NDLI: Toxic Effects of Copper-based Nanoparticles or Compounds to Lettuce (Lactuca sativa) and Alfalfa (Medicago sativa)

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Toxic Effects of Copper-based Nanoparticles or Compounds to Lettuce (Lactuca sativa) and Alfalfa (Medicago sativa)

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Toxic Effects of Copper-based Nanoparticles or Compounds to Lettuce (Lactuca sativa) and Alfalfa (Medicago sativa)

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Hong, Jie Rico, Cyren M. Zhao, Lijuan Adeleye, Adeyemi S. Keller, Arturo A. Peralta-Videa, Jose R. Gardea-Torresdey, Jorge L.
Description	Country affiliation: United States Author Affiliation: Hong J ( Environmental Sience and Engineering PhD Program, The University of Texas at El Paso, 500 W. Univ. Av., El Paso, Texas 79968, USA. jgardea@utep.edu.)
Abstract	The increased production and use of nanoparticles (NPs) has generated concerns about their impact on living organisms. In this study, nCu, bulk Cu, nCuO, bulk CuO, $Cu(OH)_{2}$ (CuPRO 2005, Kocide 3000), and $CuCl_{2}$ were exposed for 15 days to 10 day-old hydroponically grown lettuce (Lactuca sativa) and alfalfa (Medicago sativa). Each compound was applied at 0, 5, 10, and 20 mg/L. At harvest, we measured the size of the plants and determined the concentration of Cu, macro and microelements by using ICP-OES. Catalase and ascorbate peroxidase activity was also determined. Results showed that all Cu NPs/compounds reduced the root length by 49% in both plant species. All Cu NPs/compounds increased Cu, P, and S (>100%, >50%, and >20%, respectively) in alfalfa shoots and decreased P and Fe in lettuce shoot (>50% and >50%, respectively, excluding Fe in $CuCl_{2}$ treatment). Biochemical assays showed reduced catalase activity in alfalfa (root and shoot) and increased ascorbate peroxidase activity in roots of both plant species. Results suggest that Cu NPs/compounds not only reduced the size of the plants but altered nutrient content and enzyme activity in both plant species.
File Format	HTM / HTML
ISSN	20507887
e-ISSN	20507895
DOI	10.1039/c4em00551a
Journal	Environmental Science: Processes & Impacts
Issue Number	1
Volume Number	17
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2015-01-01
Publisher Place	Great Britain (UK)
Access Restriction	Open
Subject Keyword	Discipline Environmental Health Copper Toxicity Lettuce Drug Effects Medicago Sativa Metal Nanoparticles Water Pollutants, Chemical Catalase Hydroponics Metabolism Research Support, N.i.h., Extramural Research Support, Non-u.s. Gov't Research Support, U.s. Gov't, Non-p.h.s.
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

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Toxic Effects of Copper-based Nanoparticles or Compounds to Lettuce (Lactuca sativa) and Alfalfa (Medicago sativa)

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Toxic Effects of Copper-based Nanoparticles or Compounds to Lettuce (Lactuca sativa) and Alfalfa (Medicago sativa)

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Toxic Effects of Copper-based Nanoparticles or Compounds to Lettuce (Lactuca sativa) and Alfalfa (Medicago sativa)