Comparison of bacterial community structure and function under different petroleum hydrocarbon degradation conditions

Bioremediation methods have been successfully applied to the removal of organic pollutants for decades, but the responses of the microbial community to environmental factors remain less well known. In this work, the degradation rates of petroleum hydrocarbons (PHs) reached up to 50.11% ± 2.74% after...

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Bibliographic Details
Published in:Bioprocess and biosystems engineering 2020-02, Vol.43 (2), p.303-313
Main Authors: Cui, Jiaqi, Chen, Hong, Sun, Mingbo, Wen, Jianping
Format: Article
Language:English
Subjects:
Acinetobacter
Amino acids
Bacteria
Biodegradation
Bioremediation
Biotechnology
Burkholderia
Carbohydrate metabolism
Carbohydrates
Chemistry
Chemistry and Materials Science
Community structure
Degradation
Environmental Engineering/Biotechnology
Environmental factors
Food Science
Hydrocarbon-degrading bacteria
Hydrocarbons
Industrial and Production Engineering
Industrial Chemistry/Chemical Engineering
Metabolism
Microorganisms
Organic wastes
Petroleum
Petroleum hydrocarbons
Pollutant removal
Pollutants
Research Paper
Statistical analysis
Structure-function relationships
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Summary:Bioremediation methods have been successfully applied to the removal of organic pollutants for decades, but the responses of the microbial community to environmental factors remain less well known. In this work, the degradation rates of petroleum hydrocarbons (PHs) reached up to 50.11% ± 2.74% after optimizing the degradation conditions. Under the influence of the optimized degradation conditions, the diversity of the bacterial community gradually increased. Meanwhile, the dominant bacterial genera, encompassing Burkholderia-Paraburkholderia , Luteibacter , and Acinetobacter , remained stable. Moreover, statistical analysis indicated that the genera Bacterium , Burkholderia-Paraburkholderia , Luteibacter , and Acinetobacter contributed the most to PHs degradation. Additionally, the functional modules of amino acid metabolism, carbohydrate metabolism, as well as global and overview maps played a vital role in the metabolization of PHs. Therefore, understanding the changes of the microbial community structure and function can provide valuable guidance to further improve the degradation rate of organic waste via bioremediation methods.
ISSN:1615-7591
1615-7605
DOI:10.1007/s00449-019-02227-1