title: Fatty Acids Composition and Biofilm Production of Attenuated Salmonella typhimurium dam and seqA Mutants After Exposure to UV-C.
abstract: The goal of this work was the investigation of correlation between some peculiarities of membrane fatty acids composition, biofilm formation, and motility of dam and/or seqA mutants in Salmonella typhimurium bacterial cells and UV-C radiations. The exposure changed the fatty acids composition of dam and seqA/dam strains. Significant increase of unsaturated fatty acids was observed. Swarming and swimming were enhanced only in dam mutant and biofilm formation increased significantly in all tested strains after UV-C exposure. These results suggest that increased sensitivity toward UV-C rays in dam strains might be due to fatty acid alteration.
authors.affiliation: Wastewater Treatment Laboratory, Water Research and Technology Center, Ecopark Borj-Cedria, Soliman, Tunisia, chattiabdel@yahoo.fr.
authors.forename: Chatti
authors.initials: C
authors.lastname: Abdelwaheb
authors.forename: Maalej
authors.initials: M
authors.lastname: Lobna
authors.forename: BelHadj Abdallah
authors.initials: BA
authors.lastname: Bouchra
authors.forename: Kloula
authors.initials: K
authors.lastname: Selma
authors.forename: Landoulsi
authors.initials: L
authors.lastname: Ahmed
mesh_terms: D001425:Bacterial Outer Membrane Proteins / Q000235:genetics; D018441:Biofilms / Q000254:growth & development*; D003600:Cytosol / Q000737:chemistry; D004268:DNA-Binding Proteins / Q000235:genetics; D005227:Fatty Acids / Q000032:analysis*; D008124:Locomotion; D009154:Mutation; D012486:Salmonella typhimurium / Q000737:chemistry / Q000472:pathogenicity / Q000502:physiology* / Q000528:radiation effects*; D015265:Site-Specific DNA-Methyltransferase (Adenine-Specific) / Q000235:genetics; D014466:Ultraviolet Rays
chemical_list: D001425:Bacterial Outer Membrane Proteins; D004268:DNA-Binding Proteins; D005227:Fatty Acids; C058693:Dam methyltransferase; D015265:Site-Specific DNA-Methyltransferase (Adenine-Specific)