title: Bacteriophage P4: a satellite virus depending on a helper such as prophage P2.
mesh_terms: D002118:Calcium; D002876:Chromosomes, Bacterial; D003090:Coliphages / Q000254:growth & development* / Q000276:immunology / Q000302:isolation & purification; D003433:Crosses, Genetic; D003470:Culture Media; D004267:DNA Viruses / Q000254:growth & development* / Q000276:immunology / Q000302:isolation & purification; D004926:Escherichia coli; D005796:Genes; D006378:Helper Viruses / Q000254:growth & development / Q000276:immunology; D006358:Hot Temperature; D008242:Lysogeny; D009154:Mutation; D009500:Neutralization Tests; D012526:Satellite Viruses / Q000254:growth & development* / Q000276:immunology / Q000302:isolation & purification; D010948:Viral Plaque Assay; D014779:Virus Replication
chemical_list: D003470:Culture Media; D002118:Calcium