Principles of microbial PAH-degradation in soil

Johnsen, Anders R.; Wick, Lukas Y.; Harms, Hauke

doi:10.1016/j.envpol.2004.04.015

Cited by 1,014 publications

(613 citation statements)

References 98 publications

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“…Taking into account the fact that more than 57 % of the SCS isolates belonged to the genus Pseudomonas, and the fact that the Pseudomonas affiliated 72 bp sized T-RF (Table 3) represented *40 % of the relative abundance in sample SCS, we may assume that the pseudomonads are the most active within highly PAH contaminated environments. This finding is in accordance with reports of other studies which also found the dominance of Pseudomonas species in different PAH impacted environments (Ma et al 2006;Bamforth and Singleton 2005;Johnsen et al 2005;Liu et al 2010). The present study provides further evidence for the overwhelming dominance of proteobacterial and actinobacterial isolates within highly PAH contaminated soils.…”

Section: Discussionsupporting

confidence: 93%

“…In contrast, it has been found that the number of bacterial taxonomic groups which perform the degradation of PAHs in soils is limited. Sphingomonads proved to be the most common PAH-degrading isolates (Johnsen 2005;Takeuchi et al 2001). Besides, PAH biodegradation ability of members of the genera Corynebacterium, Aeromonas, Rhodococcus and Bacillus has also been reported (Mrozik et al 2003).…”

Section: Introductionmentioning

confidence: 99%

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Remarkable impact of PAHs and TPHs on the richness and diversity of bacterial species in surface soils exposed to long-term hydrocarbon pollution

Benedek

Vajna

Táncsics

et al. 2013

World J Microbiol Biotechnol

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Nowadays, because of substantial use of petroleum-derived fuels the number and extension of hydrocarbon polluted terrestrial ecosystems is in growth worldwide. In remediation of aforementioned sites bioremediation still tends to be an innovative, environmentally attractive technology. Although huge amount of information is available concerning the hydrocarbon degradation potential of cultivable hydrocarbonoclastic bacteria little is known about the in situ long-term effects of petroleum derived compounds on the structure of soil microbiota. Therefore, in this study our aim was to determine the longterm impact of total petroleum hydrocarbons (TPHs), volatile petroleum hydrocarbons (VPHs), total alkyl benzenes (TABs) as well as of polycyclic aromatic hydrocarbons (PAHs) on the structure of bacterial communities of four different contaminated soil samples. Our results indicated that a very high amount of TPH affected positively the diversity of hydrocarbonoclastic bacteria. This finding was supported by the occurrence of representatives of the a-, b-, c-Proteobacteria, Actinobacteria, Flavobacteriia and Bacilli classes. High concentration of VPHs and TABs contributed to the predominance of actinobacterial isolates. In PAH impacted samples the concentration of PAHs negatively correlated with the diversity of bacterial species. Heavily PAH polluted soil samples were mainly inhabited by the representatives of the b-, cProteobacteria (overwhelming dominance of Pseudomonas sp.) and Actinobacteria.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Remarkable impact of PAHs and TPHs on the richness and diversity of bacterial species in surface soils exposed to long-term hydrocarbon pollution

Benedek

Vajna

Táncsics

et al. 2013

World J Microbiol Biotechnol

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“…For all test compounds, actual concentrations at the beginning of the experiment after correcting for recovery ranged from 70% to 91% of the nominal value. The concentrations of anthracene, phenanthrene, acridine and phenanthridine in the test sediment decreased by 25%, 42%, 18% and 55% respectively during the experiment, probably due to microbial degradation (Van Herwijnen et al, 2003;Johnsen et al, 2005). Actual concentrations of acridone and phenanthridone in the sediment remained nearly constant during the experiment, indicating that these transformation products were not further degraded.…”

Section: Pac Measurementsmentioning

confidence: 94%

“…However, azaarene concentrations are not monitored in sediments and few ecotoxicological data are available for this group of heterocyclic compounds. Like homocyclic PACs, azaarenes are actively biotransformed by invertebrates (Guerrero et al, 2002;Stroomberg et al, 2004) and biodegraded by bacteria (Johnsen et al, 2005;Sartoros et al, 2005), resulting in a vast number of heterocyclic transformation products. Azaarenes and their transformation products, more polar than their homocyclic analogues, can interact specifically with cell membranes and DNA, and this interaction may influence their toxicity (De Voogt et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Life cycle responses of the midge Chironomus riparius to polycyclic aromatic compound exposure

