Publication Details

Reference Category Journals
DOI / URL link
Document Shareable Link
Title (Primary) Anaerobic biotransformation of hexachlorocyclohexane isomers by Dehalococcoides species and an enrichment culture
Author Bashir, S.; Kuntze, K.; Vogt, C.; Nijenhuis, I.;
Journal Biodegradation
Year 2018
Department ISOBIO;
Volume 29
Issue 4
Language englisch;
POF III (all) T41;
Supplements https://static-content.springer.com/esm/art%3A10.1007%2Fs10532-018-9838-9/MediaObjects/10532_2018_9838_MOESM1_ESM.pdf
Keywords Biotransformation; Benzene; Stable isotope fractionation; Hexachlorocyclohexane; Lindane; Dehalococcoides mccartyi
Abstract The biotransformation of hexachlorocyclohexane isomers (HCH) by two Dehalococcoides mccartyi strains (195 and BTF08) and an enrichment culture was investigated and compared to conversion by the obligate anaerobic strain Clostridium pasteurianum strain DSMZ 525. The D. mccartyi strains preferentially transformed γ-HCH over α-HCH and δ-HCH isomers while β-HCH biotransformation was not significant. In case of the enrichment culture, γ-HCH was preferentially transformed over the δ-HCH, β-HCH and α-HCH isomers. Major observed metabolites in both cases were tetrachlorocyclohexene and as end products monochlorobenzene (MCB) and benzene. Dechlorination of the γ-HCH isomer was linked to an increase in cell numbers for strain 195. γ-HCH transformation was linked to considerable carbon stable isotope fractionation with the enrichment factor εc = − 5.5 ± 0.8‰ for D. mccartyi strain 195, εc = − 3.1 ± 0.4‰ for the enrichment culture and εc = − 4.1 ± 0.6‰ for co-metabolic transformation by C. pasteurianum.
ID 20468
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=20468
Bashir, S., Kuntze, K., Vogt, C., Nijenhuis, I. (2018):
Anaerobic biotransformation of hexachlorocyclohexane isomers by Dehalococcoides species and an enrichment culture
Biodegradation 29 (4), 409 - 418