title: Characterization of the deoxyribonucleic acid of various strains of halophilic bacteria.
abstract: Bacteria classified as extreme halophiles, in the genera Halobacterium and Halococcus, contain deoxyribonucleic acid (DNA) which displays two components in a CsCl equilibrium density gradient. The base composition of the major DNA component ranges from 66 to 68% guanine plus cytosine (GC), whereas that of the satellite DNA comprising some 11 to 36% of the total, is between 57 and 60% GC. Purification of the bacterial cells in a CsCl density gradient and other more conventional strain purification procedures both indicated that the presence of the satellite DNA component is not a result of mixed cultures.
mesh_terms: D000166:Acridines / Q000494:pharmacology; D001419:Bacteria / Q000032:analysis* / Q000187:drug effects / Q000378:metabolism; D002499:Centrifugation, Density Gradient; D004269:DNA, Bacterial / Q000032:analysis*; D004926:Escherichia coli / Q000032:analysis; D006217:Halobacterium / Q000032:analysis*; D008937:Mitomycins / Q000494:pharmacology; D011550:Pseudomonas aeruginosa / Q000032:analysis; D012241:Rhodopseudomonas / Q000032:analysis; D012965:Sodium Chloride / Q000378:metabolism
chemical_list: D000166:Acridines; D004269:DNA, Bacterial; D008937:Mitomycins; D012965:Sodium Chloride