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cje ›› 2005, Vol. ›› Issue (7): 845-847.

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Indicative function of dioxygenase activities on the degradation of phenanthrene by bacteria

XU Huaxia1, LI Peijun1, GONG Zongqiang1, LIU Wan1, ZHONG Ming2, CHEN Suhua 1   

  1. 1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
    2. Shenyang Agricultural University, Shenyang 110161, China
  • Received:2004-10-24 Revised:2004-12-16 Online:2005-07-10

Abstract: Experiments on degradation of phenanthrene by two species of petroleum-degrading bacteria and the change of dioxygenase activities were carried out.The results indicated that when the phenanthrene concentration was 100 mg稬-1, phenanthrenee degradation was the highest.When the phenanthrene concentration was higher than 100 mg稬-1,the degradation decreased.There was a significant correlation between phenanthrene degradation and dioxygenase activities when the phenanthrene concentration ranged from 50 to 250 mg稬-1.The dioxygenase activities could be used as an effective assessment index of phenanthrene degradation process and intensity.

Key words: Soybean, Faba bean, Root system, Configuration parameter, Spatial distribution

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