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. 1969 Jul;99(1):248-54.
doi: 10.1128/jb.99.1.248-254.1969.

Characterization of the deoxyribonucleic acid of various strains of halophilic bacteria

R L Moore, B J McCarthy

Characterization of the deoxyribonucleic acid of various strains of halophilic bacteria

R L Moore et al. J Bacteriol. 1969 Jul.

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.

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