The Genus Phenylobacterium

Eberspächer, Jürgen; Lingens, Franz

doi:10.1007/0-387-30745-1_13

Cited by 27 publications

(24 citation statements)

References 21 publications

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“…A sequence related to Phenylobacterium was also recovered in the incubation of bioreactor-treated soil with 13 C-labeled anthraquinone, although it was only 5% of the clone library (Table 2). Phenylobacterium is not a well-studied genus, with the first species reported in 1985 (53) and remaining the only reported species until the mid-2000s (54). Sequences related to Phenylobacterium have been observed previously in petroleum reservoirs (55) and polychlorinated biphenyl-contaminated soil (56).…”

Section: Discussionmentioning

confidence: 99%

Identification of Anthraquinone-Degrading Bacteria in Soil Contaminated with Polycyclic Aromatic Hydrocarbons

Zhang

Adrion

et al. 2015

Appl Environ Microbiol

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Quinones and other oxygenated polycyclic aromatic hydrocarbons (oxy-PAHs) are toxic and/or genotoxic compounds observed to be cocontaminants at PAH-contaminated sites, but their formation and fate in contaminated environmental systems have not been well studied. Anthracene-9,10-dione (anthraquinone) has been found in most PAH-contaminated soils and sediments that have been analyzed for oxy-PAHs. However, little is known about the biodegradation of oxy-PAHs, and no bacterial isolates have been described that are capable of growing on or degrading anthraquinone. PAH-degrading Mycobacterium spp. are the only organisms that have been investigated to date for metabolism of a PAH quinone, 4,5-pyrenequinone. We utilized DNA-based stable-isotope probing (SIP) with [U-13 C]anthraquinone to identify bacteria associated with anthraquinone degradation in PAH-contaminated soil from a former manufactured-gas plant site both before and after treatment in a laboratory-scale bioreactor. SIP with [U-13 C]anthracene was also performed to assess whether bacteria capable of growing on anthracene are the same as those identified to grow on anthraquinone. Organisms closely related to Sphingomonas were the most predominant among the organisms associated with anthraquinone degradation in bioreactor-treated soil, while organisms in the genus Phenylobacterium comprised the majority of anthraquinone degraders in the untreated soil. Bacteria associated with anthracene degradation differed from those responsible for anthraquinone degradation. These results suggest that Sphingomonas and Phenylobacterium species are associated with anthraquinone degradation and that anthracene-degrading organisms may not possess mechanisms to grow on anthraquinone.O xygenated polycyclic aromatic hydrocarbons (oxy-PAHs) such as quinones are cocontaminants in PAH-contaminated soils and sediments (1-3). They are of concern because they have been identified to be toxic and/or genotoxic, either as pure compounds (2, 4-6) or by association with genotoxic fractions of fractionated extracts from contaminated soils and sediments (7-9). In addition, because they are more polar than the parent PAHs, oxyPAHs can exhibit greater mobility within a contaminated environmental system (2, 10). Little is known about the fate of oxyPAHs in contaminated systems, in part because relatively few studies have attempted to identify these compounds and the analytical methods have not yet been standardized (11,12).It is not possible to assess the source(s) or fate of oxy-PAHs in contaminated systems from observation of their presence alone, although it has been suggested that the ratio of an oxy-PAH to the parent PAH can be diagnostic of the source (3, 13). Oxy-PAHs can be present in the same source as the PAHs (2) (such as coal tars), formed in the atmosphere by heterogeneous reactions on particles containing PAHs (14) that can reach soil or sediment by deposition, or produced by chemical or photochemical oxidation of PAHs in situ (2). Oxy-PAHs can also result from microbial transformat...

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Section: Discussionmentioning

confidence: 99%

Identification of Anthraquinone-Degrading Bacteria in Soil Contaminated with Polycyclic Aromatic Hydrocarbons

Zhang

Adrion

et al. 2015

Appl Environ Microbiol

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“…Among other neighbors of OTU359, OTU423- CL500 - 29 marine group are widespreadly aquatic bacteria; OTU1032- Gemmatimonas strains have photosynthetic pigments [i.e., bacteriochlorophyll a (Zeng et al, 2015) and carotenoids (Takaichi et al, 2009)] and polyphosphate-accumulating functions (Zhang et al, 2003). It is difficult to understand the connection of other neighbors with OTU359 because their ecophysiology is unclear (e.g., SM1A02, I-10 ) or appears irrelevant to cyanobacteria [e.g., Phenylobacterium ; the physiology of reported strains are mainly involved in organic contaminant biodegradation (Tiago et al, 2005; Eberspächer and Lingens, 2006)]. The relationships between OTU359 and the related two neighbors (OTU74 and OTU 190) in the FLB network were also unclear.…”

