Figure 6

Analysis of Ca²⁺ initiated cell flocculation. The strains were grown as described in Figure 5 to saturation at OD₆₀₀ ≈ 1.4. The cultures were harvested and washed twice with deflocculation buffer, followed by initiation of flocculation as described in the Methods. The assays were conducted in triplicate. The name of each strain shows only the last two numbers.