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Effects of Zn and ZnO nanoparticles and zn 2+ on soil enzyme activity and bioaccumulation of Zn in Cucumis sativus

Title
Effects of Zn and ZnO nanoparticles and zn 2+ on soil enzyme activity and bioaccumulation of Zn in Cucumis sativus
Authors
Kim S.Kim J.Lee I.
Ewha Authors
이인숙
SCOPUS Author ID
이인숙scopusscopus
Issue Date
2011
Journal Title
Chemistry and Ecology
ISSN
0275-7540JCR Link
Citation
vol. 27, no. 1, pp. 49 - 55
Indexed
SCIE; SCOPUS WOS scopus
Abstract
The increased production and commercial use of nanoparticles (NPs), combined with a lack of regulation regarding their disposal, may result in the unwanted introduction of NPs to soils. In this study, the toxicity on soil enzyme activity and growth of Cucumis sativus treated with Zn or ZnO NPs was evaluated in pot soils. Specifically, C. sativus was cultivated in soils treated with Zn NPs, ZnO NPs or Zn 2+ for eight weeks, after which the treatment effects on biomass and bioaccumulation were evaluated. In addition, the treatment effects on soil dehydrogenase, β-glucosidase and acid phosphatase were investigated. Soil enzyme activities were influenced by all treatments, with an especially large decrease in dehydrogenase activity in response to Zn 2+ treatment. Biomass and root length also decreased in response to Zn 2+ treatment. Finally, the Zn contents of C. sativus were much lower in the Zn NP and ZnO NP treatment groups than in the Zn 2+ treatment group. Therefore, toxicity on soil microbial activity may have a greater influence than phytotoxicity due to immobilisation and aggregation of NPs in the soil. © 2011 Taylor & Francis.
DOI
10.1080/02757540.2010.529074
Appears in Collections:
자연과학대학 > 생명과학전공 > Journal papers
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