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Environ Pollut

Title:		Biogenic volatile organic compounds as a potential stimulator for organic contaminant degradation by soil microorganisms
Author(s):		McLoughlin E; Rhodes AH; Owen SM; Semple KT;
Address:		"Department of Environmental Science, Lancaster Environment Centre, Lancaster University, Lancaster LA1 4YQ, UK"
Journal Title:		Environ Pollut
Year:		2009
Volume:		20080925
Issue:		1
Page Number:		86 - 94
DOI:		10.1016/j.envpol.2008.07.029
ISSN/ISBN:		1873-6424 (Electronic) 0269-7491 (Linking)
Abstract:		"The effects of monoterpenes on the degradation of (14)C-2,4-dichlorophenol (DCP) were investigated in soils collected from areas surrounding monoterpene and non-monoterpene-emitting vegetation. Indigenous microorganisms degraded (14)C-2,4-DCP to (14)CO(2), after 1d contact time. Degradation was enhanced by prior exposure of the soils to 2,4-DCP for 32 d, increasing extents of mineralisation up to 60%. Monoterpene amendments further enhanced 2,4-DCP degradation, but only following pre-exposure to both 2,4-DCP and monoterpene, with total 2,4-DCP mineralisation extents of up to 71%. Degradation was greatest at the higher monoterpene concentrations (> or = 1 microg kg(-1)). Total mineralisation extents were similar between concentrations, but higher than the control and the 0.1 microg kg(-1) amendment, indicating that increases in monoterpene concentration has a diminishing enhancing effect. We suggest that monoterpenes can stimulate the biodegradation of 2,4-DCP by indigenous soil microorganisms and that monoterpene amendment in soils is an effective strategy for removing organic contaminants"
Keywords:		"Biodegradation, Environmental Biomass Carbon Radioisotopes Catalysis Chlorophenols/*metabolism Ecology/methods Environmental Restoration and Remediation/*methods Lolium/metabolism Monoterpenes/*pharmacology Poaceae/metabolism *Soil Microbiology Soil Pollu;"
Notes:		"MedlineMcLoughlin, Emma Rhodes, Angela H Owen, Susan M Semple, Kirk T eng Research Support, Non-U.S. Gov't England 2008/09/30 Environ Pollut. 2009 Jan; 157(1):86-94. doi: 10.1016/j.envpol.2008.07.029. Epub 2008 Sep 25"