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RESEARCH PRODUCT
The effect of organic solvents on selected microorganisms and model liposome membrane
Gabriela DyrdaKatarzyna BarchiewiczEwa Boniewska-bernackaRudolf SłotaDariusz Mansubject
0301 basic medicinefood.ingredientPhospholipidLecithin03 medical and health scienceschemistry.chemical_compound0302 clinical medicinefoodElectron paramagnetic resonance (EPR)GeneticsAcetoneMembrane fluidityorganic solventsOrganic ChemicalsMolecular BiologyChromatographyBacteriaMolecular StructureDimethyl sulfoxideCell MembraneElectron Spin Resonance SpectroscopyGeneral MedicineYeastSolvent030104 developmental biologyMembranechemistryNujol030220 oncology & carcinogenesisLiposomesSolventsdescription
The effect of methanol, ethanol, acetone, N,N-dimethylformamide (DMF), dimethyl sulfoxide and Nujol on the growth of Escherichia coli DH5α, Bacillus subtilis and Saccharomyces cerevisiae D273 was investigated. All of the tested cultures appeared susceptible to the organic media they were treated with, which evinced in apparent hindering of cell development. The observed diverse solvent tolerance, except from their different biochemical activity, may also be related to the changes in cell membrane fluidity induced by the solvent species. Parallel electron paramagnetic resonance investigations using egg yolk lecithin model liposomes revealed that the fluidity of the phospholipid system in cell membranes may either be considerably decreased (Nujol, DMF, ethanol) or increased (acetone), thus rendering difficult the intracellular nutrient supply. Hence, even the chemically neutral Nujol produced a distinct cell-growth inhibitory effect. These results are fairly consistent with the outcome of the survival tests, particularly for the bacteria strains.
year | journal | country | edition | language |
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2019-04-01 | Molecular Biology Reports |