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. 2014 Jan 17;9(1):e85731. doi: 10.1371/journal.pone.0085731

Figure 4. Occurrence of non-fluorescent cells during the production phase.

Figure 4

(A) Microcolony and lineage tree of the ΔaceE Δpqo Δpgi sensor strain. Different types of non-fluorescent cells are illustrated in B. (B) (I+II) Lysing cells and (III) dormant/or dead cell, which do not switch from growth to production. (IV) Leaky cell that shows decreasing fluorescence signal over time, potentially caused by a permeabilized cell membrane. (V*) Cells showing slow growth, but no production. Images marked with an asterisk show cells of another microcolony of the ΔaceE Δpqo Δpgi sensor strain, not shown in this figure.