PCB metabolism by Pseudomonas sp. P2

Nováková, Hana; Vosahlikova, Miluse; Pazlarová, J.; Macková, Martina; Burkhard, J.; Demnerová, Kateřina

doi:10.1016/s0964-8305(02)00058-6

Cited by 26 publications

(13 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The mean values measured in upland and forest areas were slightly higher than those measured in paddy and wasteland areas, with paddy soils showing the lowest concentrations. Alternating anaerobic and aerobic conditions in paddy soils may have promoted the degradation of PCBs (Novakova et al 2002). In this region, even in the Yangtze River Delta, rotations of rice and wheat or corn are the main agricultural cropping systems.…”

Section: Resultsmentioning

confidence: 99%

Distribution patterns of polychlorinated biphenyls in soils collected from Zhejiang province, east China

Gao

Luo

et al. 2006

Environ Geochem Health

View full text Add to dashboard Cite

Polychlorinated biphenyls (PCBs) were determined in surface soil samples from Zhejiang Province, east China. Concentrations of total PCBs ranged widely from 7.50 to 263 ng kg(-1) with a mean value of 45.4 ng kg(-1) (dry matter basis). In general, concentrations in soil samples from the southern part of the test area and especially from some sites near hills tended to be higher than those from other sites. The prevailing winds may have been the main factor influencing the spatial distribution of PCBs in soils. Other factors may have included the distribution of residential areas and land use variables. In this paper we also discuss the relationships between OCPs and PCBs in soils and relationships between these and land use variables as revealed by correlation analysis.

show abstract

Section: Resultsmentioning

confidence: 99%

Distribution patterns of polychlorinated biphenyls in soils collected from Zhejiang province, east China

Gao

Luo

et al. 2006

Environ Geochem Health

View full text Add to dashboard Cite

show abstract

“…Many known aerobic PCB-degraders are Proteobacteria (e.g. Pseudomonas , Sphingomonas, Acinetobacter , Comamonas and Burkholderia (Nováková et al 2002)), thus it is possible that these same groups could participate in aerobic PCB degradation in the soil microcosms. In a previous study, we quantified the biphenyl dioxygenase alpha subunit gene ( bphA ) from the UP and SG microcosms (Liang et al 2014b).…”

Section: Discussionmentioning

confidence: 99%

Microbial community analysis of switchgrass planted and unplanted soil microcosms displaying PCB dechlorination

Liang

Meggo

et al. 2015

Appl Microbiol Biotechnol

View full text Add to dashboard Cite

Polychlorinated biphenyls (PCBs) pose potential risks to human and environmental health because they are carcinogenic, persistent and bioaccumulative. In this study we investigated bacterial communities in soil microcosms spiked with PCB 52, 77 and 153. Switchgrass (Panicum virgatum) was employed to improve overall PCB removal and redox cycling (i.e. sequential periods of flooding followed by periods of no flooding) was performed in an effort to promote PCB dechlorination. Lesser chlorinated PCB transformation products were detected in all microcosms, indicating the occurrence of PCB dechlorination. Terminal restriction fragment length polymorphism (T-RFLP) and clone library analysis showed that PCB spiking, switchgrass planting and redox cycling affected the microbial community structure. Putative organohalide-respiring Chloroflexi populations, which were not found in unflooded microcosms, were enriched after two weeks of flooding in the redox-cycled microcosms. Sequences classified as Geobacter sp. were detected in all microcosms, and were most abundant in the switchgrass-planted microcosm spiked with PCB congeners. The presence of possible organohalide-respiring bacteria in these soil microcosms suggests they play a role in PCB dechlorination therein.

show abstract

“…Pathway of aerobic PCB degradation by biphenyl oxidizing bacteria (Novakovaet al, 2002; Bedard, D.L., 2003; Pieper, D.H., 2005). (I) biphenyl, (II) 2; 3-dihydroxy-4-phenylhexa-4; 6-diene, (III) 2; 3-dihydroxybiphenyl, (IV) 2-hydroxy-6-oxo-6-phenylhea-2; 4-dienoic acid, (V) chlorobenzoic acid, (VI) 2-hydroxypenta-2; 4-dienoic acid.…”

Section: Figurementioning

confidence: 99%

Advances and perspective in bioremediation of polychlorinated biphenyl-contaminated soils

Sharma

Gautam

Nanekar

et al. 2017

Environ Sci Pollut Res

View full text Add to dashboard Cite

In recent years, microbial degradation and bioremediation approaches of polychlorinated biphenyls (PCBs) have been studied extensively considering their toxicity, carcinogenicity and persistency potential in the environment. In this direction, different catabolic enzymes have been identified and reported for biodegradation of different PCB congeners along with optimization of biological processes. A genome analysis of PCB-degrading bacteria has led in an improved understanding of their metabolic potential and adaptation to stressful conditions. However, many stones in this area are left unturned. For example, the role and diversity of uncultivable microbes in PCB degradation are still not fully understood. Improved knowledge and understanding on this front will open up new avenues for improved bioremediation technologies which will bring economic, environmental and societal benefits. This article highlights on recent advances in bioremediation of PCBs in soil. It is demonstrated that bioremediation is the most effective and innovative technology which includes biostimulation, bioaugmentation, phytoremediation and rhizoremediation and acts as a model solution for pollution abatement. More recently, transgenic plants and genetically modified microorganisms have proved to be revolutionary in the bioremediation of PCBs. Additionally, other important aspects such as pretreatment using chemical/physical agents for enhanced biodegradation are also addressed. Efforts have been made to identify challenges, research gaps and necessary approaches which in future, can be harnessed for successful use of bioremediation under field conditions. Emphases have been given on the quality/efficiency of bioremediation technology and its related cost which determines its ultimate acceptability.

show abstract

PCB metabolism by Pseudomonas sp. P2

Cited by 26 publications

References 26 publications

Distribution patterns of polychlorinated biphenyls in soils collected from Zhejiang province, east China

Distribution patterns of polychlorinated biphenyls in soils collected from Zhejiang province, east China

Microbial community analysis of switchgrass planted and unplanted soil microcosms displaying PCB dechlorination

Advances and perspective in bioremediation of polychlorinated biphenyl-contaminated soils

Contact Info

Product

Resources

About