Biodegradation of 4-chlorophenol via a hydroquinone pathway by<i>Arthrobacter ureafaciens</i>CPR706

Bae, Hee Sung; Lee, James M.; Lee, Sung‐Taik

doi:10.1111/j.1574-6968.1996.tb08566.x

Cited by 56 publications

(7 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The primary habitat of Arthrobacter is soil and interestingly Arthrobacter strains with the ability to degrade nitrophenols and/or chlorophenols which include Arthrobacter chlorophonolicus A6 (Westerberg et al 2000), Arthrobacter ureafaciens , strain CPR706 (Bae et al 1996), Arthrobacter citrus (Karigar et al 2006), Arthrobacter protophormae strain RKJ100 (Chauhan et al 2000), Arthrobacter sp. strain JS443 (Jain et al 1994) and Arthrobacter aurescens TW17 (Hanne et al 1993) have all been isolated from pesticide-contaminated soil.…”

mentioning

confidence: 99%

Arthrobacter nitrophenolicus sp. nov. a new 2-chloro-4-nitrophenol degrading bacterium isolated from contaminated soil

Arora

Jain

2012

3 Biotech

View full text Add to dashboard Cite

Strain SJConT, a 2-chloro-4-nitrophenol (2C4NP) degrading bacterium, was isolated from soil collected from a pesticide-contaminated site in Punjab, India. The strain, which stained Gram positive, displayed a rod-coccus life cycle, and possessed a type A3α peptidoglycan (l-Lys–l-Ala3), MK-9(H2) as the major menaquinone, anteiso-C15 and iso-C15:0 as the major cellular fatty acids, and diphosphatidylglycerol, phosphatidylglycerol, phosphatidylinositol and a glycolipid as the major polar lipids, showed morphological and chemotaxonomic properties consistent with those reported for members of the genus Arthrobacter. Phylogenetic analysis of the 16S rRNA gene sequence of strain SJConT confirmed that it was a member of this genus with Arthrobacter globiformis DSM 20124T being the closest relative (sequence similarity of 97 %). The DNA G + C content of strain SJConT was 69 ± 1 mol% and DNA homology with A. globiformis DSM 20124T was 45 %, suggesting that strain SJConT represented a novel species of the genus Arthrobacter, which we have named Arthrobacter nitrophenolicus sp. nov The type strain is SJConT (=MTCC 10104T =DSM 23165T).

show abstract

mentioning

confidence: 99%

Arthrobacter nitrophenolicus sp. nov. a new 2-chloro-4-nitrophenol degrading bacterium isolated from contaminated soil

Arora

Jain

2012

3 Biotech

View full text Add to dashboard Cite

show abstract

“…The latter intermediate was suggested to be the ring-fission substrate, giving 3-hydroxymuconate after ortho cleavage, which could then be transformed into maleylacetate and finally 3-oxoadipate (Ferreira et al 2008. Previously, the formation of hydroquinone from 4-fluorophenol had been reported to occur in 4-chlorophenol grown Arthrobacter ureafaciens CPR706 (Bae et al 1996).…”

Section: Phenolsmentioning

confidence: 97%

The biodegradation vs. biotransformation of fluorosubstituted aromatics

Kiel

Engesser

2015

Appl Microbiol Biotechnol

View full text Add to dashboard Cite

Fluoroaromatics are widely and--in recent years--increasingly used as agrochemicals, starting materials for chemical syntheses and especially pharmaceuticals. This originates from the special properties the carbon-fluorine bond is imposing on organic molecules. Hence, fluoro-substituted compounds more and more are considered to be important potential environmental contaminants. On the other hand, the microbial potentials for their transformation and mineralization have received less attention in comparison to other haloaromatics. Due to the high electronegativity of the fluorine atom, its small size, and the extraordinary strength of the C-F bond, enzymes and mechanisms known to facilitate the degradation of chloro- or bromoarenes are not necessarily equally active with fluoroaromatics. Here, we review the literature on the microbial degradation of ring and side-chain fluorinated aromatic compounds under aerobic and anaerobic conditions, with particular emphasis being placed on the mechanisms of defluorination reactions.

