Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1007/s10532-018-9838-9
Volltext Shareable Link
Titel (primär) Anaerobic biotransformation of hexachlorocyclohexane isomers by Dehalococcoides species and an enrichment culture
Autor Bashir, S.; Kuntze, K.; Vogt, C.; Nijenhuis, I.
Quelle Biodegradation
Erscheinungsjahr 2018
Department ISOBIO
Band/Volume 29
Heft 4
Seite von 409
Seite bis 418
Sprache englisch
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.
dauerhafte UFZ-Verlinkung 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 10.1007/s10532-018-9838-9