Population dynamics and crude oil degrading ability of bacterial consortia of isolates from oil-contaminated sites in Nigeria / Dinámica de la población y capacidad de degradación del petróleo crudo de consorcios bacterianos de aislamientos de sitios contaminados con petróleo en Nigeria
Int. microbiol
; 25(2): 339-351, May. 2022. graf
Article
in En
| IBECS
| ID: ibc-216036
Responsible library:
ES1.1
Localization: ES15.1 - BNCS
ABSTRACT
Application of bacterial consortium of hydrocarbon degraders to crude oilcontaminated site can enhance bioremediation. This study evaluated the population dynamics and crude oil degradation abilities of various consortia developed from bacterial strains isolated from crude oilcontaminated sites using crude oilsupplemented Bushnell Haas media. Each consortium consisted of three bacterial strains and was designated as Consortium A (Serratia marcescens strain N4, Pseudomonas aeruginosa strain N3R, Pseudomonas aeruginosa strain W11), B (Pseudomonas aeruginosa strain N3R, Pseudomonas aeruginosa strain W11, Pseudomonas protegens strain P7), C (Serratia marcescens strain N4, Pseudomonas aeruginosa strain W11, Pseudomonas protegens strain P7), and D (Pseudomonas aeruginosa strain W15, Providencia vermicola strain W8, Serratia marcescens strain W13). There was progressive decline in the populations of Serratia marcescens strains in the consortia as the incubation period progressed. This may have led to reduction in their synergistic contribution and, subsequently, total degradation ability of crude oil by the consortia. The gravimetric analyses showed that Consortium D produced the highest % crude oil degradation of 29.66% compared to Consortia A, B, and C with 23.73%, 11.86%, and 19.49% respectively. Based on gas chromatographymass spectrometry analyses, Consortium D produced the highest percentage total petroleum hydrocarbon degradation of 73.65% compared to 68.24%, 68.94%, and 69.19% produced by Consortia A, B, and C respectively. The biodegradation potential of Consortium D also demonstrates the significance of using isolates from the same isolation site in development of consortium for bioremediation.(AU)
Key words
Search on Google
Collection:
06-national
/
ES
Database:
IBECS
Main subject:
Pseudomonas aeruginosa
/
Serratia marcescens
/
Biodegradation, Environmental
/
Petroleum
/
Hydrocarbons
Limits:
Humans
Country/Region as subject:
Africa
Language:
En
Journal:
Int. microbiol
Year:
2022
Document type:
Article