Some hydrocarbon-degrading bacterial strains were isolated from the oil-contaminated mangrove soil on Qi-ao Island of Zhuhai City through selective enriched culture. There were three strains (named Z1, Z2 and Z3) being able to grow with hexadecane as sole carbon and energy resources. After 5 days culture, the degradation rates of Z1, Z2 and Z3 were 63.4%, 82.5% and 78.3%, respectively. The morphological and physiological-biochemical identification, 16S rDNA sequence analysis, and phylogenetic study showed that the strain Z2 belonged to genus Acinetobacter.
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