Biotium offers a variety of dyes and stains that have been validated for use in yeast.
Organelle stains:
MitoView™ dyes to stain mitochondria,
LysoView™ dyes to stain the vacuole,
Thiazole Orange to stain the nucleus.
Cell wall stains:
Calcofluor White and
Concanavalin A (ConA).
Wheat Germ Agglutinin (WGA) localizes to bud scars.
Viability and metabolism:
Live-or-Dye™ Fixable Live/Dead Kit,
Viability Staining Kit with 3 color combos to choose from, and
Vitality Staining Kit, containing the metabolic reporter
ViaVac™ Red/Green (also available as a standalone dye).