Abstract
Recent developments in nanotechnology may lead to the release of nanomaterials into the natural environment, such as soils, with largely unknown consequences. We investigated the effects of single-walled carbon nanotubes (SWCNTs), one of the most widely used nanomaterials, on soil microbial communities by incubation of soils to which powder or suspended forms of SWCNTs were added (0.03 to 1mgg-1 soil). To determine changes in soil microbial community composition, phospholipid fatty acid (PLFA) profiles were analyzed at 25th day of the incubation experiment. The biomass of major microbial groups including Gram-positive and Gram-negative bacteria, and fungi showed a significant negative relationship with SWCNT concentration, while the relative abundance of bacteria showed a positive relationship with SWCNT concentration. Furthermore, soils under distinct concentrations of SWCNT treatments had PLFA profiles that were significantly different from one another. Our results indicate that the biomass of a broad range of soil microbial groups is negatively related with SWCNT concentration and upon entry into soils, SWCNTs may alter microbial community composition. Our results may serve as foundation for scientific guideline on regulating the discharge of nanomaterials such as SWCNTs to the soil ecosystem.
| Original language | English |
|---|---|
| Pages (from-to) | 533-538 |
| Number of pages | 6 |
| Journal | Science of the Total Environment |
| Volume | 466-467 |
| DOIs | |
| Publication status | Published - 2014 Jan 1 |
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Keywords
- Bacteria
- Fungi
- Nanomaterial
- Phospholipid fatty acid (PLFA)
- Soil incubation
- Soil microorganism
ASJC Scopus subject areas
- Environmental Chemistry
- Pollution
- Waste Management and Disposal
- Environmental Engineering
Cite this
Single-walled carbon nanotubes alter soil microbial community composition. / Jin, Lixia; Son, Yo Whan; DeForest, Jared L.; Kang, Yu Jin; Kim, Woong; Chung, Haegeun.
In: Science of the Total Environment, Vol. 466-467, 01.01.2014, p. 533-538.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Single-walled carbon nanotubes alter soil microbial community composition
AU - Jin, Lixia
AU - Son, Yo Whan
AU - DeForest, Jared L.
AU - Kang, Yu Jin
AU - Kim, Woong
AU - Chung, Haegeun
PY - 2014/1/1
Y1 - 2014/1/1
N2 - Recent developments in nanotechnology may lead to the release of nanomaterials into the natural environment, such as soils, with largely unknown consequences. We investigated the effects of single-walled carbon nanotubes (SWCNTs), one of the most widely used nanomaterials, on soil microbial communities by incubation of soils to which powder or suspended forms of SWCNTs were added (0.03 to 1mgg-1 soil). To determine changes in soil microbial community composition, phospholipid fatty acid (PLFA) profiles were analyzed at 25th day of the incubation experiment. The biomass of major microbial groups including Gram-positive and Gram-negative bacteria, and fungi showed a significant negative relationship with SWCNT concentration, while the relative abundance of bacteria showed a positive relationship with SWCNT concentration. Furthermore, soils under distinct concentrations of SWCNT treatments had PLFA profiles that were significantly different from one another. Our results indicate that the biomass of a broad range of soil microbial groups is negatively related with SWCNT concentration and upon entry into soils, SWCNTs may alter microbial community composition. Our results may serve as foundation for scientific guideline on regulating the discharge of nanomaterials such as SWCNTs to the soil ecosystem.
AB - Recent developments in nanotechnology may lead to the release of nanomaterials into the natural environment, such as soils, with largely unknown consequences. We investigated the effects of single-walled carbon nanotubes (SWCNTs), one of the most widely used nanomaterials, on soil microbial communities by incubation of soils to which powder or suspended forms of SWCNTs were added (0.03 to 1mgg-1 soil). To determine changes in soil microbial community composition, phospholipid fatty acid (PLFA) profiles were analyzed at 25th day of the incubation experiment. The biomass of major microbial groups including Gram-positive and Gram-negative bacteria, and fungi showed a significant negative relationship with SWCNT concentration, while the relative abundance of bacteria showed a positive relationship with SWCNT concentration. Furthermore, soils under distinct concentrations of SWCNT treatments had PLFA profiles that were significantly different from one another. Our results indicate that the biomass of a broad range of soil microbial groups is negatively related with SWCNT concentration and upon entry into soils, SWCNTs may alter microbial community composition. Our results may serve as foundation for scientific guideline on regulating the discharge of nanomaterials such as SWCNTs to the soil ecosystem.
KW - Bacteria
KW - Fungi
KW - Nanomaterial
KW - Phospholipid fatty acid (PLFA)
KW - Soil incubation
KW - Soil microorganism
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UR - http://www.scopus.com/inward/citedby.url?scp=84882640043&partnerID=8YFLogxK
U2 - 10.1016/j.scitotenv.2013.07.035
DO - 10.1016/j.scitotenv.2013.07.035
M3 - Article
C2 - 23933455
AN - SCOPUS:84882640043
VL - 466-467
SP - 533
EP - 538
JO - Science of the Total Environment
JF - Science of the Total Environment
SN - 0048-9697
ER -