title: [Physiological characteristics of Salmonella typhimurium treated with penicillin].
abstract: Growing bacteria of the two strains of Salmonella typhimurium differing in the sensitivity levels to UV-light formed multinuclear non-septal filaments in the penicillin-containing nutrient medium. The maximum number of the lifefull filaments was formed by the 4th hour of incubation in the beaf-peptone broth at a temperature of 37 degrees C in the presence of 5 gamma/ml of penicillin. The strains exposed to penicillin were less sensitive to UV-light. Exclusion of penicillin from the nutrient medium resulted in a new division of the filamentous cells and reduction of the initial UV-light sensitivity level. It was concluded that the low UV-light sensitivity level of the filaments induced by penicillin was associated with their multinuclear state.
mesh_terms: D003470:Culture Media; D010400:Penicillin G / Q000494:pharmacology*; D011836:Radiation Tolerance; D012486:Salmonella typhimurium / Q000187:drug effects* / Q000502:physiology / Q000528:radiation effects; D013696:Temperature; D013997:Time Factors; D014466:Ultraviolet Rays
chemical_list: D003470:Culture Media; D010400:Penicillin G
vernacular_title: Fiziologicheskie osobennosti Salmonella typhimurium pri obrabotke penitsillinom.