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Research Article Open access CC BY 4.0

Isolation and Identification of Anthracene Utilizing Proteus vulgaris from Oil Spill Contaminated Soil at NNPC Depot Kano State Nigeria

U. Shehu, F. A. Ahmad, F. Yusuf, F. Muhammad, H. M. Yakasai

Journal of Advances in Biology & Biotechnology · pp. 46–53 · Published 14 Dec 2021

10.9734/jabb/2021/v24i1030246

Abstract

Microbial biodegradation of polycyclic aromatic hydrocarbons (PAHs) like Anthracene, represent an efficient, time, and cost-effective way for bioremediation of the polluted environment. This study was aimed at isolating, identifying and characterizing bacteria with potential to degrade and utilize anthracene as a sole carbon source. A bacteria was isolated from oil spilled contaminated site located in Kano, using an enrichment method on mineral salt media (MSM) following serial dilution (10-1-10-6). Characterization was done by studying the effects of temperature and pH on mineral salt media (MSM) containing anthracene. The isolate was then identified morphologically, biochemically and molecularly based on 16S rRNA partial gene sequence analysis. The morphological and microscopic examination of the isolate from this research shows that the isolate was creamy in color, motile, gram negative, short rod and non-spore forming respectively. The biochemical test of the isolate was found to be positive for these parameters (methyl red, catalase, motility, indole and urease) and negative for (citrate and oxidase). The 16S rRNA sequence and Phylogenetic analysis using neighbor joining tree and 1000 boos trap revealed that, the isolate was closely related (on the same clade) to Proteus vulgaris with accession number MW766369. Characterization was done by studying the effects of temperature and pH. The isolated bacterium was optimal at a temperature of 35ºC and pH 7.5. This isolate is a promising strain that could be used in bioremediation of polycylic aromatic hydrocarbons polluted environment.

Isolation characterization Proteus vulgaris anthracene oil spilled contaminated soil

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