title: Plasmid deoxyribonucleic acid in Rhizobium trifolii.
abstract: In deoxyribonucleic acid of Rhizobium trifolii centrifuged in cesium chloride-ethidium bromide equilibrium was found a sattelite peak containing covalently closed circular deoxyribonucleic acid. The plasmid had a molecular weight of about 64 x 10(6) shown by sedimentation in sucrose gradients and electron microscopy.
mesh_terms: D004247:DNA; D004269:DNA, Bacterial; D004276:DNA, Satellite; D005111:Extrachromosomal Inheritance; D008970:Molecular Weight; D009690:Nucleic Acid Conformation; D010957:Plasmids; D012231:Rhizobium / Q000032:analysis*
chemical_list: D004269:DNA, Bacterial; D004276:DNA, Satellite; D004247:DNA