Fungal biodegradation of naphthalene: microcosms studies

Mollea, Chiara; Bosco, Francesca; Ruggeri, Bernardo

doi:10.1016/j.chemosphere.2005.01.034

Cited by 68 publications

(32 citation statements)

References 22 publications

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“…It was surprising that P. chrysoporium did not influence repellency, as previous work has found this fungus to be effective at degrading PAHs in soil at concentrations ranging from 7 ppm to 600 ppm (Mollea et al, 2005). Research by Novotny et al (2004) showed that both P. chrysoporium and C. versicolor produce elevated levels of enzymes that are important to PAH degradation if grown in PAH contaminated systems.…”

Section: Discussionmentioning

confidence: 95%

“…In soil, this will influence water availability to plants and microorganisms, reducing its capacity to support biological processes (Chaudhry et al, 2005). Many studies have shown that non-native, white-rot, wood decaying basidiomycete fungi are effective at degrading these contaminants in controlled laboratory experiments (Li et al, 2005;Mollea et al, 2005). Other studies have shown that treating soil with surfactants reduces repellency levels and accelerates degradation rates (Mulligan, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Impact of basidiomycete fungi on the wettability of soil contaminated with a hydrophobic polycyclic aromatic hydrocarbon

Hallett¹,

White

Ritz

2006

Biologia

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Polyaromatic hydrocarbons (PAHs) present a challenge to bioremediation because they are hydrophobic, thus influencing the water availability and repellency of soil. The addition of different concentrations of the PAH, anthracene, showed it to induce moderate levels of repellency. We investigated the efficacy of three basidiomycete fungal species on improving the wettability of soil by reducing repellency caused by contamination of soil with 7 ppm anthracene. A microcosm system was used that enabled determination of the impact of fungi on wettability at three locations down a 30 mm deep repacked soil core. Before incubation with fungi, the contaminated soil had a repellency of R = 3.12 ± 0.08 (s.e.). After 28 days incubation, Coriolus versicolor caused a significant reduction in repellency to R = 1.79 ± 0.35 (P < 0.001) for the top section of the soil in a microcosm. Phanerochaete chrysosporium and Phlebia radiata did not influence repellency. None of the fungi had an effect at 20 mm depth.

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Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Impact of basidiomycete fungi on the wettability of soil contaminated with a hydrophobic polycyclic aromatic hydrocarbon

Hallett¹,

White

Ritz

2006

Biologia

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“…Among other organic pollutants [2,3], phenols [4][5][6] and phenolic acids [7][8][9] are considered the most important components of industrial waste. These compounds originate from the degradation of organic matter and for this reason they are widely spread, owing to both natural and anthropogenic sources.…”

Section: Introductionmentioning

confidence: 99%

Application of microchip‐CE electrophoresis to follow the degradation of phenolic acids by aquatic plants

Ding

Garcı́a

2006

Electrophoresis

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In this paper, we describe the separation and detection of six phenolic acids using an electrophoretic microchip with pulsed amperometric detection (PAD). The selected phenolic acids are particularly important because of their biological activity. The analysis of these compounds is typically performed by chromatography or standard CE coupled with a wide variety of detection modes. However, these methods are slow, labor intensive, involve a multistep solvent extraction, require skilled personnel, or use bulky and expensive instrumentation. In contrast, microchip CE offers the possibility of performing simpler, less expensive, and faster analysis. In addition, integrated devices can be custom-fabricated and incorporated with portable computers to perform on-site analysis. In the present report, the effect of the separation potential, buffer pH and composition, injection time and PAD parameters were studied in an effort to optimize both the separation and detection of these phenolic acids. Using the optimized conditions, the analysis can be performed in less than 3 min, with detection limits ranging from 0.73 microM (0.10 microg/mL) for 4-hydroxyphenylacetic acid to 2.12 microM (0.29 microg/mL) for salicylic acid. In order to demonstrate the capabilities of the device, the degradation of a mixture of these acids by two aquatic plants was followed using the optimized conditions.

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“…However, biodegradation appears to be environmentally friendly, and has turned out to be a favorable alternative. Previous studies showed that a number of bacterial strains are able to utilize naphthalene and its derivatives under aerobic and anaerobic conditions, e.g., Pseudomonas sp., Desulfo indolicum, Burkholderia pickettii, Bacillus fusiformis and white rot fungus (Lin et al 2010;Mollea et al 2005, O'Loughlin et al 1996. Majority of these strains showed poor degrading capability, particularly under high naphthalene concentrations ([200 mg/L) (Farjadfard et al 2012).…”

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confidence: 99%

Isolation of a Naphthalene-Degrading Strain from Activated Sludge and Bioaugmentation with it in a MBR Treating Coal Gasification Wastewater

Han

et al. 2014

Bull Environ Contam Toxicol

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A highly effective naphthalene-degrading bacterial strain was isolated from acclimated activated sludge from a coal gasification wastewater plant, and identified as a Streptomyces sp., designated as strain QWE-35. The optimal pH and temperature for naphthalene degradation were 7.0 and 35°C. The presence of additional glucose and methanol significantly increased the degradation efficiency of naphthalene. The strain showed tolerance to the toxicity of naphthalene at a concentration as great as 200 mg/L. The Andrews mode could be fitted to the degradation kinetics data well over a wide range of initial naphthalene concentrations (10-200 mg/L), with kinetic values q max = 0.84 h(-1), K s = 40.39 mg/L, and K i = 193.76 mg/L. Metabolic intermediates were identified by gas chromatography and mass spectrometry, allowing a new degradation pathway for naphthalene to be proposed for the first time. Strain QWE-35 was added into a membrane bioreactor (MBR) to enhance the treatment of real coal gasification wastewater. The results showed that the removal of chemical oxygen demand and total nitrogen were similar between bioaugmented and non-bioaugmented MBRs, however, significant removal of naphthalene was obtained in the bioaugmented reactor. The findings suggest a potential bioremediation role of Streptomyces sp. QWE-35 in the removal of naphthalene from wastewaters.

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Fungal biodegradation of naphthalene: microcosms studies

Cited by 68 publications

References 22 publications

Impact of basidiomycete fungi on the wettability of soil contaminated with a hydrophobic polycyclic aromatic hydrocarbon

Impact of basidiomycete fungi on the wettability of soil contaminated with a hydrophobic polycyclic aromatic hydrocarbon

Application of microchip‐CE electrophoresis to follow the degradation of phenolic acids by aquatic plants

Isolation of a Naphthalene-Degrading Strain from Activated Sludge and Bioaugmentation with it in a MBR Treating Coal Gasification Wastewater

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