| Abstract: | The strain Streptomyces rochei 303 (VKM Ac-1284D) is capable of utilizing 2-chloro-,2,4-,2,6-dichloro- and 2,4,6-trichlorophenols as the sole source of carbon. Its resting cells completely dechlorinated and degraded 2-, 3-chloro-; 2,4-, 2,6-, 2,3-, 2,5-, 3,4-, 3,5-dichloro-; 2,4-, 2,6-dibromo-; 2,4,6-, 2,4,5-, 2,3,4-, 2,3,5-, 2,3,6-trichlorophenols; 2,3,5,6-tetrachloro- and pentachlorophenol. During chlorophenol degradation, a stoichiometric amount of chloride ions was released and chlorohydroquinols were formed as intermediates. In cell-free extracts of S. rochei, the activity of hydroxyquinol 1,2-dioxygenase was found. The enzyme was induced with chlorophenols. Of all so far described strains degrading polychlorophenols, S. rochei 303 utilized a wider range of chlorinated phenols as the sole sourse of carbon and energy.Abbreviations CP
chlorophenol
- DCP
dichlorophenol
- TCP
trichlorophenol
- TeCP
tetrachlorophenol
- PCP
pentachlorophenol
- DBrP
dibromophenol
- CHQ
chlorohydroquinol
- DCHQ
dichlorohydroquinol
- HHQ
hydroxyhydroquinol
- CHHQ
chlorohydroxyhydroquinol
- CC
chlorocatechol
- TLC
thin layer chromatography
- GC/MC
chromato-mass-spectrometry
- HPLC
high-performance liquid chromatography |
