Degradation of Benzo[
            <i>a</i>
            ]pyrene by
            <i>Mycobacterium vanbaalenii</i>
            PYR-1

Moody, Joanna D.; Freeman, Jeremiah P.; Fu, Peter P.; Cerniglia, Carl E.

doi:10.1128/aem.70.1.340-345.2004

Cited by 174 publications

(88 citation statements)

References 31 publications

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“…The contributions by the anoxic and aerobic treatment were 45% and 48%, respectively, indicating that PAHs could be removed under anoxic conditions. Recently, several research groups reported that many microorganisms had the ability to degrade HMW PAHs through co-metabolism with laboratory prepared samples (Bouchez et al, 1995;Moody et al, 2004;Pan et al, 2004;Rentz et al, 2005). However, as shown in Fig.…”

Section: Performance Of the Produced Water Treatment Systemmentioning

confidence: 92%

“…The high-molecular-weight PAHs (HMW PAHs), on the other hand, used to be considered as being resistant to biodegradation. Recent reports indicated that many microorganisms could degrade HMW PAHs of 4 to 5 benzene rings through co-metabolism or other mechanisms (Moody et al, 2004;Rentz et al, 2005). With the evolution of microorganisms and progress of wide range studies, more and more PAHs have been found to be biodegradable (Hamme et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

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Co-variations of bacterial composition and catabolic genes related to PAH degradation in a produced water treatment system consisting of successive anoxic and aerobic units

Wang

Hesham

et al. 2007

Science of The Total Environment

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This paper reports on the investigation of concentration levels of PAHs, community structure, as well as the abundance of PAHrelated catabolic genes including upper-pathway dioxygenase genes (nahAc and phnAc) and down-pathway catechol dioxygenase genes (C12O and C23O) in a successive anoxic and aerobic treatment of produced water from the Jidong Oilfield, China. 93% of total PAHs were removed, almost equally contributed by the anoxic and aerobic units. However, PAHs of more than 3 benzene rings remained almost unchanged. The signals for phnAc and C12O were undetectable in this biological system, whereas the existence of nahAc and C23O was confirmed in the system and the copies of the two genes in the aerobic tank were 2 or 3 orders higher than those in the influent water sample. The different behavior of C23O demonstrated that mineralization of PAHs might mainly occur in the aerobic unit. The existence of nahAc and C23O genes in the influent and the high similarity of genotype between the influent and the two sludge samples suggested that bacteria existing in the influent contributed to PAH removal and bacteria harboring PAH catabolic genes were enriched in the sludge.

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Section: Performance Of the Produced Water Treatment Systemmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Co-variations of bacterial composition and catabolic genes related to PAH degradation in a produced water treatment system consisting of successive anoxic and aerobic units

Wang

Hesham

et al. 2007

Science of The Total Environment

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“…to five rings [5][6][7]. Gram negative bacteria that biodegrade PAHs include Burkholderia [8], Pseudomonas [7] and Sphingomonas [9].…”

Section: Introductionmentioning

confidence: 99%

“…Gram negative bacteria that biodegrade PAHs include Burkholderia [8], Pseudomonas [7] and Sphingomonas [9]. Gram positive bacteria such as Mycobacterium [6,10,11], Rhodococcus sp. were also reported to degrade PAHs [12].…”

Section: Introductionmentioning

confidence: 99%

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Simultaneous Biodegradation of Polyaromatic Hydrocarbons by a Stenotrophomonas sp: Characterization of nid Genes and Effect of Surfactants on Degradation

et al. 2016

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A polyaromatic hydrocarbon degrading bacterium was isolated from a petroleum contaminated site and designated as Stenotrophomonas sp. strain IITR87. It was found to utilize pyrene, phenanthrene and benzo(a)-pyrene as sole carbon source, but not anthracene, chrysene and fluoranthene. Gas chromatography and mass spectroscopy analysis resulted in identification of pyrene metabolites namely monohydroxypyrene, 4-oxa-pyrene-5-one, dimethoxypyrene and monohydroxyphenanthrene. Southern hybridization using naphthalene dioxygenase gene (nidA) as probe against the DNA of strain IITR87 revealed the presence of nidA gene. PCR analysis suggests dispersed occurrence of nid genes in the genome instead of a cluster as reported in a PAH-degrading Mycobacterium vanbaalenii PYR-1. The nid genes in strain IITR87, dioxygenase large subunit (nidA), naphthalene dioxygenase small subunit (nidB) and aldehyde dehydrogenase gene (nidD) showed more than 97 % identity to the reported nid genes from Mycobacterium vanbaalenii PYR-1. Most significantly, the biodegradation of PAHs was enhanced 25-60 % in the presence of surfactants rhamnolipid and Triton X-100 due to increased solubilization and bioavailability. These results could be useful for the improved biodegradation of high-molecular-weight PAHs in contaminated habitats.

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Bioremediation of Hazardous Organics

Becker

Seagren

2009

Environmental Microbiology

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Degradation of Benzo[ a ]pyrene by Mycobacterium vanbaalenii PYR-1

Cited by 174 publications

References 31 publications

Co-variations of bacterial composition and catabolic genes related to PAH degradation in a produced water treatment system consisting of successive anoxic and aerobic units

Co-variations of bacterial composition and catabolic genes related to PAH degradation in a produced water treatment system consisting of successive anoxic and aerobic units

Simultaneous Biodegradation of Polyaromatic Hydrocarbons by a Stenotrophomonas sp: Characterization of nid Genes and Effect of Surfactants on Degradation

Bioremediation of Hazardous Organics

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