Influence of zero-valent iron and rice husk on As and Cd uptake in rice

Guo X.D., Wang F., Hu H.L., Xu L.W., Jiang Q.L., Ding J., Xu B., Li Y.Y., Chen Y.H., Wang G. (2021): Influence of zero-valent iron and rice husk on As and Cd uptake in rice. Plant Soil Environ., 67: 324–330.


download PDF

Zero-valent iron (ZVI) and rice husk (RH) have potential as adsorbents for heavy metals; however, their effects on iron plaque formation and heavy metal uptake by plants are still unclear. In this study, the impacts of ZVI, RH and their combinations on iron plaque formation on the root surface and the uptake of As and Cd by rice plants were investigated. A pot experiment was performed under waterlogged conditions using As(III)- or Cd(II)-spiked soil. The results showed that ZVI (0.05% or 0.2%) with or without RH significantly increased iron plaque formation and Fe contents in rice plants and pore water. Under As treatment, ZVI (0.05% or 0.2%) without or with RH obviously increased the As content in plaques and reduced the As content in grains by 67% and 66% and 19% and 24%, respectively. The Cd content was markedly increased in iron plaques and reduced in roots, shoots and grains by ZVI and RH. ZVI (0.05% or 0.2%), RH and their combinations reduced the grain Cd content by 61, 62, 60, 68 and 69%. These findings suggest that ZVI is effective in hindering As and Cd uptake by rice with or without RH in paddies contaminated with As or Cd.


Cao J.L., Ren S.X., Wang C.L., She J.Y., Jiang Y.J., Liu Y.Y., Zhou Y.T., Wang L., Wang J., Wang Y.X., Liu J., Chen Y.H. (2021): Cadmium and lead distribution in pyrite ores: environmental concerns over geochemically mobile fractions. Elementa: Science of the Anthropocene, 9: 00093.
Chen Z., Tang Y.T., Yao A.J., Cao J., Wu Z.H., Peng Z.R., Wang S.Z., Xiao S., Baker A.J.M., Qiu R.L. (2017): Mitigation of Cd accumulation in paddy rice (Oryza sativa L.) by Fe fertilization. Environmental Pollution, 231: 549–559.
Hu L.Q., Zeng M., Lei M., Liao B.H., Zhou H. (2020): Effect of zero-valent iron on arsenic uptake by rice (Oryza sativa L.) and its relationship with iron, arsenic, and phosphorus in soil and iron plaque. Water, Air, and Soil Pollution, 231: 481.
Kang Z.M., Wang S.L., Qin J.H., Wu R.Y., Li H.S. (2020): Pollution characteristics and ecological risk assessment of heavy metals in paddy fields of Fujian province, China. Scientific Reports, 10: 12244.
Khan M.A., Khan S., Ding X.D., Khan A., Alam M. (2017): The effects of biochar and rice husk on adsorption and desorption of cadmium on to soils with different water conditions (upland and saturated). Chemosphere, 193: 1120–1126.
Lee C.H., Hsieh Y.C., Lin T.H., Lee D.Y. (2013): Iron plaque formation and its effect on arsenic uptake by different genotypes of paddy rice. Plant and Soil, 363: 231–241.
Liu G., Gao J.H., Ai H., Chen X.Y. (2013): Applications and potential toxicity of magnetic iron oxide nanoparticles. Small, 9: 1533–1545.
Liu H.J., Zhang J.L., Christie P., Zhang F.S. (2008): Influence of iron plaque on uptake and accumulation of Cd by rice (Oryza sativa L.) seedlings grown in soil. Science of the Total Environment, 394: 361–368.
Liu Y.Z., Wu T., White J.C., Lin D.H. (2020): A new strategy using nanoscale zero-valent iron to simultaneously promote remediation and safe crop production in contaminated soil. Nature Nanotechnology, 16: 197–205.
Mlangeni A.T., Perez M., Raab A., Krupp E.M., Norton G.J., Feldmann J. (2020): Simultaneous stimulation of arsenic methylation and inhibition of cadmium bioaccumulation in rice grain using zero valent iron and alternate wetting and drying water management. Science of The Total Environment, 711: 134696.
Mueller B. (2017): Arsenic in groundwater in the southern lowlands of Nepal and its mitigation options: a review. Environmental Reviews, 25: 296–305.
Qiao J.T., Liu T.X., Wang X.Q., Li F.B., Lv Y.H., Cui J.H., Zeng X.D., Yuan Y.Z., Liu C.P. (2018): Simultaneous alleviation of cadmium and arsenic accumulation in rice by applying zero-valent iron and biochar to contaminated paddy soils. Chemosphere, 195: 260–271.
Seyfferth A.L., Morris A.H., Gill R., Kearns K.A., Mann J.N., Paukett M., Leskanic C. (2016): Soil incorporation of silica-rich rice husk decreases inorganic arsenic in rice grain. Journal of Agricultural and Food Chemistry, 64: 3760–3766.
Von Moos N., Slaveykova V.I. (2014): Oxidative stress induced by inorganic nanoparticles in bacteria and aquatic microalgae – state of the art and knowledge gaps. Nanotoxicology, 8: 605–630.
Xu B., Yu J.Y., Guo Y.Y., Sun X.C., Ding J., Chen Y.H., Wang G. (2020): Influence of organic fertilizers and brassinosteroids on accumulation and uptake of As and Cd by rice seedlings (Oryza sativa L.) grown in soil. Communications in Soil Science and Plant Analysis, 51: 2429–2440.
Xue W.J., Huang D.L., Zeng G.M., Wan J., Cheng M., Zhang C., Hu C.J., Li J. (2018): Performance and toxicity assessment of nanoscale zero valent iron particles in the remediation of contaminated soil: a review. Chemosphere, 210: 1145–1156.
Zhao F.J., Wang P. (2020): Arsenic and cadmium accumulation in rice and mitigation strategies. Plant and Soil, 446: 1–21.
download PDF

© 2022 Czech Academy of Agricultural Sciences | Prohlášení o přístupnosti