Advanced

Spatial covariation of microbial community composition and polycyclic aromatic hydrocarbon concentration in a creosote-polluted soil

Törneman, Niklas LU ; Yang, Xiuhong LU ; Bååth, Erland LU and Bengtsson, Göran LU (2008) In Environmental Toxicology and Chemistry 27(5). p.1039-1046
Abstract
Little is known about the spatial connection between soil microbial community composition and polycyclic aromatic hydrocarbon (PAH) concentration. A spatially explicit survey at a creosote-contaminated site demonstrated that microbial biomass (total concentration of phospholipid fatty acids [PLFAs]) and microbial community composition (PLFA fingerprints) were spatially autocorrelated, mostly within a distance of 25 m, and covaried with PAH concentrations. The concentration of PLFAs indicative of gram-negative bacteria (16:1 omega 7c, 16:1 omega 7t, 18:1 omega 7, cy17:0, and cy19:0) increased in the PAH hot spots, whereas PLFAs representing fungi and gram-positive bacteria (including actinomycetes) were negatively correlated to PAH... (More)
Little is known about the spatial connection between soil microbial community composition and polycyclic aromatic hydrocarbon (PAH) concentration. A spatially explicit survey at a creosote-contaminated site demonstrated that microbial biomass (total concentration of phospholipid fatty acids [PLFAs]) and microbial community composition (PLFA fingerprints) were spatially autocorrelated, mostly within a distance of 25 m, and covaried with PAH concentrations. The concentration of PLFAs indicative of gram-negative bacteria (16:1 omega 7c, 16:1 omega 7t, 18:1 omega 7, cy17:0, and cy19:0) increased in the PAH hot spots, whereas PLFAs representing fungi and gram-positive bacteria (including actinomycetes) were negatively correlated to PAH concentrations. Most PLFAs were spatially autocorrelated, with distances varying between 4 and 25 m. Those PLFAs that increased in PAH-contaminated soil had autocorrelation ranges between 4 and 16 m, whereas the fungal indicator PLEA 18:2 omega 6,9 had the largest autocorrelation range (25 in). Bacterial strains isolated using a spray-plate technique and with the same PLFA composition as that in contaminated soil samples were capable of degrading phenanthrene, fluoranthene, and pyrene, indicating that the main PAH degraders could be isolated. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
autocorrelation, aromatic hydrocarbon degraders, polycyclic, geostatistics, phospholipid fatty acids, heterogeneity
in
Environmental Toxicology and Chemistry
volume
27
issue
5
pages
1039 - 1046
publisher
SETAC and Alliance Communications Group
external identifiers
  • wos:000255063700004
  • scopus:43649105396
ISSN
0730-7268
DOI
10.1897/07-440.1
language
English
LU publication?
yes
id
76d93444-52bd-4e4a-9e48-97e8ab47fe24 (old id 1206430)
date added to LUP
2008-09-19 14:02:04
date last changed
2017-01-22 03:34:12
@article{76d93444-52bd-4e4a-9e48-97e8ab47fe24,
  abstract     = {Little is known about the spatial connection between soil microbial community composition and polycyclic aromatic hydrocarbon (PAH) concentration. A spatially explicit survey at a creosote-contaminated site demonstrated that microbial biomass (total concentration of phospholipid fatty acids [PLFAs]) and microbial community composition (PLFA fingerprints) were spatially autocorrelated, mostly within a distance of 25 m, and covaried with PAH concentrations. The concentration of PLFAs indicative of gram-negative bacteria (16:1 omega 7c, 16:1 omega 7t, 18:1 omega 7, cy17:0, and cy19:0) increased in the PAH hot spots, whereas PLFAs representing fungi and gram-positive bacteria (including actinomycetes) were negatively correlated to PAH concentrations. Most PLFAs were spatially autocorrelated, with distances varying between 4 and 25 m. Those PLFAs that increased in PAH-contaminated soil had autocorrelation ranges between 4 and 16 m, whereas the fungal indicator PLEA 18:2 omega 6,9 had the largest autocorrelation range (25 in). Bacterial strains isolated using a spray-plate technique and with the same PLFA composition as that in contaminated soil samples were capable of degrading phenanthrene, fluoranthene, and pyrene, indicating that the main PAH degraders could be isolated.},
  author       = {Törneman, Niklas and Yang, Xiuhong and Bååth, Erland and Bengtsson, Göran},
  issn         = {0730-7268},
  keyword      = {autocorrelation,aromatic hydrocarbon degraders,polycyclic,geostatistics,phospholipid fatty acids,heterogeneity},
  language     = {eng},
  number       = {5},
  pages        = {1039--1046},
  publisher    = {SETAC and Alliance Communications Group},
  series       = {Environmental Toxicology and Chemistry},
  title        = {Spatial covariation of microbial community composition and polycyclic aromatic hydrocarbon concentration in a creosote-polluted soil},
  url          = {http://dx.doi.org/10.1897/07-440.1},
  volume       = {27},
  year         = {2008},
}