Fig. 4. 6 h infusions. High-magnification (2000x) light micrographs showing
H+-ATPase staining in gills from (A) colchicine-treated,
NaCl-infused, (B) base-infused and (C) colchicine-treated, base-infused fish.
c, cytoplasmic; b, basolateral; i, intermediate staining pattern. Scale bar,
10 µm.