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Effects of potassium bicarbonate treatment on the chemotaxes of CPY3401 toward urea and flurofamide in PVP-chemotaxis buffer. CPY3401 cells suspended in PVP-chemotaxis buffer were incubated with 10 mM KHCO3 at 28°C for 10 min, and the chemotactic activities in the absence (□) or presence of 10 mM urea (○) and 1 μM flurofamide (▵) were determined. Error bars show standard deviations.
