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Characterization of Hydrocarbon-Degrading Bacteria in Constructed Wetland Microcosms Used to Treat Crude Oil Polluted Water

descriptionPublicationkeyboard_double_arrow_right Article , Journal 12 Dec 2018Publisher:Springer Science and Business Media LLCJournal:Bulletin of Environmental Contamination and Toxicology, volume 102, pages 358-364 (issn: 0007-4861, eissn: 1432-0800,

Authors: Qaiser M. Khan; Carlos A. Arias; Muhammad Anwar-ul-Haq; Kaneez Fatima; Muhammad Afzal; Hans Brix; Amer Jamal Hashmat; +2 Authors

doi: 10.1007/s00128-018-2518-y

pmid: 30542756

Characterization of Hydrocarbon-Degrading Bacteria in Constructed Wetland Microcosms Used to Treat Crude Oil Polluted Water

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Abstract

Ten plant species were grown in constructed wetlands (CWs) to remediate water containing 2% (w/v) crude oil. The plant species with better growth and biomass production were Typha latifolia and Cyperus laevigatus, and they were significantly correlated (R2 = 0.91) with hydrocarbon degradation. From T. latifolia and C. laevigatus, 33 hydrocarbon-degrading bacterial strains were isolated from the rhizosphere, and root and shoot interiors. More diversified bacteria were found in the rhizosphere and endosphere of C. laevigatus than those of T. latifolia. The predominant cultural hydrocarbon-degrading bacteria were shown to belong to the genera Pseudomonas, Acinetobacter and Bacillus. In addition to genes involved in hydrocarbon degradation, most of the bacteria displayed multiple plant growth promoting (PGP) activities. This study suggests the importance of selecting suitable bacterial strains with hydrocarbon degradation and PGP activities for improving the efficacy of CWs used in remediating water contaminated with crude oil.

Related Organizations

Pakistan Institute of Engineering and Applied Sciences
Pakistan
Aarhus University
Denmark
National Institute for Biotechnology and Genetic Engineering
Pakistan
National Institute for Biotechnology and Genetic Engineering
Pakistan
Pakistan Institute of Engineering and Applied Sciences
Pakistan

Keywords

Bacillus, ALKANE HYDROXYLASES, Typhaceae, Plant Roots, Pseudomonas, Soil Pollutants, Petroleum Pollution, Biomass, Constructed wetlands, Acinetobacter, Bacteria, PHYTOREMEDIATION, Water Pollution, Water, DEGRADATION, Hydrocarbons, Phytoremediation, Biodegradation, Environmental, Petroleum, Bacterial diversity, Wetlands, Rhizosphere, Plant Shoots

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	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%