Isolation and characterization of two crude oil-degrading fungi strains from Rumaila oil field, Iraq

Adnan B. Al-Hawash; Jawadayn T. Alkooranee; Hayder A. Abbood; Jialong Zhang; Jin Sun; Xiaoyu Zhang; Fuying Ma

doi:10.1016/j.btre.2017.12.006

Biotechnology Reports (Mar 2018)

Isolation and characterization of two crude oil-degrading fungi strains from Rumaila oil field, Iraq

Adnan B. Al-Hawash,
Jawadayn T. Alkooranee,
Hayder A. Abbood,
Jialong Zhang,
Jin Sun,
Xiaoyu Zhang,
Fuying Ma

Affiliations

Adnan B. Al-Hawash: Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
Jawadayn T. Alkooranee: Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
Hayder A. Abbood: Material Engineering, College of Engineering, University of Basrah, Iraq
Jialong Zhang: Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
Jin Sun: Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
Xiaoyu Zhang: Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China
Fuying Ma: Key Laboratory of Molecular Biophysics of MOE, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, 430074, China

DOI: https://doi.org/10.1016/j.btre.2017.12.006
Journal volume & issue: Vol. 17, no. C
pp. 104 – 109

Abstract

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Among four crude oil-degrading fungi strains that were isolated from a petroleum-polluted area in the Rumaila oil field, two fungi strains showed high activity in aliphatic hydrocarbon degradation. ITS sequencing and analysis of morphological and biochemical characteristics identified these strains as Penicillium sp. RMA1 and RMA2. Gravimetric and gas chromatography analysis of the crude oil remaining in the culture medium after 14 days of incubation at 30 °C showed that RMA1 and RMA2 degraded the crude oil by 57% and 55%, respectively. These strains reduced surface tension when cultured on crude oil (1% v/v) and exhibited a cell surface hydrophobicity of more than 70%. These results suggested that RMA1 and RMA2 performed effective crude oil-degrading activity and crude oil emulsification. In conclusion, these fungal strains can be used in bioremediation process and oil pollution reduction in aquatic ecosystems.

Published in Biotechnology Reports

ISSN: 2215-017X (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Chemical technology: Biotechnology
Website: https://www.journals.elsevier.com/biotechnology-reports/

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