title: Liberation of Agrobacterium tumefaciens DNA from the crown gall tumor cell DNA by shearing.
mesh_terms: D002499:Centrifugation, Density Gradient; D004269:DNA, Bacterial / Q000302:isolation & purification*; D004273:DNA, Neoplasm / Q000302:isolation & purification; D010941:Plant Tumors / Q000382:microbiology*; D010947:Plants, Toxic; D012231:Rhizobium; D014026:Nicotiana
chemical_list: D004269:DNA, Bacterial; D004273:DNA, Neoplasm