Bioaccumulation and Toxicity of 13C-Skeleton Labeled Graphene Oxide in Wheat
Graphene nanomaterials have many diverse applications, but are considered to be emerging environmental pollutants. Thus, their potential environmental risks and biosafety are receiving increased attention. Bioaccumulation and toxicity evaluations in plants are essential for biosafety assessment. In...
Ausführliche Beschreibung
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| Autor*in: |
Lingyun Chen [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2017 |
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| Übergeordnetes Werk: |
Enthalten in: Environmental science & technology - Washington, DC : ACS Publ., 1967, 51(2017), 17, Seite 10146 |
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| Übergeordnetes Werk: |
volume:51 ; year:2017 ; number:17 ; pages:10146 |
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| 520 | |a Graphene nanomaterials have many diverse applications, but are considered to be emerging environmental pollutants. Thus, their potential environmental risks and biosafety are receiving increased attention. Bioaccumulation and toxicity evaluations in plants are essential for biosafety assessment. In this study, 13C-stable isotope labeling of the carbon skeleton of graphene oxide (GO) was applied to investigate the bioaccumulation and toxicity of GO in wheat. Bioaccumulation of GO was accurately quantified according to the 13C/12C ratio. Wheat seedlings were exposed to 13C-labeled GO at 1.0 mg/mL in nutrient solution for 15 d. 13C-GO accumulated predominantly in the root with a content of 112 μg/g at day 15, hindered the development and growth of wheat plants, disrupted root structure and cellular ultrastructure, and promoted oxidative stress. The GO that accumulated in the root showed extremely limited translocation to the stem and leaves. During the experimental period, GO was excreted slowly from the root. GO inhibited the germination of wheat seeds at high concentrations (≥0.4 mg/mL). The mechanism of GO toxicity to wheat may be associated with oxidative stress induced by GO bioaccumulation, reflected by the changes of malondialdehyde concentration, catalase activity, and peroxidase activity. The results demonstrate that 13C labeling is a promising method to investigate environmental impacts and fates of carbon nanomaterials in biological systems. | ||
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PQ20171228 (DE-627)OLC1997464667 (DE-599)GBVOLC1997464667 (PRQ)p865-943b0ea264d6c0c3d5fda2b7c39cd8c223ebb44a0cc7bb825cceaf3940557350 (KEY)0072627320170000051001710146bioaccumulationandtoxicityof13cskeletonlabeledgrap DE-627 ger DE-627 rakwb eng 050 333.7 DNB Lingyun Chen verfasserin aut Bioaccumulation and Toxicity of 13C-Skeleton Labeled Graphene Oxide in Wheat 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Graphene nanomaterials have many diverse applications, but are considered to be emerging environmental pollutants. Thus, their potential environmental risks and biosafety are receiving increased attention. Bioaccumulation and toxicity evaluations in plants are essential for biosafety assessment. In this study, 13C-stable isotope labeling of the carbon skeleton of graphene oxide (GO) was applied to investigate the bioaccumulation and toxicity of GO in wheat. Bioaccumulation of GO was accurately quantified according to the 13C/12C ratio. Wheat seedlings were exposed to 13C-labeled GO at 1.0 mg/mL in nutrient solution for 15 d. 13C-GO accumulated predominantly in the root with a content of 112 μg/g at day 15, hindered the development and growth of wheat plants, disrupted root structure and cellular ultrastructure, and promoted oxidative stress. The GO that accumulated in the root showed extremely limited translocation to the stem and leaves. During the experimental period, GO was excreted slowly from the root. GO inhibited the germination of wheat seeds at high concentrations (≥0.4 mg/mL). The mechanism of GO toxicity to wheat may be associated with oxidative stress induced by GO bioaccumulation, reflected by the changes of malondialdehyde concentration, catalase activity, and peroxidase activity. The results demonstrate that 13C labeling is a promising method to investigate environmental impacts and fates of carbon nanomaterials in biological systems. Peroxidase Chemical compounds Nanotechnology Plants (organisms) Nanomaterials Labelling Carbon Pollutants Oxidative stress Ultrastructure Translocation Malondialdehyde Germination Seeds Cellular structure Graphene Leaves Environmental impact Toxicity Ecological risk assessment Catalase Bioaccumulation Environmental risk Seedlings Wheat Chenglong Wang oth Hongliang Li oth Xiulong Qu oth Sheng-Tao Yang oth Xue-Ling Chang oth Enthalten in Environmental science & technology Washington, DC : ACS Publ., 1967 51(2017), 17, Seite 10146 (DE-627)129852457 (DE-600)280653-8 (DE-576)01515274X 0013-936X nnns volume:51 year:2017 number:17 pages:10146 https://search.proquest.com/docview/1951132555 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 GBV_ILN_252 GBV_ILN_2006 GBV_ILN_4323 AR 51 2017 17 10146 |
