Pseudomonas C12B, an SDS degrading strain, harbours a plasmid coding for degradation of medium chain length n-alkanes

Košťál, Jan; Suchánek, Miloslav; Klierova, Hana; Demnerova, Kateřina; Králová, Blanka; McBeth, Dani L.

doi:10.1016/s0964-8305(98)00053-5

Cited by 27 publications

(7 citation statements)

References 27 publications

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“…Two other plasmid systems have been partially characterized: the OCT plasmid in Pseudomonas maltophilia has an alkA gene distinct from that of P. putida (374), and the unique pDEC plasmid in Pseudomonas sp. strain C12B (347).…”

Section: Aerobic Alkane Metabolismmentioning

confidence: 99%

Recent Advances in Petroleum Microbiology

Hamme¹,

Singh

Ward

2003

Microbiol Mol Biol Rev

1,201

640

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Recent advances in molecular biology have extended our understanding of the metabolic processes related to microbial transformation of petroleum hydrocarbons. The physiological responses of microorganisms to the presence of hydrocarbons, including cell surface alterations and adaptive mechanisms for uptake and efflux of these substrates, have been characterized. New molecular techniques have enhanced our ability to investigate the dynamics of microbial communities in petroleum-impacted ecosystems. By establishing conditions which maximize rates and extents of microbial growth, hydrocarbon access, and transformation, highly accelerated and bioreactor-based petroleum waste degradation processes have been implemented. Biofilters capable of removing and biodegrading volatile petroleum contaminants in air streams with short substrate-microbe contact times (<60 s) are being used effectively. Microbes are being injected into partially spent petroleum reservoirs to enhance oil recovery. However, these microbial processes have not exhibited consistent and effective performance, primarily because of our inability to control conditions in the subsurface environment. Microbes may be exploited to break stable oilfield emulsions to produce pipeline quality oil. There is interest in replacing physical oil desulfurization processes with biodesulfurization methods through promotion of selective sulfur removal without degradation of associated carbon moieties. However, since microbes require an environment containing some water, a two-phase oil-water system must be established to optimize contact between the microbes and the hydrocarbon, and such an emulsion is not easily created with viscous crude oil. This challenge may be circumvented by application of the technology to more refined gasoline and diesel substrates, where aqueous-hydrocarbon emulsions are more easily generated. Molecular approaches are being used to broaden the substrate specificity and increase the rates and extents of desulfurization. Bacterial processes are being commercialized for removal of H2S and sulfoxides from petrochemical waste streams. Microbes also have potential for use in removal of nitrogen from crude oil leading to reduced nitric oxide emissions provided that technical problems similar to those experienced in biodesulfurization can be solved. Enzymes are being exploited to produce added-value products from petroleum substrates, and bacterial biosensors are being used to analyze petroleum-contaminated environments

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Section: Aerobic Alkane Metabolismmentioning

confidence: 99%

Recent Advances in Petroleum Microbiology

Hamme¹,

Singh

Ward

2003

Microbiol Mol Biol Rev

1,201

640

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show abstract

“…Biodegradation of anionic surfactant under aerobic conditions by the bacterium Pseudomonas sp. strain C12B was among the first to be studied (Payne and Feisal 1963), and to date quite a number of SDS-degrading bacteria have been isolated and characterized (Thomas and White 1990;Lee et al 1995;Kostal et al 1998;Roig et al 1998;Dhouib et al 2003;Ke et al 2003;Yin et al 2005;Wu 2006;Khleifat et al 2010;Asok and Jisha 2013;Kumar 2013,2014;Cortés-Lorenzo et al 2013;Venkatesh 2013;Yilmaz and Icgen 2014). Works on coldadapted microbes with ability to degrade SDS are rare, and were first reported by Margesin and Schinner (1998).The existence of multitude of bacteria with detergent-degrading ability makes bioremediation the more ideal method for detergent degradation.…”

Section: Detergents and Hydrocarbons As Electron Donor Sources For Momentioning

confidence: 99%

Isolation and characterization of a molybdenum-reducing and SDSdegrading Klebsiella oxytoca strain Aft-7 and its bioremediation application in the environment

Masdor¹,

Shukor²,

Khan

et al. 2015

Biodiversitas

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Pollution as a result of anthropogenic activities is a severe global issue. These activities including inappropriate disposal, industrial and prospecting activities and unnecessary use of agricultural chemicals have triggered international initiatives to eliminate these contaminants. In this work we screen the ability of a molybdenum-reducing bacterium isolated from contaminated soil to grow and reduce molybdenum on various detergents. The bacterium was able to grow on SDS as a carbon source although the compound did not support molybdenum reduction. The bacterium reduces molybdate to Mo-blue optimally between pH 5.8 and 6.3 and between 25 and 34 o C. Glucose was the best electron donor for supporting molybdate reduction followed by sucrose, D-mannitol, D-sorbitol, lactose, salicin, trehalose, maltose and myo-Inositol in descending order. Other requirements include a phosphate concentration between 5.0 and 7.5 mM and a molybdate concentration between 5 and 20 mM. The absorption spectrum of the Mo-blue produced was similar to previous Mo-reducing bacterium, and closely resembles a reduced phosphomolybdate. Molybdenum reduction was inhibited by mercury (ii), silver (i) and copper (ii) at 2 ppm by 62.1, 33.9 and 33.6%, respectively. Biochemical analysis resulted in a tentative identification of the bacterium as Klebsiella oxytoca strain Aft-7. The ability of this bacterium to detoxify molybdenum and degrade detergent makes this bacterium an important tool for bioremediation.

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“…Pseudomonas is a genus of high biotechnological interest and the capacity of this group for the degradation of xenobiotics is widely documented in the literature [5,6,24,32,35,37,43]. A previous study conducted in Ria de Aveiro showed that Pseudomonads represent 34.5% of the culturable fraction of naphthalene-degrading bacterioneuston of the SML of the Ria de Aveiro [14].…”

Section: Pseudomonads Among Surfactant-resistant Bacterioneuston Isolmentioning

confidence: 99%

Isolation of Surfactant-Resistant Pseudomonads from the Estuarine Surface Microlayer

Louvado

Coelho²,

Domingues³

et al. 2012

J. Microbiol. Biotechnol.

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Pseudomonas C12B, an SDS degrading strain, harbours a plasmid coding for degradation of medium chain length n-alkanes

Cited by 27 publications

References 27 publications

Recent Advances in Petroleum Microbiology

Recent Advances in Petroleum Microbiology

Isolation and characterization of a molybdenum-reducing and SDSdegrading Klebsiella oxytoca strain Aft-7 and its bioremediation application in the environment

Isolation of Surfactant-Resistant Pseudomonads from the Estuarine Surface Microlayer

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