PMID- 23921182
OWN - NLM
STAT- MEDLINE
DCOM- 20140603
LR  - 20131028
IS  - 1873-3336 (Electronic)
IS  - 0304-3894 (Linking)
VI  - 261
DP  - 2013 Oct 15
TI  - An evaluation of the impact of multiwalled carbon nanotubes on soil microbial 
      community structure and functioning.
PG  - 188-97
LID - S0304-3894(13)00510-4 [pii]
LID - 10.1016/j.jhazmat.2013.07.031 [doi]
AB  - This study evaluated the impacts of multiwalled carbon nanotubes (MWNTs) on 
      microbial community composition and functioning in a sandy loam soil over 90 d. 
      We used test concentrations in the range of lower MWNT concentrations (10mg/kg) 
      to extremely high MWNT concentrations (10,000 mg/kg) as a worst case scenario. We 
      observed no effects of MWNTs on soil respiration, enzymatic activities, and 
      microbial community composition at 10, 100 and 1,000 mg/kg. However, increases in 
      fungal fatty acid methyl ester markers were observed at the highest treatment. In 
      addition, pyrosequencing demonstrated a decreased abundance of some bacterial 
      genera like Derxia, Holophaga, Opitutus and Waddlia at the highest treatment 
      while bacterial genera that are considered potential degraders of recalcitrant 
      contaminants (such as polycyclic aromatic hydrocarbons) like Rhodococcus, 
      Cellulomonas, Nocardioides and Pseudomonas increased. These results suggest a 
      shift in soil microbial community composition to more tolerant microbial 
      populations in the presence of extremely high MWNT concentrations. It is unlikely 
      that the change observed at 10,000 mg/kg is due to metal or carbon impurities as 
      the MWNTs used in this study were of high purity. Given the need for wide-ranging 
      data for regulation and risk assessment of nanomaterials, this study provides 
      valuable data.
CI  - Copyright (c) 2013 Elsevier B.V. All rights reserved.
FAU - Shrestha, Babina
AU  - Shrestha B
AD  - Department of Environmental Toxicology, The Institute of Environmental and Human 
      Health (TIEHH), Texas Tech University, Lubbock, TX, USA.
FAU - Acosta-Martinez, Veronica
AU  - Acosta-Martinez V
FAU - Cox, Stephen B
AU  - Cox SB
FAU - Green, Micah J
AU  - Green MJ
FAU - Li, Shibin
AU  - Li S
FAU - Canas-Carrell, Jaclyn E
AU  - Canas-Carrell JE
LA  - eng
PT  - Journal Article
DEP - 20130722
PL  - Netherlands
TA  - J Hazard Mater
JT  - Journal of hazardous materials
JID - 9422688
RN  - 0 (DNA, Bacterial)
RN  - 0 (Fatty Acids)
RN  - 0 (Nanotubes, Carbon)
RN  - 0 (Soil Pollutants)
RN  - 142M471B3J (Carbon Dioxide)
RN  - EC 1.- (Oxidoreductases)
RN  - EC 3.1.3.2 (Acid Phosphatase)
RN  - EC 3.2.1.- (Hexosaminidases)
RN  - EC 3.2.1.21 (beta-Glucosidase)
SB  - IM
MH  - Acid Phosphatase/metabolism
MH  - Bacteria/classification/drug effects/genetics/metabolism
MH  - Carbon Dioxide/metabolism
MH  - DNA, Bacterial/genetics
MH  - Fatty Acids/metabolism
MH  - Fungi/drug effects/metabolism
MH  - Hexosaminidases/metabolism
MH  - Nanotubes, Carbon/*toxicity
MH  - Oxidoreductases/metabolism
MH  - Sequence Analysis, DNA
MH  - *Soil Microbiology
MH  - Soil Pollutants/*toxicity
MH  - beta-Glucosidase/metabolism
OTO - NOTNLM
OT  - MWNTs
OT  - Nanomaterials
OT  - Pyrosequencing
OT  - Risk assessment
OT  - Soil microbial community
EDAT- 2013/08/08 06:00
MHDA- 2014/06/04 06:00
CRDT- 2013/08/08 06:00
PHST- 2013/01/15 00:00 [received]
PHST- 2013/06/27 00:00 [revised]
PHST- 2013/07/13 00:00 [accepted]
PHST- 2013/08/08 06:00 [entrez]
PHST- 2013/08/08 06:00 [pubmed]
PHST- 2014/06/04 06:00 [medline]
AID - S0304-3894(13)00510-4 [pii]
AID - 10.1016/j.jhazmat.2013.07.031 [doi]
PST - ppublish
SO  - J Hazard Mater. 2013 Oct 15;261:188-97. doi: 10.1016/j.jhazmat.2013.07.031. Epub 
      2013 Jul 22.