Effects of oxygen and methyl viologen on Thermus aquaticus.
Under increased oxygen tensions, Thermus aquaticus exhibited a lag period in growth of 80 min, during which the specific activities of catalase, peroxidase, and superoxide dismutase increased. Methyl viologen increased the lag period, decreased the maximum population density, increased cell lysis, and induced catalase and superoxide dismutase. Methyl viologen, in conjunction with chloramphenicol, decreased cell viability.
MacMichael
G J
GJ
Techne Incorporated, Princeton, New Jersey 08540.
D000332:Aerobiosis; D002374:Catalase / Q000378:metabolism; D002470:Cell Survival / Q000187:drug effects; D002701:Chloramphenicol / Q000494:pharmacology; D010100:Oxygen / Q000633:toxicity*; D010269:Paraquat / Q000633:toxicity*; D010544:Peroxidases / Q000378:metabolism; D013482:Superoxide Dismutase / Q000378:metabolism; D013481:Superoxides / Q000378:metabolism; D013824:Thermus / Q000187:drug effects* / Q000201:enzymology / Q000235:genetics
D013481:Superoxides; D002701:Chloramphenicol; D010544:Peroxidases; D002374:Catalase; D013482:Superoxide Dismutase; D010269:Paraquat; D010100:Oxygen