plaque and Cadmium Immobilization in Rice Root." Chemosphere, vol. 276, 2021, p. 130212.
Zhang JY, Zhou H, Zeng P, et al. Nano-Fe3O4-modified biochar promotes the formation of iron plaque and cadmium immobilization in rice root. Chemosphere. 2021;276:130212.
Zhang, J. Y., Zhou, H., Zeng, P., Wang, S. L., Yang, W. J., Huang, F., Huo, Y., Yu, S. N., Gu, J. F., & Liao, B. H. (2021). Nano-Fe3O4-modified biochar promotes the formation of iron plaque and cadmium immobilization in rice root. Chemosphere, 276, 130212. https://doi.org/10.1016/j.chemosphere.2021.130212
Zhang JY, et al. Nano-Fe3O4-modified Biochar Promotes the Formation of Iron Plaque and Cadmium Immobilization in Rice Root. Chemosphere. 2021;276:130212. PubMed PMID: 33740654.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Nano-Fe3O4-modified biochar promotes the formation of iron plaque and cadmium immobilization in rice root. AU - Zhang,Jing-Yi, AU - Zhou,Hang, AU - Zeng,Peng, AU - Wang,Shi-Long, AU - Yang,Wen-Jun, AU - Huang,Fang, AU - Huo,Yang, AU - Yu,Shu-Ning, AU - Gu,Jiao-Feng, AU - Liao,Bo-Han, Y1 - 2021/03/09/ PY - 2021/01/31/received PY - 2021/02/21/revised PY - 2021/03/04/accepted PY - 2021/3/20/pubmed PY - 2021/6/4/medline PY - 2021/3/19/entrez KW - Cadmium KW - Iron plaque KW - Iron-based biochar KW - Nano materials KW - Rice SP - 130212 EP - 130212 JF - Chemosphere JO - Chemosphere VL - 276 N2 - Rice as a paddy field crops, iron-containing materials application could induce its iron plaque formation, thereby affecting cadmium (Cd) transportation in the rhizosphere and its uptake in root. In this study, a hydroponic experiment was conducted to investigate the effects of three exogenous iron materials, namely nano-Fe3O4-modified biochar (BC-Fe), chelated iron (EDTA-Fe), and ferrous sulfate (FeSO4), on the iron plaque formation on the surface of rice root, and to investigate the effects of formed iron plaque on the absorption, migration, and transportation of Cd and Fe in rice plant. The results showed that yellow-brown and brown iron plaque was formed on surface cells of the Fe-treated rice root, and some black particles were embedded in the iron plaque formed by BC-Fe. The proportion of crystallized iron plaque (31.8%-35.9%) formed by BC-Fe was much higher than that formed by EDTA-Fe and FeSO4. The Cd concentrations in the crystallized iron plaque formed by BC-Fe were 7.64-13.0 mg·kg-1, and increased with the increasing of Fe concentrations in the plaque. The Cd translocation factor from root to stem (TFr-s) and the Cd translocation factor from stem to leaf (TFs-l) with BC-Fe treatment decreased by 84.7% and 80.0%, respectively. The results demonstrated that application BC-Fe promoted the formation of iron plaque and enhanced the sequestration of Cd and Fe in roots, thus reduced the transportation and accumulation of Cd in aerial rice tissues. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/33740654/Nano_Fe3O4_modified_biochar_promotes_the_formation_of_iron_plaque_and_cadmium_immobilization_in_rice_root_ DB - PRIME DP - Unbound Medicine ER -