title: Degradation of polychlorinated biphenyls in the rhizosphere of rape, Brassica napus L.
abstract: The objective of this study was to investigate the rhizosphere effect of rape plants on polychlorinated biphenyls (PCB) dissipation in soils spiked with seven indicator congeners. Depletion of PCB in the rhizosphere was significantly higher in the soil with lower organic matter content. While in the Chernozem soil, 87% of PCB related to bulk soil were found in the 1st mm from roots, only 62%-69% were found in the Fluvisol soil with no significant influence of increased initial PCB concentration. Further from the roots, the concentration of lower chlorinated congeners decreased, which indicates their greater biodegradation in comparison with more chlorinated ones.
authors.affiliation: Department of Agro-Environmental Chemistry and Plant Nutrition, Czech University of Life Sciences Prague, Kamýcká 129, 16521, Prague 6-Suchdol, Czech Republic. javorska@af.czu.cz
authors.forename: Hana
authors.initials: H
authors.lastname: Javorská
authors.forename: Pavel
authors.initials: P
authors.lastname: Tlustos
authors.forename: Regina
authors.initials: R
authors.lastname: Kaliszová
mesh_terms: D001673:Biodegradation, Environmental; D029688:Brassica napus / Q000378:metabolism*; D018517:Plant Roots / Q000378:metabolism*; D011078:Polychlorinated Biphenyls / Q000378:metabolism*; D012987:Soil / Q000032:analysis*; D012989:Soil Pollutants / Q000378:metabolism*
chemical_list: D012987:Soil; D012989:Soil Pollutants; D011078:Polychlorinated Biphenyls