JCS -- Chida et al. 117 (15): 3141 Figure IG1

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Fig. 1. Effect of EtBr on growth of Dictyostelium discoideum Ax-2 cells. Various concentrations of EtBr were added to exponentially growing cells (2x10⁵ cells/ml) in axenic growth medium (PS medium), followed by cell counts under a haemocytometer. () control (non-EtBr-treated cells); ( ${circ}$ ) cells treated with 10 µg/ml of EtBr, ( ${blacktriangleup}$ ) 20 µg/ml of EtBr, ( ${triangleup}$ ) 30 µg/ml of EtBr, ( ${blacksquare}$ ) 40 µg/ml of EtBr and ( ${square}$ ) 50 µg/ml of EtBr. Similar results were obtained by cell counts in three independent experiments.