一株新分离的红球菌对苯并噻吩和二苯并噻吩的生物脱硫作用
Biodesulfurization of benzothiophene and dibenzothiophene by a newly isolated Rhodococcus strain.
作者信息
Tanaka Y, Matsui T, Konishi J, Maruhashi K, Kurane R
机构信息
Microbial Community Analysis and Application Research Group, Research Institute of Biological Resources, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
出版信息
Appl Microbiol Biotechnol. 2002 Jul;59(2-3):325-8. doi: 10.1007/s00253-002-0985-9. Epub 2002 Apr 12.
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.
红球菌属KT462菌株能够以苯并噻吩（BT）或二苯并噻吩（DBT）作为唯一硫源生长，该菌株是新分离并鉴定的。气相色谱（GC）和气相色谱 - 质谱联用（GC-MS）分析表明，KT462菌株具有与已报道的芽孢杆菌属A11 - 2菌株和中华根瘤菌属KT55菌株相同的BT脱硫途径。该菌株以及其他DBT脱硫细菌（如红平红球菌KA2 - 5 - 1和红平红球菌IGTS8）产生的DBT脱硫产物均为2 - 羟基联苯。静息细胞研究表明，该菌株还能够降解BT和DBT的各种烷基衍生物。
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