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Bioavailability of coated and uncoated ZnO nanoparticles to cucumber in soil with or without organic matter.
Ecotoxicol Environ Saf. 2017 Oct; 144:543-551.EE

Abstract

There is a gap of knowledge for the fate, effects and bioavailability of coated and uncoated ZnO nanoparticles (NPs) in soil. Moreover, little is known about the effects of soil properties on effects of NPs on plants. In this study, the availability ZnO NPs in two soils with different organic matter content (one treated with cow manure (CM) and the other as untreated) was compared with their bulk particles. Results showed that coated and uncoated ZnO NPs can be more bioaccessible than their bulk counterpart and despite their more positive effects at low concentration (< 100mgkg-1), they were more phytotoxic for plants compared to the bulk ZnO particles at high concentration (1000mgkg-1) in the soil untreated with CM. The concentration of 1000mgkg-1 of ZnO NPs, decreased shoot dry biomass (52%) in the soil untreated with CM but increased shoot dry biomass (35%) in CM-treated soil compared to their bulk counterpart. In general, plants in the CM-treated soil showed higher Zn concentration in their tissues compared with those in untreated soil. The difference in shoot Zn concentration between CM-treated and untreated soil for NPs treatments was more than bulk particles treatment. This different percentage at 100mgkg-1 of bulk particles was 20.6% and for coated and uncoated NPs were 37% and 32%, respectively. Generally, the distribution of ZnO among Zn fractions in soil (exchangeable, the metal bound to carbonates, Fe-Mn oxides, organic matter and silicate minerals and the residual fraction) changed based on applied Zn concentration, Zn source and soil organic matter content. The root tip deformation under high concentration of NPs (1000mgkg-1 treatment) was observed by light microscopy in plants at the soil untreated with CM. It seems that root tip deformation is one of the specific effects of NPs which in turn inhibits plant growth and nutrients uptake by root. The transmission electron microcopy image showed the aggregation of NPs inside the plant cytoplasm and their accumulation adjacent to the cell membrane.

Authors+Show Affiliations

Department of Soil Science, Ferdowsi University of Mashhad, 91775-1163 Mashhad, Iran.Department of Soil Science, Ferdowsi University of Mashhad, 91775-1163 Mashhad, Iran. Electronic address: afotovat@um.ac.ir.Department of Soil Science, College of Agriculture, Isfahan University of Technology, 84156-83111 Isfahan, Iran.Department of Materials Engineering, Isfahan University of Technology, 84156-83111 Isfahan, Iran.Department of Crop Science, Ferdowsi University of Mashhad, Iran.Department of Soil Science, Ferdowsi University of Mashhad, 91775-1163 Mashhad, Iran.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28688355

Citation

Moghaddasi, Sahar, et al. "Bioavailability of Coated and Uncoated ZnO Nanoparticles to Cucumber in Soil With or Without Organic Matter." Ecotoxicology and Environmental Safety, vol. 144, 2017, pp. 543-551.
Moghaddasi S, Fotovat A, Khoshgoftarmanesh AH, et al. Bioavailability of coated and uncoated ZnO nanoparticles to cucumber in soil with or without organic matter. Ecotoxicol Environ Saf. 2017;144:543-551.
Moghaddasi, S., Fotovat, A., Khoshgoftarmanesh, A. H., Karimzadeh, F., Khazaei, H. R., & Khorassani, R. (2017). Bioavailability of coated and uncoated ZnO nanoparticles to cucumber in soil with or without organic matter. Ecotoxicology and Environmental Safety, 144, 543-551. https://doi.org/10.1016/j.ecoenv.2017.06.074
Moghaddasi S, et al. Bioavailability of Coated and Uncoated ZnO Nanoparticles to Cucumber in Soil With or Without Organic Matter. Ecotoxicol Environ Saf. 2017;144:543-551. PubMed PMID: 28688355.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Bioavailability of coated and uncoated ZnO nanoparticles to cucumber in soil with or without organic matter. AU - Moghaddasi,Sahar, AU - Fotovat,Amir, AU - Khoshgoftarmanesh,Amir Hossein, AU - Karimzadeh,F, AU - Khazaei,Hamid Reza, AU - Khorassani,Reza, Y1 - 2017/07/05/ PY - 2017/01/03/received PY - 2017/06/26/revised PY - 2017/06/30/accepted PY - 2017/7/9/pubmed PY - 2017/11/29/medline PY - 2017/7/9/entrez KW - Soil fractionation KW - Uptake KW - Zinc oxide nano particles SP - 543 EP - 551 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 144 N2 - There is a gap of knowledge for the fate, effects and bioavailability of coated and uncoated ZnO nanoparticles (NPs) in soil. Moreover, little is known about the effects of soil properties on effects of NPs on plants. In this study, the availability ZnO NPs in two soils with different organic matter content (one treated with cow manure (CM) and the other as untreated) was compared with their bulk particles. Results showed that coated and uncoated ZnO NPs can be more bioaccessible than their bulk counterpart and despite their more positive effects at low concentration (< 100mgkg-1), they were more phytotoxic for plants compared to the bulk ZnO particles at high concentration (1000mgkg-1) in the soil untreated with CM. The concentration of 1000mgkg-1 of ZnO NPs, decreased shoot dry biomass (52%) in the soil untreated with CM but increased shoot dry biomass (35%) in CM-treated soil compared to their bulk counterpart. In general, plants in the CM-treated soil showed higher Zn concentration in their tissues compared with those in untreated soil. The difference in shoot Zn concentration between CM-treated and untreated soil for NPs treatments was more than bulk particles treatment. This different percentage at 100mgkg-1 of bulk particles was 20.6% and for coated and uncoated NPs were 37% and 32%, respectively. Generally, the distribution of ZnO among Zn fractions in soil (exchangeable, the metal bound to carbonates, Fe-Mn oxides, organic matter and silicate minerals and the residual fraction) changed based on applied Zn concentration, Zn source and soil organic matter content. The root tip deformation under high concentration of NPs (1000mgkg-1 treatment) was observed by light microscopy in plants at the soil untreated with CM. It seems that root tip deformation is one of the specific effects of NPs which in turn inhibits plant growth and nutrients uptake by root. The transmission electron microcopy image showed the aggregation of NPs inside the plant cytoplasm and their accumulation adjacent to the cell membrane. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/28688355/Bioavailability_of_coated_and_uncoated_ZnO_nanoparticles_to_cucumber_in_soil_with_or_without_organic_matter_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0147-6513(17)30411-6 DB - PRIME DP - Unbound Medicine ER -