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Retraction published on 2 March 2015, see Nanomaterials 2015, 5(1), 268-269.

Open AccessArticle
Nanomaterials 2014, 4(2), 203-221; doi:10.3390/nano4020203

Potential Impact of Multi-Walled Carbon Nanotubes Exposure to the Seedling Stage of Selected Plant Species

Laboratory of Environmental Medical Chemistry, Graduate School of Environmental Science, Hokkaido University, Sapporo 060-0810, Japan
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Author to whom correspondence should be addressed.
Received: 7 February 2014 / Revised: 22 March 2014 / Accepted: 22 March 2014 / Published: 31 March 2014
(This article belongs to the Special Issue Nanotoxicology)
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Abstract

Phytotoxicity is a significant consideration in understanding the potential environmental impact of nanoparticles. Abundant experimental data have shown that multi-walled carbon nanotubes (MWNTs) are toxic to plants, but the potential impacts of exposure remain unclear. The objective of the present study was to evaluate possible phytotoxicity of MWNTs at 0, 20, 200, 1000, and 2000 mg/L with red spinach, lettuce, rice, cucumber, chili, lady’s finger, and soybean, based on root and shoot growth, cell death, and electrolyte leakage at the seedling stage. After 15 days of hydroponic culture, the root and shoot lengths of red spinach, lettuce, and cucumber were significantly reduced following exposure to 1000 mg/L and 2000 mg/L MWNTs. Similar toxic effects occurred regarding cell death and electrolyte leakage. Red spinach and lettuce were most sensitive to MWNTs, followed by rice and cucumber. Very little or no toxic effects were observed for chili, lady’s finger, and soybean.
Keywords: phytotoxicity; multi-walled carbon nanotubes (MWNTs); seedling stage; cell death; electrolyte leakage phytotoxicity; multi-walled carbon nanotubes (MWNTs); seedling stage; cell death; electrolyte leakage
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Begum, P.; Ikhtiari, R.; Fugetsu, B. Potential Impact of Multi-Walled Carbon Nanotubes Exposure to the Seedling Stage of Selected Plant Species. Nanomaterials 2014, 4, 203-221.

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