Abstract
Marine environment is a dynamic habitat for survival of many microbes with unique metabolic potential. Biofilm formation benefits the marine bacteria to thrive and persist even in hostile environments. Besides, biofilm formation ability of bacteria enhances the efficiency of bioremediation of organic pollutants. In the present study, biofilm forming and polycyclic aromatic hydrocarbon (phenanthrene and pyrene) degrading bacteria were isolated and taxonomic identification was carried out by 16S rRNA gene sequencing. The isolates were able to grow on multiple aromatic hydrocarbons such as toluene, biphenyl, anthracene and naphthalene. The potential isolates were characterized by 16S rRNA gene sequencing. The isolates were identified and belong to the genera Pseudomonas, Stenotrophomonas, Paenibacillus, Alcaligenes, Sporosarcina and Lysinibacillus. Proteobacteria were found to be leading bacterial group at the pollutant sites. 75% of the isolates screened were able to establish biofilm and grow on either of aromatic hydrocarbon. This study shows the dominance of biofilm forming bacteria with ability to grow on multiple organic compounds in the marine environment.
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