Abstract:
:Pseudomonas sp. strain WBC-3 utilizes para-nitrophenol (PNP) as a sole source of carbon, nitrogen and energy. PnpA (PNP 4-monooxygenase) and PnpB (para-benzoquinone reductase) were shown to be involved in the initial steps of PNP catabolism via hydroquinone. We demonstrated here that PnpA also catalyzed monooxygenation of 4-nitrocatechol (4-NC) to hydroxyquinol, probably via hydroxyquinone. It was the first time that a single-component PNP monooxygenase has been shown to catalyze this conversion. PnpG encoded by a gene located in the PNP degradation cluster was purified as a His-tagged protein and identified as a hydroxyquinol dioxygenase catalyzing a ring-cleavage reaction of hydroxyquinol. Although all the genes necessary for 4-NC metabolism seemed to be present in the PNP degradation cluster in strain WBC-3, it was unable to grow on 4-NC as a sole source of carbon, nitrogen and energy. This was apparently due to the substrate's inability to trigger the expression of genes involved in degradation. Nevertheless, strain WBC-3 could completely degrade both PNP and 4-NC when PNP was used as the inducer, demonstrating its potential in bioremediation of the environment polluted by both 4-NC and PNP.
journal_name
Biodegradationjournal_title
Biodegradationauthors
Wei M,Zhang JJ,Liu H,Zhou NYdoi
10.1007/s10532-010-9351-2subject
Has Abstractpub_date
2010-11-01 00:00:00pages
915-21issue
6eissn
0923-9820issn
1572-9729journal_volume
21pub_type
杂志文章相关文献
BIODEGRADATION文献大全abstract::The biosorption equilibrium isotherms of Ni(II) onto marine brown algae Lobophora variegata, which was chemically-modified by CaCl(2) were studied and modeled. To predict the biosorption isotherms and to determine the characteristic parameters for process design, twenty-three one-, two-, three-, four- and five-paramet...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-010-9333-4
更新日期:2010-09-01 00:00:00
abstract::A kinetic model to describe the degradation of phenol and cometabolic transformation of 4-chlorophenol (4-cp) in the presence of sodium glutamate (SG) has been developed and validated experimentally. The integrated model accounts for cell growth, toxicity of 4-cp, cross-inhibitions among the three substrates, and the ...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1023/a:1013170322269
更新日期:2001-01-01 00:00:00
abstract::Bacterial yield prediction is critical for bioprocess optimization and modeling of natural biological systems. In previous work, an expanded thermodynamic true yield prediction model was developed through incorporating carbon balance and nitrogen balance along with electron balance and energy balance. In the present w...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-007-9119-5
更新日期:2008-02-01 00:00:00
abstract::A highly enriched denitrifying mixed culture transformed o-xylene co-metabolically along with toluene by methyl group oxidation. o-Methyl benzaldehyde and o-methyl benzoic acid accumulated transiently as metabolic products of o-xylene transformation. Transformation of o-methyl benzyl alcohol and o-methyl benzaldehyde ...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/BF00695344
更新日期:1995-06-01 00:00:00
abstract::Pyridine and pyridine based products are of major concern as environmental pollutants due to their recalcitrant, persistent, toxic and teratogenic nature. In this study, we describe biodegradation of pyridine by an isolated consortium/strain under aerobic condition. Batch experiment results reveal that at lower initia...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-008-9176-4
更新日期:2008-09-01 00:00:00
abstract::This study investigated the acclimation potential of batch fed anaerobic biomass with salinities of 0-50 gNaCl l(-1). Anaerobic biomass was acclimatized to salinities up to 20 gNaCl l(-1)over a period of 35 days, with 3 consecutive feedings. After this period the biomass was subjected to non-saline conditions to simul...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-008-9210-6
更新日期:2009-04-01 00:00:00
abstract::The potential toxicity of the s-triazine herbicide atrazine motivates continuous bioremediation-directed research. Several indigenous soil atrazine-catabolizing microbial associations and monocultures have been enriched/isolated from compromised sites. Of these, Pseudomonas sp. strain ADP has become a reference strain...
