Biodegradation of phenol and phenol-related compounds by psychrophilic and cold-tolerant alpine yeasts

Bergauer, Philipp; Fonteyne, Pierre-Alain; Nolard, N.; Schinner, Franz; Margesin, Rosa

doi:10.1016/j.chemosphere.2004.11.011

Cited by 141 publications

(84 citation statements)

References 33 publications

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“…and one yeast (Cryptococcus) were identified as the main degraders. Other Cryptococcus isolates degraded phenol in laboratory media (Middelhoven, 1993;Bergauer et al, 2005) and, in one DNA-SIP study, a member of the same order (Tramellales) was detected as a phenol degrader in soil (DeRito and Madsen, 2009). Equally, Arthrobacter and Rhodococcus isolates can degrade phenol Karigar et al, 2006;Martinkova et al, 2009), and members of both genera were detected by DNA-SIP as phenanthrene degraders in soil (Cebron et al, 2011).…”

Section: Discussionmentioning

confidence: 99%

Importance of soil organic matter for the diversity of microorganisms involved in the degradation of organic pollutants

et al. 2014

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Many organic pollutants are readily degradable by microorganisms in soil, but the importance of soil organic matter for their transformation by specific microbial taxa is unknown. In this study, sorption and microbial degradation of phenol and 2,4-dichlorophenol (DCP) were characterized in three soil variants, generated by different long-term fertilization regimes. Compared with a non-fertilized control (NIL), a mineral-fertilized NPK variant showed 19% and a farmyard manure treated FYM variant 46% more soil organic carbon (SOC). Phenol sorption declined with overall increasing SOC because of altered affinities to the clay fraction (soil particles o2 mm in diameter). In contrast, DCP sorption correlated positively with particulate soil organic matter (present in the soil particle fractions of 63-2000 lm). Stable isotope probing identified Rhodococcus, Arthrobacter (both Actinobacteria) and Cryptococcus (Basidiomycota) as the main degraders of phenol. Rhodococcus and Cryptococcus were not affected by SOC, but the participation of Arthrobacter declined in NPK and even more in FYM. 14 C-DCP was hardly metabolized in the NIL variant, more efficiently in FYM and most in NPK. In NPK, Burkholderia was the main degrader and in FYM Variovorax. This study demonstrates a strong effect of SOC on the partitioning of organic pollutants to soil particle size fractions and indicates the profound consequences that this process could have for the diversity of bacteria involved in their degradation.

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Section: Discussionmentioning

confidence: 99%

Importance of soil organic matter for the diversity of microorganisms involved in the degradation of organic pollutants

et al. 2014

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“…These compounds are harmful to human health, and suspected to be carcinogens. Many techniques including physical adsorption [3][4][5][6][7][8], electrochemical oxidation [9][10][11], biodegradation [12][13][14], catalytic wet oxidation [15][16][17], and Fenton reagent oxidation [18][19][20] have been adopted for the removal of phenolic and aniline pollutants. Though practicable and effective these methods are, they also have some drawbacks, such as high cost, incomplete removal, more toxic byproducts than original pollutants.…”

Section: Introductionmentioning

confidence: 99%

Superparamagnetic Fe3O4 nanoparticles as catalysts for the catalytic oxidation of phenolic and aniline compounds

Zhang

Zhao

Niu

et al. 2009

Journal of Hazardous Materials

417

180

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a b s t r a c tFe 3 O 4 magnetic nanoparticles (MNPs) with diameters about 10 nm were synthesized successfully and used to remove phenol and aniline from aqueous solution. The results showed that phenol and aniline could be eliminated easily from solution under acidic and neutral conditions in the presence of MNPs and H 2 O 2 . When the concentrations of Fe 3 O 4 MNPs and H 2 O 2 were 5 g L −1 and 1.2 M, respectively, phenol and aniline could be removed completely after 6 h of reaction at 308 K, and the total organic carbon (TOC) abatement efficiency for phenol and aniline were 42.79% and 40.38%. Some intermediates such as formic acid, acetic acid, fumaric acid and hydroquinone were detected during reaction. Fe 3 O 4 MNPs exhibited good stability and reusability, also showed excellent catalysis ability to eliminate some substituted phenolic and aniline compounds from solution. Fe 3 O 4 MNPs had good superparamagnetism and was readily separated from solution by applying an external magnetic field. Finally we proposed that phenol and aniline might be degraded by the hydroxyl free radicals (·OH) released from H 2 O 2 in the presence of Fe 3 O 4 MNPs as catalysts.

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“…(Semple and Cain, 1996), and Rhodococcus sp. (Bergauer et al, 2005). These aerobes are more efficient at degrading toxic compounds because they grow faster than anaerobes and usually transform organic compounds to inorganic compounds.…”

Section: Introductionmentioning

confidence: 99%

Isolation, biochemical and molecular characterization of 2-chlorophenol-degrading Bacillus isolates

Al‐Thani¹,

Abd‐El‐Haleem²,

Al-Shammri³

2007

Afr. J. Biotechnol.

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Pure cultures of 2-chlorophenol degrading bacteria were isolated from a natural enrichment that may be adapted to chlorophenols in the industrial zone at Umm-Saied city (Qatar). The bacteria were identified by 16S rDNA analysis, using PCR with universal primers. Comparative analysis of the 16S rDNA sequence (~ 550 bp) in the GenBank database revealed that these bacteria are related to the genus Bacillus. Molecular heterogeneity among 2-chlorophenol-degrading bacteria was investigated using REP-PCR chromosomal fingerprinting and correlated with antibiotic profile analysis. REP-PCR results strongly confirmed that the bacterial isolates from different Qatari soils produced different fingerprinting patterns. The distribution of phenol hydroxylase catabolic gene among examined isolates revealed that three isolates out of six yielded positive PCR products. Degradation of 2-chlorophenol was studied using theses cultures in liquid medium under aerobic conditions, at initial concentrations of 0.25 -2.5 mM 2-chlorophenol. Undegraded 2-chlorophenol was quantified by high-performance liquid chromatography (HPLC). Degradation rates by isolates could be determined at concentrations up to 1.5 mM. However, higher concentrations of 2-chlorophenol (2.5 mM) were inhibitory to cell growth.

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Biodegradation of phenol and phenol-related compounds by psychrophilic and cold-tolerant alpine yeasts

Cited by 141 publications

References 33 publications

Importance of soil organic matter for the diversity of microorganisms involved in the degradation of organic pollutants

Importance of soil organic matter for the diversity of microorganisms involved in the degradation of organic pollutants

Superparamagnetic Fe3O4 nanoparticles as catalysts for the catalytic oxidation of phenolic and aniline compounds

Isolation, biochemical and molecular characterization of 2-chlorophenol-degrading Bacillus isolates

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