Characterization of successional changes in bacterial community composition during bioremediation of used motor oil-contaminated soil in a boreal climate

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Yan , L , Sinkko , H , Penttinen , P & Lindström , K 2016 , ' Characterization of successional changes in bacterial community composition during bioremediation of used motor oil-contaminated soil in a boreal climate ' , The Science of the Total Environment , vol. 542 , pp. 817-825 . https://doi.org/10.1016/j.scitotenv.2015.10.144

Title: Characterization of successional changes in bacterial community composition during bioremediation of used motor oil-contaminated soil in a boreal climate
Author: Yan, Lijuan; Sinkko, Hanna; Penttinen, Petri; Lindström, Kristina
Contributor: University of Helsinki, Environmental Sciences
University of Helsinki, Department of Food and Nutrition
University of Helsinki, Environmental Sciences
University of Helsinki, Environmental Sciences
Date: 2016-01-15
Language: eng
Number of pages: 9
Belongs to series: The Science of the Total Environment
ISSN: 0048-9697
URI: http://hdl.handle.net/10138/173361
Abstract: The widespread use of motor oil makes it a notable risk factor to cause scattered contamination in soil. The monitoring of microbial community dynamics can serve as a comprehensive tool to assess the ecological impact of contaminants and their disappearance in the ecosystem. Hence, a field study was conducted to monitor the ecological impact of used motor oil under different perennial cropping systems (fodder galega, brome grass, galega-brome grass mixture and bare fallow) in a boreal climate zone. Length heterogeneity PCR characterized a successional pattern in bacterial community following oil contamination over a four-year bioremediation period. Soil pH and electrical conductivity were associated with the shifts in bacterial community composition. Crops had no detectable effect on bacterial community composition or complexity. However, the legume fodder galega increased soil microbial biomass, expressed as soil total DNA. Oil contamination induced an abrupt change in bacterial community composition at the early stage, yet the effect did not last as long as the oil in soil. The successional variation in bacterial community composition can serve as a sensitive ecological indicator of oil contamination and remediation in situ. (C) 2015 Elsevier B.V. All rights reserved.
Subject: LH-PCR
Bioremediation
Bacterial community
Oil contamination
Soil
Fodder galega
Brome grass
RHIZOBIUM-GALEGAE SYSTEM
MICROBIAL COMMUNITIES
LENGTH HETEROGENEITY
REDUNDANCY ANALYSIS
DEGRADING BACTERIA
PERENNIAL GRASSES
SEASONAL-CHANGES
POLLUTED SOIL
GROWTH
PHYTOREMEDIATION
1172 Environmental sciences
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