Metabolism of different PCB congeners in plant cell cultures
Journal Article
·
· Environmental Toxicology and Chemistry
- Bundesforschungsanstalt fuer Landwirtschaft, Braunschweig (Germany). Inst. fuer Pflanzenernaehrung und Bodenkunde
The metabolism of 10 different congeners of polychlorinated biphenyls (PCBs) was tested in cell cultures of 12 different plant species. The rate of metabolism was determined through comparison with cells inactivated by treatment with perchloric acid. The metabolism of defined PCB congeners was strongly dependent on the plant species. In particular, two Fabaceae species exhibited high capacities for metabolizing different congeners. Except for PCB 15 (4,4{prime}-dichlorobiphenyl), it was show that a lower chlorination grade is associated with higher metabolism rates. Also, it was shown that substitution and molecular configuration play an important role in the metabolism of PCBs in plants. In studies with {sup 14}C-PCB 1(2-chlorobiphenyl) in soybean cultures, one dihydroxylated and six different monohydroxylated compounds were detected after acid hydrolysis of polar metabolites (conjugates). Hydrolysis of metabolites of {sup 14}C-PCB 52 (2,2{prime}, 5,5{prime}-tetrachlorobiphenyl) in wheat cell cultures yielded four monohydroxylated and three dihydroxylated metabolites.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 162948
- Journal Information:
- Environmental Toxicology and Chemistry, Journal Name: Environmental Toxicology and Chemistry Journal Issue: 12 Vol. 14; ISSN 0730-7268; ISSN ETOCDK
- Country of Publication:
- United States
- Language:
- English
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