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. 1977 Jun 20;113(3):205-7.
doi: 10.1007/BF00492026.

Deoxyribonucleic acid base composition of Simonsiellaceae

D A Kuhn, D A Gregory, M D Nyby, M Mandel

Deoxyribonucleic acid base composition of Simonsiellaceae

D A Kuhn et al. Arch Microbiol. .

Abstract

The molar percentages of guanine plus cytosine in the DNA of 51 strains of Simonsiellaceae were determined by buoyant density ultracentrifugation of cell lysates in CsCl. The DNA base ratios ranged from 41-55 mole-% guanine plus cytosine. These values fall within the range known for the Order Cytophagales, the non-fruiting gliding bacteria, and are outside the range of the Order Myxobacterales, the fruiting myxobacteria. Among the strains of the genus Simonsiella, four distinct group can be delineated on the basis of source of origin (sheep, dog, cat, human) and GC content. The neotype of Alysiella filiformis has a GC content of 45.4 mole-%.

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