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Your search keyword '"Organic solvents -- Physiological aspects"' showing total 3 results
Start Over Descriptor "Organic solvents -- Physiological aspects" Journal journal of bacteriology
3 results on '"Organic solvents -- Physiological aspects"'

1. Three efflux pumps are required to provide efficient tolerance to toluene in Pseudomonas putida DOT-T1E

Author

Rojas, Antonia, Duque, Estrella, Mosqueda, Gilberto, Golden, Geir, Hurtado, Ana, Ramos, Juan L., and Segura, Ana

Subjects
Pseudomonas putida -- Research, Organic solvents -- Physiological aspects, Extrusion process -- Physiological aspects, Biological sciences
Abstract

Research describes the existence of an additional multidrug efflux pump TtgGHI besides the two previously known TtgABC and TtgDEF, which mediate solvent resistance in Pseudomonas putida DOT-T1E. Results show that while TtgABC and TtgGHI pumps remove toluene, styrene, m-xylene, ethylbenzene, and propylbenzene, TtgDEF removes only toluene and styrene.

Published
2001

2. Entry into and release of solvents by Escherichia coli in an organic-aqueous two-liquid-phase system and substrate specificity of the AcrAB-TolC solvent-extruding pump

Author

Tsukagoshi, Norihiko and Aono, Rikizo

Subjects
Escherichia coli -- Physiological aspects, Organic solvents -- Physiological aspects, Biological transport -- Physiological aspects, Cell culture -- Physiological aspects, Biological sciences
Abstract

Results suggest that the AcrAB-TolC efflux pump extrudes solvents in the range of 3.4 to 6.0 of log P(sub)OW and at higher than 4.4, the solvents are retarded. Data indicate that octane, heptane, and n-hexane are preferred substrates for the efflux system.

Published
2000

3. Role of the multidrug efflux systems of Pseudomonas aeruginosa in organic solvent tolerance

Author

Li, Xian-Zhi, Zhang, Li, and Poole, Keith

Subjects
Pseudomonas aeruginosa -- Genetic aspects, Organic solvents -- Physiological aspects, Gene mutations -- Research, Immunological tolerance -- Analysis, Biological sciences
Abstract

The participation of multidrug efflux systems of Pseudomonas aeruginosa in organic solvent tolerance was investigated using genetically defined efflux pump mutants. The findings demonstrated that the three efflux systems, namely MexE-MexF-OprN, MexC-MexD-OprJ and MexA-MexB-OprM, induce tolerance for such organic solvents as p-xylene and n-hexane. The expression of MexAB-OprM was associated with the maximum tolerance level and was a factor in the intrinsic solvent tolerance of the microorganism.

Published
1998

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