title: Effects of 60Co gamma-rays, ultraviolet light, and mitomycin C on Halobacterium salinarium and Thiobacillus intermedius.
abstract: Lethal effects of 60Co gamma-rays, UV light, and mitomycin C on two kinds of bacteria, Halobacterium salinarium which grows in highly concentrated salt media and Thiobacillus intermedius which requires reduced sulfur compounds, were studied and compared with those on Escherichia coli B/r. D37 values for H. salinarium, T. intermedius and E. coli B/r were 393, 150, and 92 Gy, respectively, by exposure to 60Co gamma-rays. They were 212, 38, and 10 J/m2, respectively, by exposure to UV light and 2.36, 0.25, and 0.53 microgram/ml/h, respectively, by exposure to mitomycin C. Against these agents, H. salinarium was much more resistant than T. intermedius and E. coli B/r.
authors.affiliation: Graduate Department of Gene Science, Faculty of Science, Hiroshima University, Japan.
authors.forename: H R
authors.initials: HR
authors.lastname: Shahmohammadi
authors.forename: E
authors.initials: E
authors.lastname: Asgarani
authors.forename: H
authors.initials: H
authors.lastname: Terato
authors.forename: H
authors.initials: H
authors.lastname: Ide
authors.forename: O
authors.initials: O
authors.lastname: Yamamoto
mesh_terms: D003037:Cobalt Radioisotopes; D004926:Escherichia coli / Q000187:drug effects / Q000528:radiation effects; D005720:Gamma Rays; D006217:Halobacterium / Q000187:drug effects / Q000528:radiation effects*; D016685:Mitomycin / Q000494:pharmacology; D011836:Radiation Tolerance; D013855:Thiobacillus / Q000187:drug effects / Q000528:radiation effects*; D014466:Ultraviolet Rays
chemical_list: D003037:Cobalt Radioisotopes; D016685:Mitomycin