Characterization of a novel cometabolic degradation carbazole pathway by a phenol-cultivated Arthrobacter sp. W1

Shi, Shengnan; Qu, Yuanyuan; Ma, Qiao; Ma, Fang

doi:10.1016/j.biortech.2015.06.106

Cited by 16 publications

(3 citation statements)

References 26 publications

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“…indole, pyridine and quinoline) usually co‐exist in petrochemical and coking wastewater . Previous studies indicated that the phenol‐degrading strains showed potential for biodegradation and biotransformation of N ‐heterocyclic compounds, such as pyridine, quinoline, indole and carbazole . In this study, it was proven that the nitrogen‐containing organic pollutants (indole, pyridine and quinoline) could be effectively removed by phenol‐stimulated activated sludge.…”

Section: Discussionmentioning

confidence: 71%

“…1,3 Previous studies indicated that the phenol-degrading strains showed potential for biodegradation and biotransformation of N-heterocyclic compounds, such as pyridine, quinoline, indole and carbazole. 7,9,10,12 In this study, it was proven that the nitrogen-containing organic pollutants (indole, pyridine and quinoline) could be effectively removed by phenol-stimulated activated sludge. Compared with the glucose-stimulated control, the phenol-stimulated microbial consortia could quickly adapt to the nitrogen-containing organic pollutants, leading to faster removal rates at an early operation stage (Supporting information, Fig.…”

Section: Discussionmentioning

confidence: 91%

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Bioremediation of nitrogen‐containing organic pollutants using phenol‐stimulated activated sludge: performance and microbial community analysis

Zhang

You

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Coking wastewater generally contains high levels of phenolics and nitrogen‐containing organic pollutants, thus seeking an appropriate wastewater treatment strategy is necessary. In this study, the triplicate phenol‐stimulated activated sludges (group C) were constructed for aerobic treatment of nitrogen‐containing organic pollutants (indole, pyridine and quinoline), and glucose‐stimulated sludges (group B) were used as control. RESULTS Both groups maintained high efficiency (>90%) for removal of nitrogen‐containing organic pollutants after long‐term operation (90 days). Illumina MiSeq sequencing of 16S rRNA gene amplicons revealed that alpha diversity decreased after receiving nitrogen‐containing pollutants. Glucose exerted protective effects on sludge microbes, but phenol‐stimulated microbial consortia showed greater stability when without supplementation of stimulated substrates. Canonical correspondence analysis and Mantel tests indicated that the microbial community structure was significantly associated with indole and quinoline (P < 0.05). Among the dominant genera, Comamonas was the core genus in both groups for pollutants removal, while Thauera and Sphingomonas should be key functional taxa in glucose‐stimulated sludges, with Pseudoxanthomonas, Brevundimonas and Shinella in phenol‐stimulated sludges. PICRUSt (Phylogenetic Investigation of Communities by Reconstruction of Unobserved States) analysis suggested that the important functional metabolic capabilities should be those related to Cytochrome P450 enzymes and naphthalene degradation, which were significantly correlated with the nitrogen‐containing organic pollutants (P < 0.05). CONCLUSION The results indicated that phenol‐stimulated microbial consortia could be used for efficient removal of nitrogen‐containing organic pollutants, and therefore could have potential for the bioremediation of coking wastewater. © 2018 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 91%

Bioremediation of nitrogen‐containing organic pollutants using phenol‐stimulated activated sludge: performance and microbial community analysis

Zhang

You

et al. 2018

J of Chemical Tech & Biotech

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“…Cometabolic degradation has been found to be eco-friendly and economically feasible in the process of treating recalcitrant compounds 19 , and coking wastewater (CWW) treatment 20 . Many studies stated that when phenol was used as the cometabolic substrate, the degradation efficiency of p -nitrophenol 21 , carbazole 22 and 4-chlorophenol 23 increased. In cometabolism, metabolic substrates such as glucose, methyl alcohol are sufficient source of carbon and energy for microbes to grow.…”

Section: Introductionmentioning

confidence: 99%

Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system

Upadhyay

Sinha

2021

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In this study, a bacterial strain Serratia sp. was employed for the reduction of synthetically prepared different concentration of Cr(VI) solution (10, 25, 40, 50 and 100 mg/L). Cometabolism study have been carried out in the binary substrate system as well as in the tertiary substrate system. The results revealed that when glucose was added as a co-substrate, at low Cr(VI) concentration, complete reduction was achieved followed by increased biomass growth, but when Cr(VI) concentration was increased to 100 mg/L, the reduction decline to 93%. But in presence of high carbon iron filings (HCIF) as co-substrate even at higher Cr(VI) concentration i.e. 100 mg/L, 100% reduction was achieved and the cell growth continued till 124 h. The study was illustrated via Monod growth kinetic model for tertiary substrate system and the kinetic parameters revealed that the HCIF and glucose combination showed least inhibition to hexavalent chromium reduction by Serratia sp.

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Cometabolic Bioremediation

Hazen¹

2018

Consequences of Microbial Interactions With Hydrocarbons, Oils, and Lipids: Biodegradation and Bioremediation

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Cometabolic bioremediation is probably the most under appreciated bioremediation strategy currently available. Cometabolism strategies stimulate only indigenous microbes with the ability to degrade the contaminant and cosubstrate e.g. methane, propane, toluene and others. This highly targeted stimulation insures that only those microbes that can degrade the contaminant are targeted, thus reducing amendment costs, well and formation plugging, etc. Cometabolic bioremediation has been used on some of the most recalcitrant contaminants, e.g. PCE, TCE, MTBE, TNT, dioxane, atrazine, etc. Methanotrophs have been demonstrated to produce methane monooxygense, an oxidase that can degrade over 300 compounds. Cometabolic bioremediation also has the advantage of being able to degrade contaminants to trace concentrations, since the biodegrader is not dependent on the contaminant for carbon or energy. Increasingly we are finding that in order to protect human health and the environment that we must remediate to lower and lower concentrations, especially for compounds like endocrine disrupters, thus cometabolism may be the best and maybe the only possibility that we have to bioremediate some contaminants.

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Characterization of a novel cometabolic degradation carbazole pathway by a phenol-cultivated Arthrobacter sp. W1

Cited by 16 publications

References 26 publications

Bioremediation of nitrogen‐containing organic pollutants using phenol‐stimulated activated sludge: performance and microbial community analysis

Bioremediation of nitrogen‐containing organic pollutants using phenol‐stimulated activated sludge: performance and microbial community analysis

Modeling cometabolism of hexavalent chromium by iron reducing bacteria in tertiary substrate system

Cometabolic Bioremediation

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