Abstract
Rhodococcus sp. KT462, which can grow on either benzothiophene (BT) or dibenzothiophene (DBT) as the sole source of sulfur, was newly isolated and characterized. GC and GC-MS analyses revealed that strain KT462 has the same BT desulfurization pathway as that reported for Paenibacillus sp. A11-2 and Sinorhizobium sp. KT55. The desulfurized product of DBT produced by this strain, as well as other DBT-desulfurizing bacteria such as R. erythropolis KA2-5-1 and R. erythropolis IGTS8, was 2-hydroxybiphenyl. A resting cells study indicated that this strain was also able to degrade various alkyl derivatives of BT and DBT.
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