Biomaterial Database

Mutation of Pseudomonas aeruginosa to piperacillin resistance mediated by beta-lactamase production. 1985

S M Bell, and J N Pham, and J Y Lanzarone

Piperacillin-resistant mutants were detected in each of ten strains of Pseudomonas aeruginosa. The resistance was associated with constitutive production by the strains of high levels of beta-lactamase which was similar in character to the induced chromosomal Id beta-lactamase of the parent strains. This type of mutation to piperacillin-resistance occurred at a low frequency. The beta-lactamase production and piperacillin-resistance were stable on repeated subculture and prolonged storage of the strains.

UI	MeSH Term	Description	Entries
D009154	Mutation	Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.	Mutations
D010403	Penicillin Resistance	Nonsusceptibility of an organism to the action of penicillins.	Penicillin Resistances,Resistance, Penicillin,Resistances, Penicillin
D010878	Piperacillin	Semisynthetic, broad-spectrum, AMPICILLIN derived ureidopenicillin antibiotic proposed for PSEUDOMONAS infections. It is also used in combination with other antibiotics.	AB-Piperacillin,Cl-227193,Pipcil,Pipera-Hameln,Piperacillin Curasan,Piperacillin Fresenius,Piperacillin Hexal,Piperacillin Monosodium Salt,Piperacillin Sodium,Piperacillin-Ratiopharm,Pipercillin,Pipracil,Pipril,T-1220,T1220,AB Piperacillin,Cl 227193,Cl227193,Curasan, Piperacillin,Monosodium Salt, Piperacillin,Pipera Hameln,Piperacillin Ratiopharm,Salt, Piperacillin Monosodium,Sodium, Piperacillin,T 1220
D011550	Pseudomonas aeruginosa	A species of gram-negative, aerobic, rod-shaped bacteria commonly isolated from clinical specimens (wound, burn, and urinary tract infections). It is also found widely distributed in soil and water. P. aeruginosa is a major agent of nosocomial infection.	Bacillus aeruginosus,Bacillus pyocyaneus,Bacterium aeruginosum,Bacterium pyocyaneum,Micrococcus pyocyaneus,Pseudomonas polycolor,Pseudomonas pyocyanea
D001618	beta-Lactamases	Enzymes found in many bacteria which catalyze the hydrolysis of the amide bond in the beta-lactam ring. Well known antibiotics destroyed by these enzymes are penicillins and cephalosporins.	beta-Lactamase,beta Lactamase,beta Lactamases