<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Hydrocarbon constituents of petroleum are persistent, bioaccumulated, and bio-magnified in living tissues, transported to longer distances, and exert hazardous effects on human health and the ecosystem. Bioaugmentation with microorganisms like bacteria is an emerging approach that can mitigate the toxins from environmental sources. The present study was initiated to target the petroleum-contaminated soil of gasoline stations situated in Lahore. Petroleum degrading bacteria were isolated by serial dilution method followed by growth analysis, biochemical and molecular characterization, removal efficiency estimation, metabolites extraction, and GC-MS of the metabolites. Molecular analysis identified the bacterium as Bacillus cereus, which exhibited maximum growth at 72 hours and removed 75% petroleum. Biochemical characterization via the Remel RapID<sup>™</sup> ONE panel system showed positive results for arginine dehydrolase (ADH), ornithine decarboxylase (ODC), lysine decarboxylase (LDC), <italic>o</italic>-nitrophenyl-β-D-galactosidase (ONPG), <italic>p</italic>-nitrophenyl-β-D-glucosidase (βGLU), <italic>p</italic>-nitrophenyl-N-acetyl-β-D-glucosaminidase (NAG), malonate (MAL), adonitol fermentation (ADON), and tryptophane utilization (IND). GC-MS-based metabolic profiling identified alcohols (methyl alcohol, <italic>o</italic>-, <italic>p</italic>- and <italic>m</italic>-cresols, catechol, and 3-methyl catechol), aldehydes (methanone, acetaldehyde, and <italic>m</italic>-tolualdehyde), carboxylic acid (methanoic acid, <italic>cis,cis</italic>-muconic acid, cyclohexane carboxylic acid and benzoic acid), conjugate bases of carboxylic acids (benzoate, <italic>cis,cis</italic>-muconate, 4-hydroxybenzoate, and pyruvate) and cycloalkane (cyclohexene). It suggested the presence of methane, methylcyclohexane, toluene, xylene, and benzene degradation pathways in <italic>B. cereus</italic>.</p>
</abstract>

Hydrocarbon constituents of petroleum are persistent, bioaccumulated, and bio-magnified in living tissues, transported to longer distances, and exert hazardous effects on human health and the ecosystem. Bioaugmentation with microorganisms like bacteria is an emerging approach that can mitigate the toxins from environmental sources. The present study was initiated to target the petroleum-contaminated soil of gasoline stations situated in Lahore. Petroleum degrading bacteria were isolated by serial dilution method followed by growth analysis, biochemical and molecular characterization, removal efficiency estimation, metabolites extraction, and GC-MS of the metabolites. Molecular analysis identified the bacterium as Bacillus cereus, which exhibited maximum growth at 72 hours and removed 75% petroleum. Biochemical characterization via the Remel RapID™ ONE panel system showed positive results for arginine dehydrolase (ADH), ornithine decarboxylase (ODC), lysine decarboxylase (LDC), o-nitrophenyl-β-D-galactosidase (ONPG), p-nitrophenyl-β-D-glucosidase (βGLU), p-nitrophenyl-N-acetyl-β-D-glucosaminidase (NAG), malonate (MAL), adonitol fermentation (ADON), and tryptophane utilization (IND). GC-MS-based metabolic profiling identified alcohols (methyl alcohol, o-, p- and m-cresols, catechol, and 3-methyl catechol), aldehydes (methanone, acetaldehyde, and m-tolualdehyde), carboxylic acid (methanoic acid, cis,cis-muconic acid, cyclohexane carboxylic acid and benzoic acid), conjugate bases of carboxylic acids (benzoate, cis,cis-muconate, 4-hydroxybenzoate, and pyruvate) and cycloalkane (cyclohexene). It suggested the presence of methane, methylcyclohexane, toluene, xylene, and benzene degradation pathways in B. cereus.

Molecular and metabolic characterization of petroleum hydrocarbons degrading <italic>Bacillus cereus</italic>

Polish Journal of Microbiology

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Molecular and metabolic characterization of petroleum hydrocarbons degrading 

Hydrocarbon constituents of petroleum are persistent, bioaccumulated, and bio-magnified in living tissues, transported to longer distances, and exert hazardous...

Molecular and metabolic characterization of petroleum hydrocarbons degrading Bacillus cereus

Article Category: ORIGINAL PAPER

Publicado en línea: 04 mar 2024

Páginas: 107 - 120

Recibido: 11 sept 2023

Aceptado: 12 feb 2024

DOI: https://doi.org/10.33073/pjm-2024-012

Palabras clave
petroleum, hydrocarbons, bioremediation, degradation, pollutants, GC-MS, metabolites

© 2024 Nadia Hussain et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Molecular and metabolic characterization of petroleum hydrocarbons degrading Bacillus cereus

Article Category: ORIGINAL PAPER

Publicado en línea: 04 mar 2024

Páginas: 107 - 120

Recibido: 11 sept 2023

Aceptado: 12 feb 2024

DOI: https://doi.org/10.33073/pjm-2024-012

Palabras clavepetroleum, hydrocarbons, bioremediation, degradation, pollutants, GC-MS, metabolites

© 2024 Nadia Hussain et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Palabras clave
petroleum, hydrocarbons, bioremediation, degradation, pollutants, GC-MS, metabolites