Figure 5.

Phage and community dynamics during a back-slopping propagation regime. (a) Dynamics in the titer of phages using L. lactis TIFN1 as an indicator organism for 25 days of subculturing in milk. The sampling points for quantitative PCR (QPCR) are from where the community dynamics data shown in b were generated. (b) Absolute abundance of the genetic lineages 1–8 during propagations as determined by genetic lineage-specific QPCR. The absolute abundances of genetic lineages 6 and 8 were below the detection level during subculturing, and excluded from the graph.