Relative distribution of actin and villin in opossum kidney cells stained with rhodamine-phalloidin (red) and FITC-IgG (green), respectively.
(A–E) Control cells. (F–J) Cells exposed in 0.1 mM Pi for 5 min. A, F to E, and J, respectively, represent scanning sections from the upper (apical) cytoplasmic region towards the (basal) attachment site of the cells. The step size of the optical sections was adjusted to 0.5 µm. Scale bar = 10 µm.