title: Dye-buoyant-density-gradient-analysis of Rhizobium deoxyribonucleic acid.
mesh_terms: D002499:Centrifugation, Density Gradient; D002876:Chromosomes, Bacterial / Q000032:analysis; D004396:Coloring Agents; D004269:DNA, Bacterial / Q000032:analysis*; D005111:Extrachromosomal Inheritance; D012231:Rhizobium / Q000032:analysis*
chemical_list: D004396:Coloring Agents; D004269:DNA, Bacterial