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PQ20171228 (DE-627)OLC1997464667 (DE-599)GBVOLC1997464667 (PRQ)p865-943b0ea264d6c0c3d5fda2b7c39cd8c223ebb44a0cc7bb825cceaf3940557350 (KEY)0072627320170000051001710146bioaccumulationandtoxicityof13cskeletonlabeledgrap DE-627 ger DE-627 rakwb eng 050 333.7 DNB Lingyun Chen verfasserin aut Bioaccumulation and Toxicity of 13C-Skeleton Labeled Graphene Oxide in Wheat 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Graphene nanomaterials have many diverse applications, but are considered to be emerging environmental pollutants. Thus, their potential environmental risks and biosafety are receiving increased attention. Bioaccumulation and toxicity evaluations in plants are essential for biosafety assessment. In this study, 13C-stable isotope labeling of the carbon skeleton of graphene oxide (GO) was applied to investigate the bioaccumulation and toxicity of GO in wheat. Bioaccumulation of GO was accurately quantified according to the 13C/12C ratio. Wheat seedlings were exposed to 13C-labeled GO at 1.0 mg/mL in nutrient solution for 15 d. 13C-GO accumulated predominantly in the root with a content of 112 μg/g at day 15, hindered the development and growth of wheat plants, disrupted root structure and cellular ultrastructure, and promoted oxidative stress. The GO that accumulated in the root showed extremely limited translocation to the stem and leaves. During the experimental period, GO was excreted slowly from the root. GO inhibited the germination of wheat seeds at high concentrations (≥0.4 mg/mL). The mechanism of GO toxicity to wheat may be associated with oxidative stress induced by GO bioaccumulation, reflected by the changes of malondialdehyde concentration, catalase activity, and peroxidase activity. The results demonstrate that 13C labeling is a promising method to investigate environmental impacts and fates of carbon nanomaterials in biological systems. Peroxidase Chemical compounds Nanotechnology Plants (organisms) Nanomaterials Labelling Carbon Pollutants Oxidative stress Ultrastructure Translocation Malondialdehyde Germination Seeds Cellular structure Graphene Leaves Environmental impact Toxicity Ecological risk assessment Catalase Bioaccumulation Environmental risk Seedlings Wheat Chenglong Wang oth Hongliang Li oth Xiulong Qu oth Sheng-Tao Yang oth Xue-Ling Chang oth Enthalten in Environmental science & technology Washington, DC : ACS Publ., 1967 51(2017), 17, Seite 10146 (DE-627)129852457 (DE-600)280653-8 (DE-576)01515274X 0013-936X nnns volume:51 year:2017 number:17 pages:10146 https://search.proquest.com/docview/1951132555 GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-UMW SSG-OLC-TEC SSG-OLC-CHE SSG-OLC-PHA SSG-OLC-DE-84 GBV_ILN_70 GBV_ILN_252 GBV_ILN_2006 GBV_ILN_4323 AR 51 2017 17 10146 |
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050 333.7 DNB Bioaccumulation and Toxicity of 13C-Skeleton Labeled Graphene Oxide in Wheat Peroxidase Chemical compounds Nanotechnology Plants (organisms) Nanomaterials Labelling Carbon Pollutants Oxidative stress Ultrastructure Translocation Malondialdehyde Germination Seeds Cellular structure Graphene Leaves Environmental impact Toxicity Ecological risk assessment Catalase Bioaccumulation Environmental risk Seedlings Wheat |
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Bioaccumulation and Toxicity of 13C-Skeleton Labeled Graphene Oxide in Wheat |
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bioaccumulation and toxicity of 13c-skeleton labeled graphene oxide in wheat |
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Bioaccumulation and Toxicity of 13C-Skeleton Labeled Graphene Oxide in Wheat |
