title: Vegetative bacteriophage lambda-DNA. I. Infectivity in a spheroplast assay.
mesh_terms: D001681:Biological Assay; D002021:Buffers; D002499:Centrifugation, Density Gradient; D003090:Coliphages / Q000254:growth & development*; D003470:Culture Media; D004269:DNA, Bacterial / Q000378:metabolism; D004279:DNA, Viral; D004926:Escherichia coli; D006378:Helper Viruses; D010759:Phosphorus Isotopes; D011523:Protoplasts; D012329:RNA, Bacterial / Q000378:metabolism; D013936:Thymidine / Q000378:metabolism; D014316:Tritium
chemical_list: D002021:Buffers; D003470:Culture Media; D004269:DNA, Bacterial; D004279:DNA, Viral; D010759:Phosphorus Isotopes; D012329:RNA, Bacterial; D014316:Tritium; D013936:Thymidine