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Abstract
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Petroleum-degrading bacteria were isolated from polluted sites in Kharg Island, which is one of the most important ports for oil export in Iran. Both biochemical tests and 16S rRNA were applied to identify the strains. Experiments were performed in a mineral salt medium containing 2% of crude oil as the sole carbon. The results illustrated that the strains were: Brevibacillus sp., Microbacterium oxydans, Staphylococcus arlettae, Staphylococcus warneri, Methylobacterium persicinum, and Achromobacter xylosoxidans. Growth rates of these strains by its optical densities at the wavelength of 600 illustrated that Pseudomonas sp. (accession no. KC771232) had the highest growth rate (OD600 0.8).
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