show abstract

“… 18 − 20 Bacterial degradation of 4-CP occurs via either the hydroquinone (HQ) 21 or chlorocatechol (CC) pathway. 22 In the CC pathway via meta-cleavage, 4-CC is cleaved to yield a toxic compound, 5-chloro-2-hydoxymuconic semialdehyde (5C2HMS), by catechol-2,3-dioxygenase (EC = 1.13.11.2). 23 , 24 In several cases, 5C2HMS has been identified as a dead-end product in the degradation pathway of 4-CP.…”

Section: Introductionmentioning

confidence: 99%

“…and Rhodococcus sp. that utilize 4-CP as their carbon and energy sources have been isolated from the environment and activated sludge. − Bacterial degradation of 4-CP occurs via either the hydroquinone (HQ) or chlorocatechol (CC) pathway . In the CC pathway via meta-cleavage, 4-CC is cleaved to yield a toxic compound, 5-chloro-2-hydoxymuconic semialdehyde (5C2HMS), by catechol-2,3-dioxygenase (EC = 1.13.11.2). , In several cases, 5C2HMS has been identified as a dead-end product in the degradation pathway of 4-CP. , Conversely, in the CC pathway via ortho-cleavage, 4-CC is eventually transformed to cis -dienelactone through the release of chloride ions .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Bioremediation of 4-Chlorophenol by Electrically Neutral Reactive Species Generated from Nonthermal Atmospheric-Pressure Plasma

et al. 2022

View full text Add to dashboard Cite

4-Chlorophenol (4-CP) is a chlorinated aromatic compound with broad industrial applications. It is released into the environment as an industrial byproduct and is highly resistant to biodegradation. Pseudomonas sp. in the environment and activated sludge are used for 4-CP bioremediation; however, the degradation of 4-CP takes a long time. Consequently, the toxicity of 4-CP is a major barrier to its bioremediation. In this study, we investigated the synergistic effect of electrically neutral reactive species on the bacterial bioremediation of 4-CP. Our results showed that the concentration of 4-CP decreased from 2.0 to 0.137 mM and that it was converted to 4-chlorocatechol (4-CC; 0.257 mM), 4-chlororesorcinol (0.157 mM), hydroquinone (0.155 mM), and trihydroxy chlorobenzene and their respective ring-cleaved products following irradiation of neutral reactive species. These compounds were less toxic than 4-CP, except for 4-CC, which reduced the toxicity of 4-CP to Pseudomonas putida . When the neutral reactive species-treated 4-CP fraction was added to P. putida cultured in a synthetic sewage medium for 48 h, the 4-CP concentration was reduced to 0.017 mM, whereas nontreated 4-CP (2.0 mM) was hardly degraded by P. putida . These results suggest that the biodegradation of 4-CP can be efficiently improved by combining irradiation of neutral reactive species with microbial treatment. The irradiation of neutral reactive species of environmental pollutants may additionally lead to further improvements in bioremediation processes.

show abstract

Biodegradation of 4-chlorophenol via a hydroquinone pathway byArthrobacter ureafaciensCPR706

Cited by 56 publications

References 16 publications

Arthrobacter nitrophenolicus sp. nov. a new 2-chloro-4-nitrophenol degrading bacterium isolated from contaminated soil

Arthrobacter nitrophenolicus sp. nov. a new 2-chloro-4-nitrophenol degrading bacterium isolated from contaminated soil

The biodegradation vs. biotransformation of fluorosubstituted aromatics

Enhanced Bioremediation of 4-Chlorophenol by Electrically Neutral Reactive Species Generated from Nonthermal Atmospheric-Pressure Plasma

Contact Info

Product

Resources

About