Document Detail

Enrichment of hexachlorobenzene and 1,3,5-trichlorobenzene transforming bacteria from sediments in Germany and Vietnam.
MedLine Citation:
PMID:  23197003     Owner:  NLM     Status:  Publisher    
Bacterial cultures were enriched from sediments in Germany and Vietnam reductively dechlorinating hexachlorobenzene and the highly persistent 1,3,5-trichlorobenzene to monochlorobenzene. The main products of the reductive dechlorination of hexachlorobenzene were monochlorobenzene and dichlorobenzenes (1,2-; 1,3- and 1,4-dichlorobenzene) while no trichlorobenzenes accumulated. For the reductive dechlorination of 1,3,5-trichlorobenzene with the mixed culture from Vietnam sediment, 1,3- dichlorobenzene and monochlorobenzene were produced as intermediate and final end-product, respectively. The pattern of dechlorination did not change when the cultures were repeatedly exposed to oxygen over seven transfers demonstrating oxygen tolerance of the dechlorinating bacteria. However, reductive dechlorination of 1,3,5-trichlorobenzene was inhibited by vancomycin at a concentration of 5 mg L(-1). Vancomycin delayed reductive dechlorination of hexachlorobenzene in mixed cultures by about 6 months. When repeatedly applied, vancomycin completely abolished the ability of the mixed culture to transform hexachlorobenzene. Sensitivity to vancomycin and insensitivity to brief exposure of oxygen indicates that the dechlorinating bacteria in the mixed cultures did not belong to the genus Dehalococcoides.
Tran Hoa Duan; Lorenz Adrian
Related Documents :
23458773 - Beneficial effect of melatonin on blastocyst in vitro production from heat-stressed bov...
24062013 - Comprehensive hormone profiling of the developing seeds of four grain legumes.
8229673 - Investigations of the oxygen supply in ca-alginate beads and microcapsules loaded with ...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-30
Journal Detail:
Title:  Biodegradation     Volume:  -     ISSN:  1572-9729     ISO Abbreviation:  Biodegradation     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9100834     Medline TA:  Biodegradation     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Department of Isotope Biogeochemistry, Helmholtz Centre for Environmental Research-UFZ, 04318, Leipzig, Germany.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Neurocognitive profiles of people with borderline personality disorder.
Next Document:  Image Cytometric HER2 in Gastric Carcinoma: Is a New Algorithm Needed?