Characterization of Hydrocarbon-Degrading Bacteria in Constructed Wetland Microcosms Used to Treat Crude Oil Polluted Water
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 ( R 2 = 0.91) with hydrocarbon degradation. F...
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Published in | Bulletin of environmental contamination and toxicology Vol. 102; no. 3; pp. 358 - 364 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
New York
Springer US
01.03.2019
Springer Nature B.V |
Subjects | |
Online Access | Get full text |
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Summary: | 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 (
R
2
= 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. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0007-4861 1432-0800 |
DOI: | 10.1007/s00128-018-2518-y |