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J Hazard Mater

Title:		"Characterization of methane, benzene and toluene-oxidizing consortia enriched from landfill and riparian wetland soils"
Author(s):		Lee EH; Park H; Cho KS;
Address:		"Department of Environmental Science and Engineering, Ewha Womans University, 11-1 Daehyun-dong, Seodaemun-gu, Seoul 120-750, Republic of Korea. Department of Environmental Science and Engineering, Ewha Womans University, 11-1 Daehyun-dong, Seodaemun-gu, Seoul 120-750, Republic of Korea. Electronic address: kscho@ewha.ac.kr"
Journal Title:		J Hazard Mater
Year:		2010
Volume:		20100818
Issue:		1-Mar
Page Number:		313 - 320
DOI:		10.1016/j.jhazmat.2010.08.038
ISSN/ISBN:		1873-3336 (Electronic) 0304-3894 (Linking)
Abstract:		"The microbial oxidations of methane (M) and volatile organic compounds (VOCs) were compared with those of M and VOCs alone after enriching soil samples with M and/or VOCs. Landfill cover and riparian wetland soils from which M and VOCs were simultaneously emitted were selected as representative samples. Benzene (B) and toluene (T) were employed as the model VOCs. With the landfill soil consortia, the rate of M oxidation decreased from 4.15-5.56 to 2.26-3.42 mumol g-dry soil(-1)h(-1) in the presence of both B and T, but with the wetland soil consortia the rate of M oxidation (3.09 mumol g-dry soil(-1)h(-1)) in the mixture of M as well as both B and T was similar to that of M alone (3.04 mumol g-dry soil(-1)h(-1)). Compared with the methanotrophic community with M alone, the portion of type II methanotrophs was greater in the landfill consortia; whereas, the proportion in wetland consortia was less in the presence of both B and T. The oxidations of B and T were stimulated by the presence of M with both the landfill and wetland consortia. There were no correlations between the oxidation rate of M and those of B and T with the gene copy numbers of pmoA and tmoA responsible for the oxidations"
Keywords:		"Base Sequence Benzene/*metabolism DNA Primers Methane/*metabolism Oxidation-Reduction Polymerase Chain Reaction Polymorphism, Restriction Fragment Length Soil Pollutants/*metabolism Toluene/*metabolism *Wetlands;"
Notes:		"MedlineLee, Eun-Hee Park, Hyunjung Cho, Kyung-Suk eng Research Support, Non-U.S. Gov't Netherlands 2010/09/14 J Hazard Mater. 2010 Dec 15; 184(1-3):313-320. doi: 10.1016/j.jhazmat.2010.08.038. Epub 2010 Aug 18"