Fig. 1. Confocal scanning of yolk-sac mitochondria-rich cells (MRCs) double-labeled with Con-A–Texas-Red (red) and Na⁺/K⁺-ATPase antiserum (second antibody conjugated with FITC; green) in larvae acclimated to high-Cl^– medium (A,B) or low-Cl^– medium (C,D). The x–y-plane (A,C) and z-plane (B,D) scanning images are shown. Magnification: 1000x. Scale bars: 15 µm (A,C); 10 µm (B,D).