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Graphene nanomaterials have many diverse applications, but are considered to be emerging environmental pollutants. Thus, their potential environmental risks and biosafety are receiving increased attention. Bioaccumulation and toxicity evaluations in plants are essential for biosafety assessment. In this study, 13C-stable isotope labeling of the carbon skeleton of graphene oxide (GO) was applied to investigate the bioaccumulation and toxicity of GO in wheat. Bioaccumulation of GO was accurately quantified according to the 13C/12C ratio. Wheat seedlings were exposed to 13C-labeled GO at 1.0 mg/mL in nutrient solution for 15 d. 13C-GO accumulated predominantly in the root with a content of 112 μg/g at day 15, hindered the development and growth of wheat plants, disrupted root structure and cellular ultrastructure, and promoted oxidative stress. The GO that accumulated in the root showed extremely limited translocation to the stem and leaves. During the experimental period, GO was excreted slowly from the root. GO inhibited the germination of wheat seeds at high concentrations (≥0.4 mg/mL). The mechanism of GO toxicity to wheat may be associated with oxidative stress induced by GO bioaccumulation, reflected by the changes of malondialdehyde concentration, catalase activity, and peroxidase activity. The results demonstrate that 13C labeling is a promising method to investigate environmental impacts and fates of carbon nanomaterials in biological systems. |
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Graphene nanomaterials have many diverse applications, but are considered to be emerging environmental pollutants. Thus, their potential environmental risks and biosafety are receiving increased attention. Bioaccumulation and toxicity evaluations in plants are essential for biosafety assessment. In this study, 13C-stable isotope labeling of the carbon skeleton of graphene oxide (GO) was applied to investigate the bioaccumulation and toxicity of GO in wheat. Bioaccumulation of GO was accurately quantified according to the 13C/12C ratio. Wheat seedlings were exposed to 13C-labeled GO at 1.0 mg/mL in nutrient solution for 15 d. 13C-GO accumulated predominantly in the root with a content of 112 μg/g at day 15, hindered the development and growth of wheat plants, disrupted root structure and cellular ultrastructure, and promoted oxidative stress. The GO that accumulated in the root showed extremely limited translocation to the stem and leaves. During the experimental period, GO was excreted slowly from the root. GO inhibited the germination of wheat seeds at high concentrations (≥0.4 mg/mL). The mechanism of GO toxicity to wheat may be associated with oxidative stress induced by GO bioaccumulation, reflected by the changes of malondialdehyde concentration, catalase activity, and peroxidase activity. The results demonstrate that 13C labeling is a promising method to investigate environmental impacts and fates of carbon nanomaterials in biological systems. |
| abstract_unstemmed |
Graphene nanomaterials have many diverse applications, but are considered to be emerging environmental pollutants. Thus, their potential environmental risks and biosafety are receiving increased attention. Bioaccumulation and toxicity evaluations in plants are essential for biosafety assessment. In this study, 13C-stable isotope labeling of the carbon skeleton of graphene oxide (GO) was applied to investigate the bioaccumulation and toxicity of GO in wheat. Bioaccumulation of GO was accurately quantified according to the 13C/12C ratio. Wheat seedlings were exposed to 13C-labeled GO at 1.0 mg/mL in nutrient solution for 15 d. 13C-GO accumulated predominantly in the root with a content of 112 μg/g at day 15, hindered the development and growth of wheat plants, disrupted root structure and cellular ultrastructure, and promoted oxidative stress. The GO that accumulated in the root showed extremely limited translocation to the stem and leaves. During the experimental period, GO was excreted slowly from the root. GO inhibited the germination of wheat seeds at high concentrations (≥0.4 mg/mL). The mechanism of GO toxicity to wheat may be associated with oxidative stress induced by GO bioaccumulation, reflected by the changes of malondialdehyde concentration, catalase activity, and peroxidase activity. The results demonstrate that 13C labeling is a promising method to investigate environmental impacts and fates of carbon nanomaterials in biological systems. |
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