Characterization of Hydrocarbon-Degrading Bacteria in Constructed Wetland Microcosms Used to Treat Crude Oil Polluted Water
| Autor: | Muhammad Afzal, Kaneez Fatima, Hans Brix, Carlos A. Arias, Qaiser M. Khan, Muhammad Anwar-ul-Haq, Amer Jamal Hashmat |
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| Rok vydání: | 2018 |
| Předmět: |
Cyperus laevigatus
Health Toxicology and Mutagenesis Biomass Bacillus 010501 environmental sciences ALKANE HYDROXYLASES Toxicology Typhaceae 01 natural sciences Plant Roots Pseudomonas Botany Soil Pollutants Petroleum Pollution 0105 earth and related environmental sciences Rhizosphere Typha Constructed wetlands biology Acinetobacter Bacteria Chemistry PHYTOREMEDIATION Water Pollution food and beverages Water 04 agricultural and veterinary sciences General Medicine DEGRADATION biology.organism_classification Pollution Hydrocarbons Phytoremediation Biodegradation Environmental Petroleum Bacterial diversity Wetlands 040103 agronomy & agriculture Constructed wetland 0401 agriculture forestry and fisheries Microcosm Plant Shoots |
| Zdroj: | Hashmat, A J, Afzal, M, Fatima, K, Anwar-ul-Haq, M, Khan, Q M, Arias, C A & Brix, H 2019, ' Characterization of Hydrocarbon-Degrading Bacteria in Constructed Wetland Microcosms Used to Treat Crude Oil Polluted Water ', Bulletin of Environmental Contamination and Toxicology, vol. 102, no. 3, pp. 358-364 . https://doi.org/10.1007/s00128-018-2518-y |
| ISSN: | 1432-0800 |
| DOI: | 10.1007/s00128-018-2518-y |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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