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Diversity of Culturable Hydrocarbons-Degrading Bacteria in Petroleum-Contaminated Saltern
Abstract:
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 genera Achromobacter, Rhodococcus, Mycobacteriumi, Dietzia, Sphingobium, Pseudomonas, Ochrobactrum, Bacillu, Rhizobium, Halomonas, Idiomarina, Chromohalobacter and Marinobacter. Hydrocarbon-degrading activity of Achromobacter pulmonis, Bacillus persicus, Rhizobium helanshanense, Halomonas xianhensis and Idiomarina loihiensis in petroleum-contaminated saltern was reported for the first time.
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29-32
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August 2014
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© 2014 Trans Tech Publications Ltd. All Rights Reserved
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