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Influence of metal oxide particles on soil enzyme activity and bioaccumulation of two plants.
J Microbiol Biotechnol. 2013 Sep 28; 23(9):1279-86.JM

Abstract

Particle size and metal species are important to both soil microbial toxicity and phytotoxicity in the soil ecosystem. The effects of CuO and ZnO nanoparticles (NPs) and microparticles (MPs) on soil microbial toxicity, phytotoxicity, and bioaccumulation in two crops (Cucumis sativus and Zea mays) were estimated in a soil microcosm. In the microcosm system, soil was artificially contaminated with 1,000 mg/kg CuO and ZnO NPs and MPs. After 15 days, we compared the microbial toxicity and phytotoxicity by particle size. In addition, C. sativus and Z. mays were cultivated in soils treated with CuO NPs and ZnO NPs, after which the treatment effects on bioaccumulation were evaluated. NPs were more toxic than MPs to microbes and plants in the soil ecosystem. We found that the soil enzyme activity and plant biomass were inhibited to the greatest extent by CuO NPs. However, in a Biolog test, substrate utilization patterns were more dependent upon metal type than particle size. Another finding indicated that the metal NP uptake amounts of plants depend on the plant species. In the comparison between C. sativus and Z. mays, the accumulation of Cu and Zn by C. sativus was noticeably higher. These findings show that metal oxide NPs may negatively impact soil bacteria and plants. In addition, the accumulation patterns of NPs depend on the plant species.

Authors+Show Affiliations

Division of EcoScience, Ewha Womans University, Seoul 120-750, Republic of Korea.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

23751560

Citation

Kim, Sunghyun, et al. "Influence of Metal Oxide Particles On Soil Enzyme Activity and Bioaccumulation of Two Plants." Journal of Microbiology and Biotechnology, vol. 23, no. 9, 2013, pp. 1279-86.
Kim S, Sin H, Lee S, et al. Influence of metal oxide particles on soil enzyme activity and bioaccumulation of two plants. J Microbiol Biotechnol. 2013;23(9):1279-86.
Kim, S., Sin, H., Lee, S., & Lee, I. (2013). Influence of metal oxide particles on soil enzyme activity and bioaccumulation of two plants. Journal of Microbiology and Biotechnology, 23(9), 1279-86.
Kim S, et al. Influence of Metal Oxide Particles On Soil Enzyme Activity and Bioaccumulation of Two Plants. J Microbiol Biotechnol. 2013 Sep 28;23(9):1279-86. PubMed PMID: 23751560.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of metal oxide particles on soil enzyme activity and bioaccumulation of two plants. AU - Kim,Sunghyun, AU - Sin,Hyunjoo, AU - Lee,Sooyeon, AU - Lee,Insook, PY - 2013/6/12/entrez PY - 2013/6/12/pubmed PY - 2014/4/8/medline SP - 1279 EP - 86 JF - Journal of microbiology and biotechnology JO - J Microbiol Biotechnol VL - 23 IS - 9 N2 - Particle size and metal species are important to both soil microbial toxicity and phytotoxicity in the soil ecosystem. The effects of CuO and ZnO nanoparticles (NPs) and microparticles (MPs) on soil microbial toxicity, phytotoxicity, and bioaccumulation in two crops (Cucumis sativus and Zea mays) were estimated in a soil microcosm. In the microcosm system, soil was artificially contaminated with 1,000 mg/kg CuO and ZnO NPs and MPs. After 15 days, we compared the microbial toxicity and phytotoxicity by particle size. In addition, C. sativus and Z. mays were cultivated in soils treated with CuO NPs and ZnO NPs, after which the treatment effects on bioaccumulation were evaluated. NPs were more toxic than MPs to microbes and plants in the soil ecosystem. We found that the soil enzyme activity and plant biomass were inhibited to the greatest extent by CuO NPs. However, in a Biolog test, substrate utilization patterns were more dependent upon metal type than particle size. Another finding indicated that the metal NP uptake amounts of plants depend on the plant species. In the comparison between C. sativus and Z. mays, the accumulation of Cu and Zn by C. sativus was noticeably higher. These findings show that metal oxide NPs may negatively impact soil bacteria and plants. In addition, the accumulation patterns of NPs depend on the plant species. SN - 1738-8872 UR - https://www.unboundmedicine.com/medline/citation/23751560/Influence_of_metal_oxide_particles_on_soil_enzyme_activity_and_bioaccumulation_of_two_plants_ L2 - http://www.jmb.or.kr/journal/view.html?doi=10.4014/jmb.1304.04084 DB - PRIME DP - Unbound Medicine ER -