journal_title:Biodegradation
pub_type: 杂志文章,评审
doi:10.1023/a:1016329628618
更新日期:2002-01-01 00:00:00
abstract::This work is focused on the evaluation of a beta-cyclodextrin polymer as a carrier medium in a fluidized bed bioreactor treating aqueous phenol as a model pollutant. The insoluble polymer support was obtained in the shape of spherical beads by crosslinking beta-cyclodextrin with epichlorohydrin. A batch of swollen pol...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-007-9164-0
更新日期:2008-07-01 00:00:00
abstract::Ethanol is a renewable biofuel, and it can be produced from lignocellulosic biomass. The biomass is usually converted to hydrolysates that consist of sugar and sugar derivatives, such as furfural. Yeast ferments sugar to ethanol, but furfural higher than 3 mM is inhibitory. It can take several days for yeast cells to ...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-011-9476-y
更新日期:2011-11-01 00:00:00
abstract::A Gram-positive, Micrococcus sp. strain PS-1 capable of utilizing phenylurea herbicide diuron as a sole carbon source at a high concentration (up to 250 ppm) was isolated from diuron storage site by selective enrichment study. The taxonomic characterization with 16S rRNA gene sequencing (1,477 bp) identified PS-1 as a...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-010-9357-9
更新日期:2010-11-01 00:00:00
abstract::The performance of diesel oil degradation by Candida tropicalis immobilized on various conventional matrices (sodium alginate, carboxyl methyl cellulose, chitosan) and biowaste materials (wheat bran, sawdust, peanut hull powder) was investigated using the method of entrapment and physical adsorption. The yeast species...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-011-9473-1
更新日期:2011-11-01 00:00:00
abstract::The biodegradation of rubber particles in rubber-soil mixtures at different rubber contents was monitored by the carbon dioxide production. The cumulative carbon dioxide production was modelled according to a two parameter exponential function. The model provides an excellent fit (R2 > 0.98) for the observed data. The...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/BF00115746
更新日期:1996-08-01 00:00:00
abstract::The use of anaerobic processes to treat low-strength wastewater has been increasing in recent years due to their favourable performance-costs balance. For optimal results, it is necessary to identify reactor configurations that are best suited for this kind of application. This paper reports on the comparative study c...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-010-9339-y
更新日期:2010-09-01 00:00:00
abstract::The performance of an Arthrobacter viscosus culture to remove diethylketone from aqueous solutions was evaluated. The effect of initial concentration of diethylketone on the growth of the bacteria was evaluated for the range of concentration between 0 and 4.8 g/l, aiming to evaluate a possible toxicological effect. Th...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-011-9488-7
更新日期:2012-02-01 00:00:00
abstract::A novel bacterial species identified as Exiguobacterium sp. RD3 degraded the diazo dye reactive yellow 84A (50 mg l(-1)) within 48 h at static condition, at 30 degrees C and pH 7. Lower salinity conditions were found to be favorable for growth and decolorization. Enzymatic activities of an H(2)O(2) independent oxidase...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-008-9217-z
更新日期:2009-04-01 00:00:00
abstract::A field-scale fixed bed bioreactor was used to successfully treat an MTBE-contaminated aquifer in North Hollywood, CA without requiring inoculation with introduced bacteria. Native bacteria from the MTBE-impacted aquifer rapidly colonized the bioreactor, entering the bioreactor in the contaminated groundwater pumped f...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-013-9639-0
更新日期:2014-02-01 00:00:00
abstract::Monoterpenes are important renewable resources for the perfume and flavour industry but the pathways and enzymology of their degradation by microorganisms are not well documented. Until recently the acyclic monoterpene alcohols, (+)-camphor and the isomers of limonene were the only compounds for which significant sect...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/BF00058829
更新日期:1990-01-01 00:00:00
abstract::The performance of a field-scale biotrickling filter (BTF) in the removal of waste gases containing low concentrations of mixed volatile organic compounds was evaluated. Results showed that acetone and methyl ethyl ketone (MEK) were more easily removed than toluene and styrene. The removal efficiency for acetone and M...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-011-9497-6
更新日期:2012-02-01 00:00:00
abstract::The objectives of this paper are to review the wide range of kinetic models that have been introduced to describe the cometabolic oxidation of chlorinated solvents, to compare modeling approaches and associated experimental data, and to discuss knowledge gaps in the general topic of cometabolism kinetics. To begin, a ...
