Circular DNA from the water mold Saprolegnia |
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| Authors: | G. D. Clark-Walker F. H. Gleason |
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| Affiliation: | (1) Department of Developmental Biology, Research School of Biological Sciences, Australian National University, Canberra |
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| Abstract: | Summary Circular DNA has been investigated in the water mold Saprolegnia. This organism was shown to contain two satellite DNA components at 1.685 and 1.707 g/cm3 in addition to main band DNA at a buoyant density of 1.717 g/cm3. The component banding at a density of 1.685 g/cm3 was found to occur as closed circles of length 14  m in the relaxed form. On the basis of sucrose gradient studies this DNA is thought to be mitochondrial in origin. No other class of circular molecules was observed. |
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