ric1Δ and ypt6Δ cells display
fragmented vacuoles. Wild-type (WT, SEY6210),
ric1Δ (GPY1480), and ypt6Δ (GPY1700)
strains were grown overnight in SDYE media, at 30°C, to
midlogarithmic phase. Cells were incubated with FM4–64 for 15 min,
resuspended in fresh media devoid of dye, and allowed to internalize
the dye for 45 min, at 30°C, before viewing. FM4–64, fluorescence
(left); DIC, differential interference contrast optics (right).