1. Potential use of the oligochaete Limnodrilus profundicola V., as a bioindicator of contaminant exposure
- Author
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Adile Ozdemir, Alaattin Sen, and Mustafa Duran
- Subjects
methomyl ,Water samples ,Insecticides ,Turkey ,Organoplatinum Compounds ,Health, Toxicology and Mutagenesis ,environmental exposure ,Methomyl ,Aromatic hydrocarbons ,Fresh Water ,Methyl Parathion ,Toxicology ,Turkey (republic) ,chemistry.chemical_compound ,Model substrates ,biochemical composition ,water sampling ,Pyrethrins ,Bioindicator species ,acetylthiocholine ,Cholinesterases ,Polycyclic Aromatic Hydrocarbons ,enzyme inhibition ,media_common ,Platinum compounds ,butyrylthiocholine ,water pollution ,ethoxyresorufin deethylase ,integumentary system ,Freshwater oligochaetes ,choline derivative ,article ,General Medicine ,biological marker ,Pollution ,Polychlorinated Biphenyls ,Polycyclic aromatic hydrocarbons ,inhibition ,unclassified drug ,enzyme activity ,streamwater ,Polycyclic Hydrocarbons, Aromatic ,Oil-contaminated sediments ,priority journal ,Environmental chemistry ,Toxicity ,biomarker ,annelid worm ,Biological Markers ,Environmental Monitoring ,sampling ,cholinesterase ,media_common.quotation_subject ,substrate ,Management, Monitoring, Policy and Law ,Biology ,Limnodrilus profundicola ,propionylthiocholine ,Anoxic sediments ,In-vivo ,Nitriles ,Cytochrome P-450 CYP1A1 ,Ecotoxicology ,bioindicator ,Animals ,Oligochaeta ,Contaminant exposure ,Pollutant ,EROD activity ,parathion methyl ,nonhuman ,Ethoxyresorufin-O-deethylase ,insecticide ,pollution exposure ,deltamethrin ,PAH ,Biochemical tools ,Deltamethrin ,chemistry ,sediment ,Acetylthiocholine ,annelid ,Bioindicator ,Biomarkers ,Water Pollutants, Chemical - Abstract
Cholinesterase (ChE) and ethoxyresorufin-O-deethylase (EROD) were of special interest to this study as these biochemical tools have been widely used for the determination of exposure to pollutants. In this study, the freshwater oligochaete Limnodrilus profundicola was tested for its potential as a bioindicator of freshwater pollution. For this purpose, the ChE and EROD activities of L. profundicola and the level of polycyclic aromatic hydrocarbons (PAH) of water samples collected from different sites along the Curuksu stream on the Menderes River (the ancient Meander) running through south-western Turkey were studied. First, these activities were characterized using, as model substrates, acetylthiocholine (ATC), propionylthiocholine (PTC), and butyrylthiocholine (BTC). Then, the in vivo effects of insecticides and pollutants on these activities were investigated. L. profundicola were exposed to various doses of methyl-parathion, methomyl, and deltamethrin. Although significant inhibition of ChE was detected with each of the insecticides, the highest level of inhibition was observed with methyl-parathion. In addition to the inhibition of ChE, the activity of EROD was induced by exposure to oil-contaminated sediments. Thus, although L. profundicola has a reputation for being very resistant to pollution (although it is not insensitive to it), we demonstrated that it may potentially be used as a bioindicator species for contaminant exposure when ChE and EROD are used as biomarkers. © 2010 Wiley Periodicals, Inc.
- Published
- 2010