ArticleEnvironmental science and pollution research international2012
Natural attenuation is enhanced in previously contaminated and coniferous forest soils.
Article in Environmental science and pollution research international, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 28 citations in OpenAlex.
- Bioremediation of contaminated soil and groundwater byFrontiers in microbiology · 2023Review
- In situ bioremediation of Fenton's reaction-treated oil spill site, with a soil inoculum, slow release additives, and methyl-β-cyclodextrin.Environmental science and pollution research international · 2021Article
- Lead and cadmium contamination and exposure risk assessment via consumption of vegetables grown in agricultural soils of five-selected regions of Pakistan.Chemosphere · 2017Article
- The abundance of health-associated bacteria is altered in PAH polluted soils-Implications for health in urban areas?PloS one · 2017Article
- Potential of the microbial community present in an unimpacted beach sediment to remediate petroleum hydrocarbons.Environmental science and pollution research international · 2013Article
- Layer of organic pine forest soil on top of chlorophenol-contaminated mineral soil enhances contaminant degradation.Environmental science and pollution research international · 2013Article
- Alkane biodegradation genes from chronically polluted subantarctic coastal sediments and their shifts in response to oil exposure.Microbial ecology · 2012Article
- Parallel changes in the taxonomical structure of bacterial communities exposed to a similar environmental disturbance.Ecology and evolution · 2011Article
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposePrevalence of organic pollutants or their natural analogs in soil is often assumed to lead to adaptation in the bacterial community, which results in enhanced bioremediation if the soil is later contaminated. In this study, the effects of soil type and contamination history on diesel oil degradation and bacterial adaptation were studied.
methodsMesocosms of mineral and organic forest soil (humus) were artificially treated with diesel oil, and oil hydrocarbon concentrations (GC-FID), bacterial community composition (denaturing gradient gel electrophoresis, DGGE), and oil hydrocarbon degraders (DGGE + sequencing of 16S rRNA genes) were monitored for 20 weeks at 16°C.
resultsDegradation was advanced in previously contaminated soils as compared with pristine soils and in coniferous organic forest soil as compared with mineral soil. Contamination affected bacterial community composition especially in the pristine mineral soil, where diesel addition increased the number of strong bands in the DGGE gel. Sequencing of cloned 16S rRNA gene fragments and DGGE bands showed that potential oil-degrading bacteria were found in mineral and organic soils and in both pristine and previously contaminated mesocosms. Fast oil degradation was not associated with the presence of any particular bacterial strain in soil.
conclusionsWe demonstrate at the mesocosm scale that previously contaminated and coniferous organic soils are superior environments for fast oil degradation as compared with pristine and mineral soil environments. These results may be utilized in preventing soil pollution and planning soil remediation.
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