鞘氨醇单胞菌菌株2mpII对菲、甲基菲和二苯并噻吩的降解作用
Degradation of phenanthrene, methylphenanthrenes and dibenzothiophene by a Sphingomonas strain 2mpII.
作者信息
Nadalig T, Raymond N, Gilewicz M, Budzinski H, Bertrand J C
机构信息
Laboratoire Direction des Recherches Océaniques, Environnement Profond, Centre IFREMER de BREST, B.P. 70, 29280 Plouzané, France.
出版信息
Appl Microbiol Biotechnol. 2002 Jun;59(1):79-85. doi: 10.1007/s00253-002-0960-5. Epub 2002 Apr 12.
Strain Sphingomonassp. (2MPII), isolated from marine sediment, was able to utilize phenanthrene (P) or 2-methylphenanthrene (2MP) as the sole carbon source. However, 9-methylphenanthrene (9MP) and dibenzothiophene (DBT) were weakly degraded. The degradation rates of 9MP and DBT increased in the presence of 2MP, whilst the degradation rate of 2MP increased in the presence of 9MP. However, the presence of DBT inhibited the degradation of 2MP. DBT sulfone, a DBT metabolite, was not assimilated by the bacteria and its presence also decreased the degradation rate of 2MP.
从海洋沉积物中分离出的鞘氨醇单胞菌属菌株（2MPII）能够利用菲（P）或2-甲基菲（2MP）作为唯一碳源。然而，9-甲基菲（9MP）和二苯并噻吩（DBT）的降解能力较弱。在2MP存在的情况下，9MP和DBT的降解率增加，而在9MP存在的情况下，2MP的降解率增加。然而，DBT的存在抑制了2MP的降解。DBT的代谢产物DBT砜不能被该细菌同化，其存在也降低了2MP的降解率。
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