Popis: |
Microbial degradation of hydrocarbon in contaminated salterns has attracted increasing attention. However, the diversity of hydrocarbons-degrading bacteria in such environments was still poorly understood. A total of 14 bacteria were isolated from a petroleum-contaminated saltern, which could grow in 3% NaCl. Especially, 2 isolates can survive in 20% NaCl. In addition, all isolates degraded petroleum. However, only 12, 8 and 3 isolates degraded phenanthrene, pyrene and n-Hexadecane, respectively. Phylogenetic analysis showed the isolates belonged to the generaAchromobacter,Rhodococcus,Mycobacteriumi,Dietzia,Sphingobium,Pseudomonas,Ochrobactrum,Bacillu,Rhizobium,Halomonas,Idiomarina,ChromohalobacterandMarinobacter. Hydrocarbon-degrading activity ofAchromobacter pulmonis,Bacillus persicus,Rhizobium helanshanense,Halomonas xianhensisandIdiomarina loihiensisin petroleum-contaminated saltern was reported for the first time. |