67764 artpubuab driver oai:ddd.uab.cat:67764 doi 10.1021/es0622958 eng Marco-Urrea, Ernest Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambiental (ICTA) Universitat Autònoma de Barcelona. Departament d’Enginyeria Química (EQ) Novel aerobic perchloroethylene degradation by the White-Rot Fungus trametes versicolor Premi a l'excel·lència investigadora. Àmbit de les Ciències Tecnològiques. 2008 Perchloroethylene (PCE) is one of the most important groundwater pollutants around the world. It is a suspected carcinogen and is believed to be rather recalcitrant to microbial degradation. We report here, for the first time, aerobic degradation of PCE by the white rot fungus, Trametes versicolor, to less hazardous products. Aerobic degradation rate of PCE was 2.04 to 2.75 × 10-4 μmol h-1 mg dry weight of fungal biomass. Trichloroacetyl chloride (TCAC) was identified as the main intermediate using [2-13C]PCE as the substrate. Chloride release was stoichiometric with PCE degradation. Re-oxygenation of the cultures resulted in increased PCE degradation as well as a corresponding increase in chloride release. These results suggest that better degradation rates can be achieved by appropriate optimization of culture conditions. Additionally, our studies using 1-aminobenzotriazole (ABT), an inhibitor of cytochrome P-450, suggested that cytochrome P-450 system is involved in PCE degradation by T. versicolor. These results are of particular interest Tots els drets reservats http://www.europeana.eu/rights/rr-f/ Article de fons PREI 2008 info:eu-repo/semantics/article info:eu-repo/semantics/acceptdVersion Gabarrell i Durany, Xavier Universitat Autònoma de Barcelona. Departament d’Enginyeria Química (EQ) Universitat Autònoma de Barcelona. Institut de Ciència i Tecnologia Ambiental (ICTA) Vol. 40, Núm. (2006), p. 7796-7802 Environmental Science & Technology (ACS Publications) 0013-936X 7 233901 http://ddd.uab.cat/pub/artpub/2006/67764/PREI2008_envscitec.pdf Post-print 7796 7802 40 v40 2006 ARTPUB PREI UAB file 0 MD5 bd5aa7c198469ed040ba81504fdd6bb8 437460 bytestream 1.5 filepath pub/artpub/2006/67764/PREI2008_envscitec.pdf disk