journal_title:Biodegradation
pub_type: 杂志文章,评审
doi:10.1023/a:1012075322466
更新日期:2001-01-01 00:00:00
abstract::Treatment of oil sands process-affected water (OSPW) using biodegradation has the potential to be an environmentally sound approach for tailings water reclamation. This process is both economical and efficient, however, the recalcitrance of some OSPW constituents, such as naphthenic acids (NAs), require the pre-treatm...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-014-9701-6
更新日期:2014-11-01 00:00:00
abstract::Carbon supplementation, soil moisture and soil aeration are believed to enhance in situ bioremediation of PAH-contaminated soils by stimulating the growth of indigenous microorganisms. However, the effects of added carbon and nitrogen together with soil moisture and soil aeration on the dissipation of PAHs and on asso...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-009-9291-x
更新日期:2010-04-01 00:00:00
abstract::Denitrifying granular sludge reactor holds better nitrogen removal efficiency than other kinds of denitrifying reactors, while this reactor commonly needs seeding anaerobic granular sludge and longer period for start-up in practice, which restricted the application of denitrifying granular sludge reactor. This study p...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-018-9851-z
更新日期:2018-12-01 00:00:00
abstract::This study examined the biodegradation of natural rubber (NR) and deproteinized natural rubber (DPNR) by bacterial consortia enriched from a rubber-processing factory's waste in Vietnam. The results reveal the degradation in both NR and DPNR, and the DPNR was degraded easier than NR. The highest weight loss of 48.37% ...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-020-09911-0
更新日期:2020-12-01 00:00:00
abstract::The aerobic bacterial degradation of chloroaromatic compounds often involves chlorosubstituted catechols as central intermediates. They are converted to 3-oxoadipate in a series of reactions similar to that for catechol catabolism and therefore designated as modified ortho-cleavage pathway. Among the enzymes of this c...
journal_title:Biodegradation
pub_type: 杂志文章,评审
doi:10.1007/BF00696467
更新日期:1994-12-01 00:00:00
abstract::In this paper, Fourier Transform infrared spectroscopy (FTIR) along with thermogravimetric analysis together with mass spectrometry (TG-MS analysis) were employed to study the organic matter transformation attained under anaerobic digestion of slaughterhouse waste and to establish the stability of the digestates obtai...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-009-9322-7
更新日期:2010-07-01 00:00:00
abstract::Field experiments were conducted to assess the potential for anaerobic biostimulation to enhance BTEX biodegradation under fermentative methanogenic conditions in groundwater impacted by a biodiesel blend (B20, consisting of 20 % v/v biodiesel and 80 % v/v diesel). B20 (100 L) was released at each of two plots through...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-012-9589-y
更新日期:2013-06-01 00:00:00
abstract::Performance stability is a key issue when managing anaerobic digesters. However it can be affected by external disturbances caused by micropollutants. In this study the influence of phenol on the methanization of cellulose was evaluated through batch toxicity assays. Special attention was given to the dynamics of micr...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-015-9751-4
更新日期:2016-02-01 00:00:00
abstract::Hydroxyquinol, a common metabolite of aromatic compounds, is readily auto-oxidized to hydroxyquinone. Enzymatic activities that metabolized hydroxyquinone were observed from the cell extracts of Sphingobium chlorophenolicum ATCC 39723. An enzyme capable of transforming hydroxyquinone was partially purified, and its ac...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-004-2058-5
更新日期:2005-08-01 00:00:00
abstract::The objective of the present work was to analyze the interrelationship between the aerobic degradation of BPA and readily biodegradable substrates by activated sludge (AS) in semi-continuous reactors (SCRs). AS were obtained from three SCRs fed with glucose, acetate or peptone. AS from these reactors were used as inoc...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-018-9854-9
更新日期:2018-12-01 00:00:00
abstract::The dissipation of atrazine, chlorpyrifos and iprodione in a biopurification system and changes in the microbial and some biological parameters influenced by the rhizosphere of Lolium perenne were studied in a column system packed with an organic biomixture. Three column depths were analyzed for residual pesticides, p...
journal_title:Biodegradation
pub_type: 杂志文章
doi:10.1007/s10532-017-9804-y
更新日期:2017-12-01 00:00:00