Paumen

Borgman

Kraak

et al. 2008

Environmental Pollution

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General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Emergence of Chironomus riparius is a sensitive endpoint to detect life cycle effects of PACs. AbstractDuring acute exposure, polycyclic aromatic compounds (PACs) act mainly by narcosis, but during chronic exposure the same compounds may exert sublethal life cycle effects. The aim of this study was therefore to evaluate the chronic effects of sediment spiked PACs on the emergence of the midge Chironomus riparius. Three isomer pairs were selected, and 28-day LC 50 values and 50% emergence times (EMt 50 ) were determined. Concentrationeresponse relationships were observed for phenanthrene, acridine, phenanthridine and acridone. Anthracene and phenanthridone had no effect on total emergence, but did cause a delay in emergence. Calculated porewater LC 50 values correlated well with logK ow values, suggesting narcosis as mode of action. In contrast, effect concentrations for delay in emergence (EMt 50 ) deviated from narcosis, suggesting a specific mode of action during chronic exposure. It is concluded that emergence is a powerful endpoint to detect life cycle effects of PACs on a key sediment inhabiting invertebrate. Ó 2007 Elsevier Ltd. All rights reserved.Keywords: Chironomus riparius; Polycyclic aromatic compounds; Emergence IntroductionPolycyclic aromatic compounds (PACs) are ubiquitous contaminants, present in the environment mainly as a result of anthropogenic activities (industry, oil drilling and vehicle emissions). Smaller amounts of PACs are generated in natural processes, like volcanism and forest fires (Neilson, 1998). Because of their hydrophobicity, PACs tend to accumulate in sediments and soils, which act not only as a sink, but also as a source of PACs for benthic organisms (Wilcke, 2000;Van Metre and Mahler, 2005). In sediment cores from 38 urban and reference lakes across the United States, total sediment SPAH concentrations (SPAH ¼ sum of 13 homocyclic PACs used for the consensus-based sediment quality guidelines in the USA) ranged from 0.5 to 10 mg/kg (Van Metre and Mahler, 2005).Populations of benthic invertebrates are exposed to a variety of PACs in the sediment, but little is known about their chronic effects, since research has mainly focused on acute exposure (Bleeker et al., 1998; Neilson, 199...

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“…Sorption and poor solubility in water makes the major fraction of PAHs inaccessible for bacterial degradation (Bosma et al, 1997;Volkering et al, 1992). Although one controversial study reported on bacteria that directly accessed the sorbed substrate (Guerin and Boyd, 1997), presently it is believed that PAHs adsorbed on soil particles, solid PAH crystals, or hydrocarbons dissolved in non-aqueous phase liquids (NAPLs) remain unavailable to bacteria (Johnsen et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Evidence for in situ degradation of mono-and polyaromatic hydrocarbons in alluvial sediments based on microcosm experiments with 13C-labeled contaminants

Morasch

Höhener

Hunkeler

2007

Environmental Pollution

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A method based on 13 C-labeled substrates was developed to determine the intrinsic biodegradation potential of aromatic pollutants under oxic and under anoxic conditions. AbstractA microcosm study was conducted to investigate the degradation of mono-and polyaromatic hydrocarbons under in situ-like conditions using alluvial sediments from the site of a former cokery. Benzene, naphthalene, or acenaphthene were added to the sediments as 13 C-labeled substrates. Based on the evolution of 13 C-CO 2 determined by gas chromatography isotope-ratio mass spectrometry (GC-IRMS) it was possible to prove mineralization of the compound of interest in the presence of other unknown organic substances of the sediment material. This new approach was suitable to give evidence for the intrinsic biodegradation of benzene, naphthalene, and acenaphthene under oxic and also under anoxic conditions, due to the high sensitivity and reproducibility of 13 C/ 12 C stable isotope analysis. This semi-quantitative method can be used to screen for biodegradation of any slowly degrading, strongly sorbing compound in long-term experiments.

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Principles of microbial PAH-degradation in soil

Cited by 1,014 publications

References 98 publications

Remarkable impact of PAHs and TPHs on the richness and diversity of bacterial species in surface soils exposed to long-term hydrocarbon pollution

Remarkable impact of PAHs and TPHs on the richness and diversity of bacterial species in surface soils exposed to long-term hydrocarbon pollution

Life cycle responses of the midge Chironomus riparius to polycyclic aromatic compound exposure

Evidence for in situ degradation of mono-and polyaromatic hydrocarbons in alluvial sediments based on microcosm experiments with 13C-labeled contaminants

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