title: Disappearance of the covalently closed circular cryptic plasmid PO-2 in Salmonella pullorum MS35 containing F77.
mesh_terms: D002250:Carbon Radioisotopes; D002499:Centrifugation, Density Gradient; D002501:Centrifugation, Zonal; D002876:Chromosomes, Bacterial; D003227:Conjugation, Genetic; D004269:DNA, Bacterial / Q000032:analysis* / Q000302:isolation & purification; D004270:DNA, Circular / Q000032:analysis* / Q000302:isolation & purification; D005111:Extrachromosomal Inheritance; D005796:Genes; D008970:Molecular Weight; D011995:Recombination, Genetic; D012475:Salmonella / Q000032:analysis* / Q000378:metabolism; D012486:Salmonella typhimurium / Q000032:analysis / Q000378:metabolism; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D002250:Carbon Radioisotopes; D004269:DNA, Bacterial; D004270:DNA, Circular; D014316:Tritium; D013936:Thymidine