ISSN 2736-1756
Advanced Journal of Microbiology Research ISSN 2241-9837 Vol. 14 (5), pp. 001-006, May, 2020. © International Scholars Journals
Full Length Research Paper
Effect of ultraviolet, electromagnetic radiation subtype C (UV-C) dose on biofilm formation by Pseudomonas aeruginosa
Myriam BEN SAID*, Sana KHEFACHA, Lobna MAALEJ, Imen DALY and Abdennaceur HASSEN
Water Treatment and Recycling Laboratory (LTRE); Water Research and Technologies Centre (CERTE). Borj-Cedria, BP 273, Tunis 8020, Tunisia.
Accepted 25 August, 2019
Abstract
Pseudomonas aeruginosa is a commonly found nosocomial opportunistic pathogen that is characterized by its ability to form biofilm to protect itself from various external pressures. Biofilms are problematic in particular food industry sectors and in water distribution systems. In this study, we propose to explore the impact of UVC dose on biofilm production by P. aeruginosa strains. The biofilms densities were assessed by crystal violet assay. A relationship between UVC exposed dose and biofilm density was examined by establishment of new model linking between UVC dose and physiology bacteria response concerning biofilm production (UVC dose/ biofilm production).
Key words: UVC dose, biofilm, P. aeruginosa, quorum sensing, RecA, model.