Open AccessEnrichment of dibenzofuran utilizing bacteria with high co‐metabolic potential towards dibenzodioxin and other anellated aromatics
Author(s) -
Strubel V.,
Rast H.G.,
Knackmuss H.J.,
Engesser K.H.
Publication year - 1989
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1989.tb03050.x
Subject(s) - dibenzofuran , bacteria , chemistry , environmental chemistry , biology , organic chemistry , genetics
Dibenzofuran degrading bacteria were enriched from various environmental sources. A mutualistic mixed culture of strain DPO 220 and strain DPO 230 was characterized. Strain DPO 220 alone showed limited growth with dibenzofuran as sole source of carbon and energy (td ≥ 4.5 h). A labile degradation product, C 12 H 10 O 5 , and salicylate were isolated from the culture fluid. Salicylate was found to be a central intermediate of DBF‐degradation. Strain DPO 220 co‐metabolized a wide range of anellated aromatics as well as heteroaromatics. High rates of co‐oxidation of dibenzodioxin demonstrate analogue‐enrichment to be a powerful technique for selecting enzymatic activities for otherwise non‐degradable substrates.