title: Development of bdellophage VL-1 in parasitic and saprophytic bdellovibrios.
abstract: Ultrastructure was correlated with growth kinetics of bdellophage VL-1 infecting host-dependent ("parasitic") Bdellovibrio bacteriovorus 109J in its Escherichia coli B host (the three-membered system), as well as in the host-independent ("saprophytic") derivative of the Bdellovibrio. Electron microscope observations showed the arrested growth of the phage-infected bdellovibrios, polar localization of the phage progeny, and stages in their release. Present evidence indicates that bdellophage DNA is derived from both the Bdellovibrio and its host cell.
mesh_terms: D001419:Bacteria / Q000254:growth & development*; D001435:Bacteriophages / Q000254:growth & development*; D004279:DNA, Viral; D004926:Escherichia coli; D008854:Microscopy, Electron; D009154:Mutation; D013194:Staining and Labeling; D013936:Thymidine; D014316:Tritium; D014779:Virus Replication
chemical_list: D004279:DNA, Viral; D014316:Tritium; D013936:Thymidine