Details zur Publikation

Kategorie Textpublikation
Referenztyp Zeitschriften
DOI 10.1038/35046063
Volltext Shareable Link
Titel (primär) Bacterial dehalorespiration with chlorinated benzenes
Autor Adrian, L.; Szewzyk, U.; Wecke, J.; Görisch, H.
Journal / Serie Nature
Erscheinungsjahr 2000
Department ISOBIO
Band/Volume 408
Heft 6812
Seite von 580
Seite bis 583
Sprache englisch
Abstract Chlorobenzenes are toxic, highly persistent and ubiquitously distributed environmental contaminants that accumulate in the food chain(1). The only known microbial transformation of 1,2,3,5-tetrachlorobenzene (TeCB) and higher chlorinated benzenes is the reductive dechlorination to lower chlorinated benzenes under anaerobic conditions observed with mixed bacterial cultures(2-4). The lower chlorinated benzenes can subsequently be mineralized by aerobic bacteria. Here we describe the isolation of the oxygen-sensitive strain CBDB1, a pure culture capable of reductive dechlorination of chlorobenzenes. Strain CBDB1 is a highly specialized bacterium that stoichiometrically dechlorinates 1,2,3-trichlorobenzene (TCB), 1,2,4-TCB, 1,2,3,4-TeCB, 1,2,3,5-TeCB and 1,2,4,5-TeCB to dichlorobenzenes or 1,3,5-TCB. The presence of chlorobenzene as an electron acceptor and hydrogen as an electron donor is essential for growth, and indicates that strain CBDB1 meets its energy needs by a dehalorespiratory process. According to their 16S rRNA gene sequences, strain CBDB1, Dehalococcoides ethenogenes(5) and several uncultivated bacteria forma new bacterial cluster, of which strain CBDB1 is the first, so far, to thrive on a purely synthetic medium.
dauerhafte UFZ-Verlinkung
Adrian, L., Szewzyk, U., Wecke, J., Görisch, H. (2000):
Bacterial dehalorespiration with chlorinated benzenes
Nature 408 (6812), 580 - 583