Linking microbial community and catabolic gene structures during the adaptation of three contaminated soils under continuous long term pollutant stress.
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Pieper, Dietmar H
Vilchez Vargas, Ramiro
MetadataShow full item record
AbstractThree types of contaminated soil from three geographically different areas were subjected to a constant supply of benzene or benzene/toluene/ethylbenzene/xylenes for a period of 3 months. Different to the soil from Brazil (BRA) and Switzerland (SUI), the Czech Republic (CZE) soil which was previously subjected to intensive in-situ bioremediation displayed only negligible changes in community structure. BRA and SUI soil samples showed a clear succession of phylotypes. A rapid response to benzene stress was observed whereas the response to BTEX pollution was significantly slower. After extended incubation, actinobacterial phylotypes were increasing in relative abundance, indicating their superior fitness to pollution stress. Commonalities, but also differences in the phylotypes were observed. Catabolic gene surveys confirmed the enrichment of actinobacteria by identifying the increase of actinobacterial genes involved in the degradation of pollutants. Proteobacterial phylotypes were increasing in relative abundance in SUI microcosms after short-term stress with benzene, where catabolic gene surveys indicated metabolic routes enriched. Interestingly, CZE soil, despite staying constant in community structure, showed a change in the metabolic net, indicating that a highly adapted community has been enriched, which had to adapt its gene pool to meet novel challenges.
CitationLinking microbial community and catabolic gene structures during the adaptation of three contaminated soils under continuous long term pollutant stress. 2016: Appl. Environ. Microbiol.
AffiliationHelmholtz Centre for infection research, Inhoffenstr. 7, D-38124 Braunschweig, Germany.
The following license files are associated with this item:
- Microbial degradation of benzene, toluene, ethylbenzene and xylene isomers (BTEX) contaminated groundwater in Korea.
- Authors: Chang SW, La HJ, Lee SJ
- Issue date: 2001
- Temperature effects and substrate interactions during the aerobic biotransformation of BTEX mixtures by toluene-enriched consortia and Rhodococcus rhodochrous.
- Authors: Deeb RA, Alvarez-Cohen L
- Issue date: 1999 Mar 5
- Bioremediation of benzene, toluene, ethylbenzene, xylenes-contaminated soil: a biopile pilot experiment.
- Authors: Genovese M, Denaro R, Cappello S, Di Marco G, La Spada G, Giuliano L, Genovese L, Yakimov MM
- Issue date: 2008 Nov
- Phytoremediation of BTEX contaminated soil by Canna×generalis.
- Authors: Boonsaner M, Borrirukwisitsak S, Boonsaner A
- Issue date: 2011 Sep
- PCR-DGGE method to assess the diversity of BTEX mono-oxygenase genes at contaminated sites.
- Authors: Hendrickx B, Dejonghe W, Faber F, Boënne W, Bastiaens L, Verstraete W, Top EM, Springael D
- Issue date: 2006 Feb