Aerobic biodegradation characteristics and metabolic products of quinoline by a Pseudomonas strain

Sun, Qinghua; Bai, Yaohui; Zhao, Cui; Xiao, Yana; Wen, Donghui; Tang, Xiaoyan

doi:10.1016/j.biortech.2009.05.044

Cited by 86 publications

(33 citation statements)

References 21 publications

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“…In addition, previous studies found that the quinoline degradation genes may locate in the plasmids of the strains (Aislabie et al 1990;Sun et al 2009). But this study demonstrated that the degradation genes were all located in the chromosome as no plasmid was observed in the strain BC001.…”

Section: Discussionmentioning

confidence: 96%

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Quinoline biodegradation and its nitrogen transformation pathway by a Pseudomonas sp. strain

et al. 2009

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A Pseudomonas sp. strain, which can utilize quinoline as its sole carbon, nitrogen and energy source, was isolated from activated sludge in a coking wastewater treatment plant. Quinoline can be degraded via the 8-hydroxycoumarin pathway. We quantified the first two organic intermediates of the biodegradation, 2-hydroxyquinoline and 2,8-dihydroxyquinoline. We tracked the transformation of the nitrogen in quinoline in two media containing different C/N ratios. At least 40.4% of the nitrogen was finally transformed into ammonium when quinoline was the sole C and N source. But addition of an external carbon source like glucose promoted the transformation of N from NH3 into NO3(-), NO2(-), and then to N2. The product analysis and gene characteristics indicated that the isolate accomplished heterotrophic nitrification and aerobic denitrification simultaneously. The study also demonstrated that quinoline and its metabolic products can be eliminated if the C/N ratio is properly controlled in the treatment of quinoline-containing wastewater.

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Section: Discussionmentioning

confidence: 96%

“…Compared with another quinoline-degrading bacterium of Pseudomonas sp. in our laboratory which has only nitrification potential (Sun et al 2009), the strain BC001 accomplished heterotrophic nitrification and aerobic denitrification simultaneously. The BC001 could utilize quinoline-N thoroughly if proper extra C source was provided.…”

Section: Discussionmentioning

confidence: 99%

Quinoline biodegradation and its nitrogen transformation pathway by a Pseudomonas sp. strain

et al. 2009

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“…[10][11][12][13] Over the past decade, biodegradation of quinoline had been extensively investigated, and various quinolinedegrading bacteria had been obtained. [14][15][16][17][18] Recently, Sun et al 19) studied the biodegradation characteristics and metabolic products of quinoline by Pseudomonas sp. isolated from activated sludge in a coking wastewater treatment plant and found that the strain could degrade 192-911 mg/L quinoline within 3-8 h, with removal rates ranging from 96 to 98%.…”

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Biodegradation characterization and immobilized strains’ potential for quinoline degradation by Brevundimonas sp. K4 isolated from activated sludge of coking wastewater

Wang

Zhang

Cheng

et al. 2015

Bioscience, Biotechnology, and Biochemistry

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“…Different bacteria and fungi, such as Rhodococcus sp., Burkholderia pickettii, Comamonas sp. and white rot fungus, have been used for degradation of quinoline (Cui et al 2004;Sun et al 2009;Zhang et al 2007). However, it has been found that these bacteria suffer from substrate inhibition, whereby growth (and consequently quinoline degradation) is inhibited at high quinoline concentrations.…”

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Biodegradation and Interaction of Quinoline and Glucose in Dual Substrates System

Han

et al. 2014

Bull Environ Contam Toxicol

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An indigenous mixed culture of microorganisms, isolated from a full-scale coal gasification wastewater treatment plant, was used in degrading quinoline in presence of glucose as an alternative carbon source. The results showed that biodegradation kinetics of both quinoline and glucose could be described by first-order reaction kinetics model. It was also found that the biodegradation rate of quinoline was accelerated by the presence of glucose, while glucose degradation was inhibited by the presence of quinoline. Both the biomass yield coefficient and specific growth rate were increased with the increasing of the glucose concentrations in the dual substrates system. A sum kinetics model was used to describe the relative effects of the two substrates on their individual uptakes. The interaction parameter values indicated that quinoline exhibits stronger inhibition on glucose degradation. But for glucose, its effect on quinoline utilization was stimulative. Furthermore, the stimulation was positively correlated with the concentration of glucose in the system.

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Aerobic biodegradation characteristics and metabolic products of quinoline by a Pseudomonas strain

Cited by 86 publications

References 21 publications

Quinoline biodegradation and its nitrogen transformation pathway by a Pseudomonas sp. strain

Quinoline biodegradation and its nitrogen transformation pathway by a Pseudomonas sp. strain

Biodegradation characterization and immobilized strains’ potential for quinoline degradation by Brevundimonas sp. K4 isolated from activated sludge of coking wastewater

Biodegradation and Interaction of Quinoline and Glucose in Dual Substrates System

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