| Autor: |
H, Harms, H, Wilkes, V, Sinnwell, R M, Wittich, K, Figge, W, Francke, P, Fortnagel |
| Rok vydání: |
1991 |
| Předmět: |
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| Zdroj: |
FEMS microbiology letters. 65(1) |
| ISSN: |
0378-1097 |
| Popis: |
The dibenzofuran-degrading bacterial strain Pseudomonas sp. HH69 showed high oxidative activity towards 3-chlorodibenzofuran (3CDF). During the co-metabolic turnover of 3CDF large amounts of 4-chlorosalicylate and temporarily small amounts of salicylate were excreted. Simultaneously a yellow colour appeared due to the excretion of two polar products. Conversion of 3CDF by a mutant, derived from Pseudomonas sp. HH69 and defective in 2,3-dihydroxybiphenyl-1,2-dioxygenase led to the formation of equal quantities of 4'-chloro-2,2',3-trihydroxybiphenyl (4'CTHBP) and 4-chloro-2,2',3-trihydroxybiphenyl (4CTHBP). Crude extracts of the wild type transformed 4'CTHBP to 4-chlorosalicylate, whilst 4CTHBP was transformed to salicylate. Hence, we propose a non-selective initial attack on both aromatic rings of 3CDF and a degradative pathway for the resulting chlorotrihydroxybiphenyls. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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