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Nitric oxide ameliorates zinc oxide nanoparticles-induced phytotoxicity in rice seedlings.
J Hazard Mater. 2015 Oct 30; 297:173-82.JH

Abstract

Nitric oxide (NO) has been found to function in enhancing plant tolerance to various environmental stresses. However, role of NO in relieving zinc oxide nanoparticles (ZnO NPs)-induced phytotoxicity remains unknown. Here, sodium nitroprusside (SNP, a NO donor) was used to investigate the possible roles and the regulatory mechanisms of NO in counteracting ZnO NPs toxicity in rice seedlings. Our results showed that 10 μM SNP significantly inhibited the appearance of ZnO NP toxicity symptoms. SNP addition significantly reduced Zn accumulation, reactive oxygen species production and lipid peroxidation caused by ZnO NPs. The protective role of SNP in reducing ZnO NPs-induced oxidative damage is closely related to NO-mediated antioxidant system. A decrease in superoxide dismutase activity, as well as an increase in reduced glutathione content and peroxidase, catalase and ascorbate peroxidase activity was observed under SNP and ZnO NPs combined treatments, compared to ZnO NPs treatment alone. The relative transcript abundance of corresponding antioxidant genes exhibited a similar change. The role of NO in enhancing ZnO NPs tolerance was further confirmed by genetic analysis using a NO excess mutant (noe1) and an OsNOA1-silenced plant (noa1) of rice. Together, this study provides the first evidence indicating that NO functions in ameliorating ZnO NPs-induced phytotoxicity.

Authors+Show Affiliations

Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China; State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China.State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China.Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China.Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China; Zhejiang Academy of Agricultural Sciences, Hangzhou, Zhejiang Province 310021, China.Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China.Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China.Laboratory of Biological Resources Protection and Utilization of Hubei Province, Hubei Institutes for Nationalities, Enshi, Hubei 445000, China.State Key Laboratory of Plant Genomics and National Center for Plant Gene Research, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China.College of Life Sciences, South China Agricultural University, Guangzhou 510642, China.Key Laboratory for Subtropical Wetland Ecosystem Research of MOE, College of the Environment and Ecology, Xiamen University, Xiamen, Fujian 361005, China. Electronic address: zhenghl@xmu.edu.cn.

Pub Type(s)

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

Language

eng

PubMed ID

25958266

Citation

Chen, Juan, et al. "Nitric Oxide Ameliorates Zinc Oxide Nanoparticles-induced Phytotoxicity in Rice Seedlings." Journal of Hazardous Materials, vol. 297, 2015, pp. 173-82.
Chen J, Liu X, Wang C, et al. Nitric oxide ameliorates zinc oxide nanoparticles-induced phytotoxicity in rice seedlings. J Hazard Mater. 2015;297:173-82.
Chen, J., Liu, X., Wang, C., Yin, S. S., Li, X. L., Hu, W. J., Simon, M., Shen, Z. J., Xiao, Q., Chu, C. C., Peng, X. X., & Zheng, H. L. (2015). Nitric oxide ameliorates zinc oxide nanoparticles-induced phytotoxicity in rice seedlings. Journal of Hazardous Materials, 297, 173-82. https://doi.org/10.1016/j.jhazmat.2015.04.077
Chen J, et al. Nitric Oxide Ameliorates Zinc Oxide Nanoparticles-induced Phytotoxicity in Rice Seedlings. J Hazard Mater. 2015 Oct 30;297:173-82. PubMed PMID: 25958266.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Nitric oxide ameliorates zinc oxide nanoparticles-induced phytotoxicity in rice seedlings. AU - Chen,Juan, AU - Liu,Xiang, AU - Wang,Chao, AU - Yin,Shan-Shan, AU - Li,Xiu-Ling, AU - Hu,Wen-Jun, AU - Simon,Martin, AU - Shen,Zhi-Jun, AU - Xiao,Qiang, AU - Chu,Cheng-Cai, AU - Peng,Xin-Xiang, AU - Zheng,Hai-Lei, Y1 - 2015/04/29/ PY - 2014/11/27/received PY - 2015/04/26/revised PY - 2015/04/27/accepted PY - 2015/5/11/entrez PY - 2015/5/11/pubmed PY - 2016/6/2/medline KW - Antioxidant KW - Nitric oxide KW - Phytotoxicity KW - Rice KW - Zinc oxide nanoparticles SP - 173 EP - 82 JF - Journal of hazardous materials JO - J Hazard Mater VL - 297 N2 - Nitric oxide (NO) has been found to function in enhancing plant tolerance to various environmental stresses. However, role of NO in relieving zinc oxide nanoparticles (ZnO NPs)-induced phytotoxicity remains unknown. Here, sodium nitroprusside (SNP, a NO donor) was used to investigate the possible roles and the regulatory mechanisms of NO in counteracting ZnO NPs toxicity in rice seedlings. Our results showed that 10 μM SNP significantly inhibited the appearance of ZnO NP toxicity symptoms. SNP addition significantly reduced Zn accumulation, reactive oxygen species production and lipid peroxidation caused by ZnO NPs. The protective role of SNP in reducing ZnO NPs-induced oxidative damage is closely related to NO-mediated antioxidant system. A decrease in superoxide dismutase activity, as well as an increase in reduced glutathione content and peroxidase, catalase and ascorbate peroxidase activity was observed under SNP and ZnO NPs combined treatments, compared to ZnO NPs treatment alone. The relative transcript abundance of corresponding antioxidant genes exhibited a similar change. The role of NO in enhancing ZnO NPs tolerance was further confirmed by genetic analysis using a NO excess mutant (noe1) and an OsNOA1-silenced plant (noa1) of rice. Together, this study provides the first evidence indicating that NO functions in ameliorating ZnO NPs-induced phytotoxicity. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/25958266/Nitric_oxide_ameliorates_zinc_oxide_nanoparticles_induced_phytotoxicity_in_rice_seedlings_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(15)00375-1 DB - PRIME DP - Unbound Medicine ER -