Spore Staining

Reveals whether a bacterium can form a tough, dormant endospore, by using heat to force a dye through the endospore's otherwise nearly impermeable protective coat.

References

• Schaeffer, A.B., Fulton, M.D. "A Simplified Method of Staining Endospores." Science 77, no. 1990 (1933): 194–196.