Effect of cadmium ion on biodegradation of decabromodiphenyl ether (BDE-209) by Pseudomonas aeruginosa

Shi, Guangyu; Yin, Hua; Ye, Jinshao; Peng, Hui; Li, Jun; Luo, Chunling

doi:10.1016/j.jhazmat.2013.10.035

Cited by 45 publications

(16 citation statements)

References 31 publications

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“…N17-1 was identified as Pseudomonas aeruginosa . It has been reported that isolates from this species could degrade n -Alkanes and Polycyclic Aromatic Hydrocarbons, benzene, toluene, xylene, acephate, methamidophos, decabromodiphenyl ether and edible oils [ 23 , 24 , 25 , 26 , 27 ]. However, this is the first report indicating that the isolate of this species possesses the ability to degrade aflatoxin.…”

Section: Discussionmentioning

confidence: 99%

“…Results implied that a protein (enzyme) or proteins (enzymes) might be involved in the degradation by P. aeruginosa N17-1. Various enzymes produced by P. aeruginosa are involved in the catabolic pathways of aromatic compounds via a cascade of reactions [ 23 , 24 , 25 , 26 , 27 ]. AFB 1 is also a polyaromatic compound and could be degraded in a similar manner.…”

Section: Discussionmentioning

confidence: 99%

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Aflatoxin B1 Degradation by a Pseudomonas Strain

Sangare

Zhao

Folly

et al. 2014

Toxins

113

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Aflatoxin B1 (AFB1), one of the most potent naturally occurring mutagens and carcinogens, causes significant threats to the food industry and animal production. In this study, 25 bacteria isolates were collected from grain kernels and soils displaying AFB1 reduction activity. Based on its degradation effectiveness, isolate N17-1 was selected for further characterization and identified as Pseudomonas aeruginosa. P. aeruginosa N17-1 could degrade AFB1, AFB2 and AFM1 by 82.8%, 46.8% and 31.9% after incubation in Nutrient Broth (NB) medium at 37 °C for 72 h, respectively. The culture supernatant of isolate N17-1 degraded AFB1 effectively, whereas the viable cells and intra cell extracts were far less effective. Factors influencing AFB1 degradation by the culture supernatant were investigated. Maximum degradation was observed at 55 °C. Ions Mn2+ and Cu2+ were activators for AFB1 degradation, however, ions Mg2+, Li+, Zn2+, Se2+, Fe3+ were strong inhibitors. Treatments with proteinase K and proteinase K plus SDS significantly reduced the degradation activity of the culture supernatant. No degradation products were observed based on preliminary LC-QTOF/MS analysis, indicating AFB1 was metabolized to degradation products with chemical properties different from that of AFB1. The results indicated that the degradation of AFB1 by P. aeruginosa N17-1 was enzymatic and could have a great potential in industrial applications. This is the first report indicating that the isolate of P. aeruginosa possesses the ability to degrade aflatoxin.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Aflatoxin B1 Degradation by a Pseudomonas Strain

Sangare

Zhao

Folly

et al. 2014

Toxins

113

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“…Transport and biodegradation were metabolically mediated activities , thus it is critical to determine the relation between biodegradation and cellular responses. Previous researches have shown that the toxicity of organic compounds influenced cell surface hydrophobicity (CSH) (Kaczorek et al, 2010), membrane permeability (Shi et al, 2013) and cell activity (Chen et al, 2014) during biodegradation. However, the influence of organic compounds on cell growth cycle, cell viability, cell size and internal granule which directly represented cellular characteristics during pollutant degradation process is still poorly understood.…”

Section: Introductionmentioning

confidence: 99%

Biosorption and biodegradation of pyrene by Brevibacillus brevis and cellular responses to pyrene treatment

Liao

Chen

Peng

et al. 2015

Ecotoxicology and Environmental Safety

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“…For example, Shi et al. used P. aeruginosa to degrade BDE‐209 and the results showed excellent effect (Shi et al., ). But, several studies have reported that the presence of Cu 2+ has influence on BDE‐209 biodegradation.…”

Section: Introductionmentioning

confidence: 99%

“…Pseudomonas aeruginosa, capable of degrading BDE-209, has great potential for bioremediation application in e-waste-contaminated soils. For example, Shi et al used P. aeru-ginosa to degrade BDE-209 and the results showed excellent effect (Shi et al, 2013). But, several studies have reported that the presence of Cu 2+ has influence on BDE-209 biodegradation.…”

mentioning

confidence: 99%

Effect of copper ion and soil humic acid on biodegradation of decabromodiphenyl ether (BDE‐209) by Pseudomonas aeruginosa

et al. 2017

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Pseudomonas aeruginosa is a good environmental microorganism capable of degrading decabromodiphenyl ether (BDE‐209). This paper studied the effect of Cu2+ and humic acid (HA) extracted from e‐waste contaminated soils on biodegradation of BDE‐209 by P. aeruginosa. The adsorption isotherms of Cu2+ on HA, the crude enzyme activity, cell surface morphology, and biodegradation pathway were also investigated. The results showed that BDE‐209 biodegradation by P. aeruginosa was inhibited at Cu2+ concentrations above 5 mg L−1, but exhibited the best effect at the condition of 40 mg L−1 Cu2+ + 3 g L−1 HA. At the condition of 40 mg L−1 Cu2+ + 3 g L−1 HA, 97.35 ± 2.33% of the initial BDE‐209 was degraded after 5 days, debromination efficiency was 72.14 ± 1.89%, crude enzyme activity reached the maximum of 0.519 ± 0.022U g−1 protein, cell surface of P. aeruginosa was smooth with normal short‐rod shapes, and biodegradation pathway mainly include debromination, hydroxylation, and cleavage of the diphenyl ether bond. It was suggested that soil HA could eliminate the toxic effect of high Cu2+ concentrations and biodegradation of BDE‐209 was improved by synergistic effect of HA and Cu2+.

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Effect of cadmium ion on biodegradation of decabromodiphenyl ether (BDE-209) by Pseudomonas aeruginosa

Cited by 45 publications

References 31 publications

Aflatoxin B1 Degradation by a Pseudomonas Strain

Aflatoxin B1 Degradation by a Pseudomonas Strain

Biosorption and biodegradation of pyrene by Brevibacillus brevis and cellular responses to pyrene treatment

Effect of copper ion and soil humic acid on biodegradation of decabromodiphenyl ether (BDE‐209) by Pseudomonas aeruginosa

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