Affiliation:
1. Departments of Microbiology and Genetics, University of Washington, Seattle, Washington 98105
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.
Publisher
American Society for Microbiology
Subject
Molecular Biology,Microbiology
Cited by
104 articles.
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