Portland State University. Department of Biology
Dr. W. Herman Taylor
Date of Award
Master of Science (M.S.) in Biology
1 online resource (140 p.)
Escherichia coli, Arsenates, Arsenite
Bacterial strains resistant to arsenite, arsenate (or both) are readily isolated from nature. The resistance, in many cases, can be shown to be determined by conjugal plasmids. The mechanisms by which these plasmids confer resistance to arsenic compounds are entirely unknown. This study was undertaken to shed light on some of the physiological and genetic aspects of this resistance using plasmid-bearing strains of Escherichia coli which are highly resistant to both arsenite and arsenate. Most studies were carried out using E. coli J53 (R773) or the plasmid-free strain J53.
Trezona, Thomas Patrick, "Plasmid-mediated resistance to arsenite and arsenate in Escherichia coli" (1981). Dissertations and Theses. Paper 3131.