Section: Discussionmentioning

confidence: 99%

Distinct Network Interactions in Particle-Associated and Free-Living Bacterial Communities during a Microcystis aeruginosa Bloom in a Plateau Lake

et al. 2017

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Particle-associated bacteria (PAB) and free-living bacteria (FLB) from aquatic environments during phytoplankton blooms differ in their physical distance from algae. Both the interactions within PAB and FLB community fractions and their relationship with the surrounding environmental properties are largely unknown. Here, by using high-throughput sequencing and network-based analyses, we compared the community and network characteristics of PAB and FLB from a plateau lake during a Microcystis aeruginosa bloom. Results showed that PAB and FLB differed significantly in diversity, structure and microbial connecting network. PAB communities were characterized by highly similar bacterial community structure in different sites, tighter network connections, important topological roles for the bloom-causing M. aeruginosa and Alphaproteobacteria, especially for the potentially nitrogen-fixing (Pleomorphomonas) and algicidal bacteria (Brevundimonas sp.). FLB communities were sensitive to the detected environmental factors and were characterized by significantly higher bacterial diversity, less connectivity, larger network size and marginal role of M. aeruginosa. In both networks, covariation among bacterial taxa was extensive (>88% positive connections), and bacteria potentially affiliated with biogeochemical cycling of nitrogen (i.e., denitrification, nitrogen-fixation and nitrite-oxidization) were important in occupying module hubs, such as Meganema, Pleomorphomonas, and Nitrospira. These findings highlight the importance of considering microbial network interactions for the understanding of blooms.

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“…Phenylobacterium and Sphingopyxis spp. were also shown to degrade several aromatic hydrocarbons as a carbon source ( Eberspaecher and Lingens, 2006 ; Kertesz and Kawasaki, 2010 ; Lan et al, 2011 ; Kim et al, 2014 ; Yang et al, 2014 ). Similarly, strains of the genera Pseudomonas, Alcanivorax and Halomonas , which prevailed the class Gammaproteobacteria, are renowned for their global distribution in contaminated sites and for their ability to degrade hydrocarbons ( Hara et al, 2003 ; Schneiker et al, 2006 ; Mnif et al, 2009 ; Linda and Bouziane, 2012 ; Oyetibo et al, 2013 ).…”

Section: Discussionmentioning

confidence: 99%

Effect of Biostimulation Using Sewage Sludge, Soybean Meal, and Wheat Straw on Oil Degradation and Bacterial Community Composition in a Contaminated Desert Soil

Al-Kindi

Abed

2016

Front. Microbiol.

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Waste materials have a strong potential in the bioremediation of oil-contaminated sites, because of their richness in nutrients and their economical feasibility. We used sewage sludge, soybean meal, and wheat straw to biostimulate oil degradation in a heavily contaminated desert soil. While oil degradation was assessed by following the produced CO2 and by using gas chromatography–mass spectrometry (GC–MS), shifts in bacterial community composition were monitored using illumina MiSeq. The addition of sewage sludge and wheat straw to the desert soil stimulated the respiration activities to reach 3.2–3.4 times higher than in the untreated soil, whereas the addition of soybean meal resulted in an insignificant change in the produced CO2, given the high respiration activities of the soybean meal alone. GC–MS analysis revealed that the addition of sewage sludge and wheat straw resulted in 1.7–1.8 fold increase in the degraded C14 to C30 alkanes, compared to only 1.3 fold increase in the case of soybean meal addition. The degradation of ≥90% of the C14 to C30 alkanes was measured in the soils treated with sewage sludge and wheat straw. MiSeq sequencing revealed that the majority (76.5–86.4% of total sequences) of acquired sequences from the untreated soil belonged to Alphaproteobacteria, Gammaproteobacteria, and Firmicutes. Multivariate analysis of operational taxonomic units placed the bacterial communities of the soils after the treatments in separate clusters (ANOSIM R = 0.66, P = 0.0001). The most remarkable shift in bacterial communities was in the wheat straw treatment, where 95–98% of the total sequences were affiliated to Bacilli. We conclude that sewage sludge and wheat straw are useful biostimulating agents for the cleanup of oil-contaminated desert soils.

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The Genus Phenylobacterium

Cited by 27 publications

References 21 publications

Identification of Anthraquinone-Degrading Bacteria in Soil Contaminated with Polycyclic Aromatic Hydrocarbons

Identification of Anthraquinone-Degrading Bacteria in Soil Contaminated with Polycyclic Aromatic Hydrocarbons

Distinct Network Interactions in Particle-Associated and Free-Living Bacterial Communities during a Microcystis aeruginosa Bloom in a Plateau Lake

Effect of Biostimulation Using Sewage Sludge, Soybean Meal, and Wheat Straw on Oil Degradation and Bacterial Community Composition in a Contaminated Desert Soil

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