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. 2016 Jun 20;7:848. doi: 10.3389/fmicb.2016.00848

FIGURE 1.

FIGURE 1

(A) Growth of Chlorella culture during three different scale up cycles in outdoor mixotrophic commercial reactors. Each cycle (divided by the dash line) represents the seed production (60,000 L) and transfer (denoted by arrows) to a commercial-scale reactor (130,000 L volume). Bars represent Vampirovibrio chlorellavorus infection as detected by qPCR assay in each cycle. The Ct value, or cycle threshold, decreases as the target abundance increases. (B) Bacterial community structure from whole culture samples of same three runs based on 16s rRNA gene sequencing. The detection of V. chlorellavorus sequences coincide with a decline or arrest in the growth of Chlorella shown in (A).