Effects of graphene oxides on soil enzyme activity and microbial biomass

Haegeun Chung; Min Ji Kim; Kwanyoung Ko; Jae Hyeuk Kim; Hyun ah Kwon; Inpyo Hong; Nari Park; Seung Wook Lee; Woong Kim

doi:10.1016/j.scitotenv.2015.01.077

Effects of graphene oxides on soil enzyme activity and microbial biomass

Haegeun Chung, Min Ji Kim, Kwanyoung Ko, Jae Hyeuk Kim, Hyun ah Kwon, Inpyo Hong, Nari Park, Seung Wook Lee, Woong Kim

Research output: Contribution to journal › Article › peer-review

94 Citations (Scopus)

Abstract

Due to recent developments in nanotechnology, nanomaterials (NMs) such as graphene oxide (GO) may enter the soil environment with mostly unknown consequences. We investigated the effects of GO on soil microbial activity in a 59-day soil incubation study. For this, high-purity GO was prepared and characterized. Soils were treated with up to 1mgGOg^-1 soil, and the changes in the activities of 1,4-β-glucosidase, cellobiohydrolase, xylosidase, 1,4-β-N-acetyl glucosaminidase, and phosphatase and microbial biomass were determined. 0.5-1mg GOg^-1 soil lowered the activity of xylosidase, 1,4-β-N-acetyl glucosaminidase, and phosphatase by up to 50% when compared to that in the control soils up to 21days of incubation. Microbial biomass in soils treated with GO was not significantly different from that in control soils throughout the incubation period, and the soil enzyme activity and microbial biomass were not significantly correlated in this study. Our results indicate that soil enzyme activity can be lowered by the entry of GO into soils in short term but it can be recovered afterwards.

Original language	English
Pages (from-to)	307-313
Number of pages	7
Journal	Science of the Total Environment
Volume	514
DOIs	https://doi.org/10.1016/j.scitotenv.2015.01.077
Publication status	Published - 2015 May 1

Bibliographical note

Funding Information:
This work was supported by the faculty research fund of Konkuk University in 2011.

Publisher Copyright:
© 2015 Elsevier B.V.

Keywords

Extracellular enzymes
Microbial biomass
Nanomaterial
Soil incubation
Soil microorganisms

ASJC Scopus subject areas

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution

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10.1016/j.scitotenv.2015.01.077

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title = "Effects of graphene oxides on soil enzyme activity and microbial biomass",

abstract = "Due to recent developments in nanotechnology, nanomaterials (NMs) such as graphene oxide (GO) may enter the soil environment with mostly unknown consequences. We investigated the effects of GO on soil microbial activity in a 59-day soil incubation study. For this, high-purity GO was prepared and characterized. Soils were treated with up to 1mgGOg-1 soil, and the changes in the activities of 1,4-β-glucosidase, cellobiohydrolase, xylosidase, 1,4-β-N-acetyl glucosaminidase, and phosphatase and microbial biomass were determined. 0.5-1mg GOg-1 soil lowered the activity of xylosidase, 1,4-β-N-acetyl glucosaminidase, and phosphatase by up to 50% when compared to that in the control soils up to 21days of incubation. Microbial biomass in soils treated with GO was not significantly different from that in control soils throughout the incubation period, and the soil enzyme activity and microbial biomass were not significantly correlated in this study. Our results indicate that soil enzyme activity can be lowered by the entry of GO into soils in short term but it can be recovered afterwards.",

keywords = "Extracellular enzymes, Microbial biomass, Nanomaterial, Soil incubation, Soil microorganisms",

author = "Haegeun Chung and Kim, {Min Ji} and Kwanyoung Ko and Kim, {Jae Hyeuk} and Kwon, {Hyun ah} and Inpyo Hong and Nari Park and Lee, {Seung Wook} and Woong Kim",

note = "Funding Information: This work was supported by the faculty research fund of Konkuk University in 2011. Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

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doi = "10.1016/j.scitotenv.2015.01.077",

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AU - Chung, Haegeun

AU - Kim, Min Ji

AU - Ko, Kwanyoung

AU - Kim, Jae Hyeuk

AU - Kwon, Hyun ah

AU - Hong, Inpyo

AU - Park, Nari

AU - Lee, Seung Wook

AU - Kim, Woong

PY - 2015/5/1

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N2 - Due to recent developments in nanotechnology, nanomaterials (NMs) such as graphene oxide (GO) may enter the soil environment with mostly unknown consequences. We investigated the effects of GO on soil microbial activity in a 59-day soil incubation study. For this, high-purity GO was prepared and characterized. Soils were treated with up to 1mgGOg-1 soil, and the changes in the activities of 1,4-β-glucosidase, cellobiohydrolase, xylosidase, 1,4-β-N-acetyl glucosaminidase, and phosphatase and microbial biomass were determined. 0.5-1mg GOg-1 soil lowered the activity of xylosidase, 1,4-β-N-acetyl glucosaminidase, and phosphatase by up to 50% when compared to that in the control soils up to 21days of incubation. Microbial biomass in soils treated with GO was not significantly different from that in control soils throughout the incubation period, and the soil enzyme activity and microbial biomass were not significantly correlated in this study. Our results indicate that soil enzyme activity can be lowered by the entry of GO into soils in short term but it can be recovered afterwards.

AB - Due to recent developments in nanotechnology, nanomaterials (NMs) such as graphene oxide (GO) may enter the soil environment with mostly unknown consequences. We investigated the effects of GO on soil microbial activity in a 59-day soil incubation study. For this, high-purity GO was prepared and characterized. Soils were treated with up to 1mgGOg-1 soil, and the changes in the activities of 1,4-β-glucosidase, cellobiohydrolase, xylosidase, 1,4-β-N-acetyl glucosaminidase, and phosphatase and microbial biomass were determined. 0.5-1mg GOg-1 soil lowered the activity of xylosidase, 1,4-β-N-acetyl glucosaminidase, and phosphatase by up to 50% when compared to that in the control soils up to 21days of incubation. Microbial biomass in soils treated with GO was not significantly different from that in control soils throughout the incubation period, and the soil enzyme activity and microbial biomass were not significantly correlated in this study. Our results indicate that soil enzyme activity can be lowered by the entry of GO into soils in short term but it can be recovered afterwards.

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KW - Microbial biomass

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Effects of graphene oxides on soil enzyme activity and microbial biomass

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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