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DOI: | 10.1139/cjps-2015-0109 |
Web URL(s): | http://www.nrcresearchpress.com/doi/full/10.1139/cjps-2015-0109#.V9aqGPkrKig Last checked: 09/12/2016 Access conditions: Item is within a limited-access website http://www.nrcresearchpress.com/doi/pdf/10.1139/cjps-2015-0109 Last checked: 09/12/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Gao, Li Mei;
Li, Yong Feng;
Han, Rong |
Author Affiliation: | Analysis and Testing Center, Higher Education Key Laboratory of Plant Molecular and Environmental Stress Response of Shanxi Province, College of Life Science, Shanxi Normal University, Linfen, Shanxi, P.R. China |
Title: | The detoxification effects of He-Ne laser irradiation on cytotoxicity of cadmium sulfide nanoparticles (CdSNPs) in tall fescue seedlings |
Source: | Canadian Journal of Plant Science. Vol. 96, No. 4, August 2016, p. 539-550. |
Publishing Information: | Ottawa, Ontario, Canada: Agricultural Institute of Canada |
# of Pages: | 12 |
Related Web URL: | http://www.nrcresearchpress.com/doi/abs/10.1139/cjps-2015-0109#.V9qj0k0rKig Last checked: 09/15/2016 Notes: Abstract only |
Keywords: | TIC Keywords: Antioxidants; Cadmium compounds; Festuca arundinacea; Irradiation; Phytochelatins; Phytotoxins; Seed germination
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Abstract/Contents: | "Because of their wide applications in manufacturing life science and medicine, nanoparticles (NPs) are becoming potential limiting factors for agricultural plant growth and productivity. Thus, development of some low cost and low risk methods for detoxifying or alleviating cytotoxicity of NPs on crops would be a proactive attractive solution. In this study, we investigated the ameliorating effect of He-Ne laser illumination of seedlings on cytotoxicity of cadmium sulfide nanoparticles (CdSNPs) in tall fescue seedlings. Physiological parameters and biochemical characteristics of 20-d-old seedlings with different times of laser illumination and graded doses of CdSNPs treatment, either alone or in combination, were measured. Cadmiun [Cadmium] sulfide nanoparticles exhibited pronounced inhibitory effect on shoot and root growth, respectively. Accumulation of CdSNPs in plant root cells resulted in oxidative stress as detected by the formation of reactive oxygen species (ROS), which aggravate the cytotoxicity of CdSNPs on seedlings. Treatment of seedlings with CdSNPs alone also reduced antioxidant concentration, phytochelatins (PCs) content, enzymatic activities of phytochelatin synthase (PCS), and antioxidant enzymes, such as CAT, APX, GR, and POD, except SOD. However, He-Ne laser illumination prior to CdSNPs exposure alleviated the inhibitory effect on seedling growth and development through activation of tall fescue antioxidant systems due to induction of antioxidants biosynthesis and antioxidant enzyme activities. Furthermore, PCs and GSH induced by laser was also demonstrated to be involved in decreasing the cytotoxicity of CdSNPs through binding free cadmium ions release from CdSNPs. The interactive mechanisms between He-Ne lasers, plant antioxidant systems, and PCs biosynthesis pathways need be further investigated." |
Language: | English |
References: | 42 |
Note: | Abstract also appears in French Pictures, color & b/w Figures Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Gao, L. M., Y. F. Li, and R. Han. 2016. The detoxification effects of He-Ne laser irradiation on cytotoxicity of cadmium sulfide nanoparticles (CdSNPs) in tall fescue seedlings. Can. J. Plant Sci. 96(4):p. 539-550. |
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| DOI: 10.1139/cjps-2015-0109 |
| Web URL(s): http://www.nrcresearchpress.com/doi/full/10.1139/cjps-2015-0109#.V9aqGPkrKig Last checked: 09/12/2016 Access conditions: Item is within a limited-access website http://www.nrcresearchpress.com/doi/pdf/10.1139/cjps-2015-0109 Last checked: 09/12/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: b2210781a |
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