Figure 2From: Monitoring the prevalence of viable and dead cariogenic bacteria in oral specimens and in vitro biofilms by qPCR combined with propidium monoazideEffect of 25 μM PMA on heat-killed bacteria as assessed by qPCR. Serially diluted chromosomal DNA from live cells and live cells spiked with heat-killed cells of (A) S. mutans and (B) S. sobrinus. Dead cells (+), S. mutans/S. sobrinus DNA with DNA from dead S. mutans/S. sobrinus. Dead cells (−), S. mutans/S. sobrinus DNA only. All experiments were performed independently three times.Back to article page